RE: (forte-users) Debugging 'fixes' problem!!!

Duncan
This is often indicative of a race condition, especially when
multi-threading is involved.
What can happen is that task A is using something created or initialized by
task B,
and task B hasn't gotten around to doing its thing before task A asks for
it.
When running in debug mode, you give everything a lot more time to get
things
done while it's waiting for you to click the next button. So, when task A
starts task B,
you click Run on task B, watch it happen, go back to task A and click,
watch, click, etc.,
and by the time you get to the trouble spot, task B has long since done what
it had to do.
HTH.
Ken.
==========================
Ken Gacioch
Senior Consultant
Caro Systems, Inc.
[email protected]
-----Original Message-----
From: Duncan Kinnear [SMTP:[email protected]]
Sent: Sunday, November 21, 1999 11:33 PM
To: [email protected]
Subject: (forte-users) Debugging 'fixes' problem!!!
Hi folks,
I've got a weird one here.
I'm trying to find out why my code to highlight a particular outline field
row does not work.
However, when I run it in debug, it works perfectly! (The correct row is
highlighted). Anybody got any idea how I can get debug to behave
consistently with "The running man"?
I have tried using "<OutlineField>.UpdateFieldFromData()" as well as
using the same method on the specific DisplayNode involved.
I must point out that the outline field is in a window running as a
separate asynchronous task. Would that make any difference when
running in debug? When the second debug window appears for this
task I just click on the "Go" button and there are no breakpoints.
Any help would be greatly appreciated.
Cheers,
Duncan Kinnear,
McCarthy and Associates, Email:
[email protected]
PO Box 764, McLean Towers, Phone: +64 6 834 3360
Shakespeare Road, Napier, New Zealand. Fax: +64 6 834
3369

Similar Messages

Oggetto: Re: (forte-users) XML - ExportDocumentproblem

Ok, I'll detail the question.
The application I'm talking about is a Fortè server and a Java client (or other
client platform).
I have to send via HTTP a XML message to and from the two.
I'm developing the Forte side (but think will have the same problems in Java).
Since there could be lots of client sides developed by others teams (or given
out to external suppliers) my concern is to send the message containing the DTD
information to enforce the validation on the various application.
Maybe you are right and I'm overcautious, but the messages are to be built
following the various DTDs (and this is impossible aside starting from a xml
template, since I cannot create a DTD runtime or insert a declaration <!DOCUMENT
...> ... I'll example:)
doc : document = new();
xml : processistruction = doc.createprocessistruction('xml version="1.0"');
root : element = doc.createelement('root');
dtd : ????? = doc.create??????(???);
doc.addchild(xml);
doc.appendchild(dtd);
doc.addchild(root);
All would be nice if I only know how to fill the ???
This is needed because I want to use the parser to make the work for me and
check the doc while I build it.
Also since the DTD should be put on a url it could change and I need to send
this info along with the message to inform the client (since I'm the server
[suffering of multiple personality problem] I think is my duty).
If I recall well DTD are meant to force the parser to create defaults and things
like that.
As I said I'm new of the problem and probabli I may use DTD in a wrong way, but
Luca
Matthew Middleton <mathew.middletonlawpoint.com.au> il 09/08/2000 01.03.16
Per: forte-userslists.xpedior.com
cc: (ccr: Luca Gioppo/CSI/IT)
Oggetto: Re: (forte-users) XML - ExportDocument problem

I went through the same process some time back. I
submitted a call to Forte and was informed that there
are hooks but they were intentionally undocumented
because Forte had plans to provide a interface to
Source Control Managers in future releases. If you
submit a call, they will send you a ZIP file
containing instructions on how to use the hooks. The
hooks have proven very useful.
--- Luca Gioppo <Luca.Gioppocsi.it> wrote:
>
>
I think that the topic is still open and alive.
In my case I have the need to integrate with PVCS
dimension.
The problem for me is that we develop both with java
and tool, and is
frustrating seeing java people smiling as tha
various tools give the chance to
integrate to various extends with source control
products.
I'm interested too in the problem, looking for a
solution since a bit, but no
satifactory solutions.
So count 2 on the problem.
Luca
"David Potts" <david.pottss1.com> il 23/11/2000
17.12.47
Per: forte-userslists.xpedior.com
cc: (ccr: Luca Gioppo/CSI/IT)
Oggetto: (forte-users) Source Control
Hello,
I'm looking how to do version control for forte
development, and have
done a search on the list archive. There are lots
of messages asking
how to do source control, but the answers all seem
to be "roll your
own". My questions are:
(1) Most of the postings seem to come from some
years ago. What is the
current state of play with source control for forte
4GL?
(2) There was some mention of "hooks". What are
these hooks?
(3) With Sun appearing on the scene, anyone got any
idea where source
control is going in future versions?
I'm very new to Forte, so sorry if this topic has
been closed.
Cheers,
Dave.
ATTACHMENT part 2 application/octet-streamname=david.potts.vcf
http://shopping.yahoo.com/

Re: (forte-users) Display Problem

Judging by the title bar of the window, it looks like the application is
not running on the Boston user's PC, but is being driven by some sort of
PCAnywhere-style program. Maybe that's the problem?
At 14:44 28/02/00 -0800, Holm, Steve wrote:
<<good.doc>>
We have an application running in production that has been working just
fine. The screen layout is in the attached good.doc document. We brought
up our Boston division on this application and one user there has a problem
with the tabs at the bottom. The bottom section is scrunched together so
that not all the data is visible. I have attached a screen shot of the
application on her pc (bad.doc). Does anyone have any idea what might be
causing this?
<<bad.doc>>Stephen Szalla
Senior Technical Specialist
Sun Microsystems Australia - Forte Tools Group
Voice: +61 3 9699 7754
Fax: +61 3 9699 7781
Mobile: +61 419 392 867
mailto:Stephen.Szallaaus.sun.com
http://www.forte.com

My guess is, your third service object is not referenced.
-----Original Message-----
From: Forte App [mailto:forteapphotmail.com]
Sent: Wednesday, May 17, 2000 3:08 PM
To: kamranaminyahoo.com
Subject: (forte-users) Partition problem
Hello Everyone,
I have three (3) service objects in my project and when i went into
partition workshop i can only see two service objects instead of three and
all the three service objects properties settings are same
iam using Forte 3.0L2.
Thanks in Advance
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the login: forte and the password: archive. To unsubscribe, send in a new
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RE: (forte-users) 3J= 3M new to me error

Hi Thomas,
Thanks for your email but I think it will be interesting for Brenda not me.
It is exactly what I have expected from Forte Support: detailed information
about bugs and workarounds. But what I cannot understand is that #53398 was
released without any information about possible reasons for this problem or
suggested workarounds. My first reaction after reading this bugreport was to
open a new case at CallCenter to get more information about it. Please
release more information with your bug reports !
Regards
Zenon Adamek
Information Services
Senior Programmer Analyst
Tel: 905 712-1084 ext. 3628
Fax: 905 712-6709
E-mail: zadamekpurolator.com
-----Original Message-----
From: Thomas Degen - Sun Germany Forte Tools - Bonn
[SMTP:thomas.degensun.com]
Sent: Wednesday, September 27, 2000 9:49 AM
To: Adamek, Zenon
Cc: 'Brenda Cumming'; Forte-userslists.xpedior.com
Subject: RE: (forte-users) 3J=>3M new to me error
Hi Zenon,
bug #53398 is not a bug which will likely get fixed, it's an informational
bugreport.
You might see an errorstack like Brenda has reported (and described in
informational
bugreport #53398) probably when you are doing something illegal that is
possible
via Forte Tool but Forte is not trapping it for performance reasons. Hence
you will see
the error coming from your illegal operation only at runtime, probably
only
while
running interpreted in the Forte IDE, but in worst case it might be even a
segmentation
violation.
Technotes 12448 'Sudden client partition crashes at runtime' and 11225
'Don't reparent
mapped Widgets between UserWindows at runtime' explain this matter . See
attached.
But maybe Brenda is much more experiencing a problem as described by Forte
Technote 11398 'Read Only Workspace Errors using ListViews or ActiveX
control'
that might get easily resolved via setting of FORTE_YIELD_THROTTLE=0.
Good Luck and Best Regards !
BTW: I've logged bug #53398, so I've felt responsible to explain its real
background.
Thomas
Thomas Degen
Sun Microsystems - Forte Tools
Forte CTE & Sustaining Group
Technical Support Germany
tel.:+49.228/91499-50
MailTo:thomas.degensun.com
Technote 11398 Read Only Workspace Errors using ListViews or ActiveX
control
SCENARIO:
Getting some unusual interpreter errors that result in an error stating
that
the workspace has been set to read only. Please see Enclosures for the
two
most common error stacks that have been encountered. The abbreviated
versions of the errors are:
- Can't read record (record size = -1)
- Id in index does not match id in record header in data file
- Recursive deserialization attempted.
- Unknown Mark type in deserialization
- Could not read record (64,74615) from repository data file.
Header
is corrupt.
These errors can be happening in either the development environment when
running from one of the development workshops, or with the deployed
application.
The bug outlined in this Technote may be the culprit if the errors above
are
seen when running a client on Windows NT or Motif and the user interface
incorporates ActiveX controls or ListView/TreeView widgets.
CAUSE:
Basically what is happening is that in rare circumstances Forte may invoke
a
nested copy of the interpreter while the first interpreter has yielded.
This
is not a problem in and of itself, but in the case where the original
interpreter was in the middle of a repository fetch when it yielded, and
the second interpreter needs to fetch code as well, we will get one of the
errors listed above, depending on the exact timing. The reason for the
errors is that the repository code at this level is thread-safe but not
re-entrant. It is protected by a mutex that is already owned by the
current task. Which, given the scenario outlined here, where the two
interpreters are running inside of the same task, results in the nested
interpreter being allowed to change data out from under the first.
While for every fetch one or more calls to WindowSystem.Yield will be made
(this is there to prevent the semblance of system lock-up on Win 3.1,
where
Yield is the only way other applications can be allowed to run), there is
a parameter which controls how often to actually yield, which by default
is
set to one out of every 100 calls. This is the reason the problem is
intermittent--you need a yield to occur during a repository fetch
which starts another interpreter which also needs to fetch code from
disk.
The reason this has only surfaced recently is that the nested interpreter
scenario can only happen in 2 cases that we know of:
- ActiveX controls which respond to events/Windows messages
- Outline fields/ListViews with column(s) mapped to virtual
attributes
In all other normal cases, the yield can process the message (typically a
paint message) without starting another interpreter, so regardless of
whether
the first interpreter yielded during a repository operation or not, there
is
no conflict.
SOLUTION:
The workaround is to prevent yields altogether by setting the
FORTE_YIELD_THROTTLE environment variable equal to 0 in the client's
environment. This should have no detrimental effects since the yield code
is in place solely for Windows 3.1x clients.
ERROR STACK 1
SYSTEM ERROR: Because of a prior error, your workspace was set to
read-only to
prevent the application from attempting to write to the repository. The
repository and work you have saved to the repository are safe. If your
workspace
contains unsaved work, you may use the following procedure to save this
work.
First, export the changed components. Then, shut down and restart this
application and reopen this workspace in read-write mode. Finally, import
the
changed components and save your workspace.
Class: qqrp_RepResourceException
Error #: [1101, 695]
Detected at: qqrp_Session::GetObjectById
Last TOOL statement: method EFWindowController.EFEventLoop
Error Time: Tue Nov 18 15:58:47
Exception occurred (locally) on partition "ConPlus_GUI_cl0_Client",
(partitionId = 7EFAE060-4AFA-11D1-A1C1-1FDC8A99AA77:0x446:0x1,
taskId =
[7EFAE060-4AFA-11D1-A1C1-1FDC8A99AA77:0x446:0x1.23]) in application
"ConPlus_GUI_cl0", pid 147 on node ISD060 in environment EdgeTest.
The remainder of the Error Manager stack is:
SYSTEM ERROR: Internal Error attempting to deserialize element (64,67470)
(fetch
bitmask is 0x20). Your workspace is now read-only to prevent the
application
from attempting to write to the repository. The repository and work you
have
saved to the repository are safe. If your workspace contains unsaved work,
you
may use the following procedure to save this work. First, export the
changed
components. Then, shut down and restart this application and reopen this
workspace in read-write mode. Finally, import the changed components and
save
your workspace.
Class: qqrp_RepResourceException
Error #: [1101, 61]
Detected at: qqrp_LogicalSession::MaterializeObject
Last TOOL statement: method EFTabManagerNew.EFNoteBookHandler
Error Time: Tue Nov 18 15:58:47
Exception occurred (locally) on partition "ConPlus_GUI_cl0_Client",
(partitionId = 7EFAE060-4AFA-11D1-A1C1-1FDC8A99AA77:0x446:0x1,
taskId =
[7EFAE060-4AFA-11D1-A1C1-1FDC8A99AA77:0x446:0x1.23]) in application
"ConPlus_GUI_cl0", pid 147 on node ISD060 in environment EdgeTest.
SYSTEM ERROR: Unknown Mark type in deserialization.
Class: qqsp_ImplementationException
Error #: [1101, 34]
Detected at: qqrp_DeSerializeObject::ProcessHdr
Error Time: Tue Nov 18 15:58:47
Exception occurred (locally) on partition "ConPlus_GUI_cl0_Client",
(partitionId = 7EFAE060-4AFA-11D1-A1C1-1FDC8A99AA77:0x446:0x1,
taskId =
[7EFAE060-4AFA-11D1-A1C1-1FDC8A99AA77:0x446:0x1.23]) in application
"ConPlus_GUI_cl0", pid 147 on node ISD060 in environment EdgeTest.
ERROR STACK 2
SYSTEM ERROR: A serious error has occurred in Repository
(c:\PROGRA~1\CSSPTEST\conplu0). Corrective action may be necessary.
Notify
your repository administrator.
Class: qqsp_ImplementationException
Error #: [1101, 198]
Detected at: qqrp_Repository::Fetch
Last TOOL statement: method
SalesDevelopment_NWC.DEVNotifyofTabSetCurrent
Error Time: Wed Dec 03 10:27:22
Exception occurred (locally) on partition "ConPlus_GUI_cl0_Client",
(partitionId = 769D4310-6B88-11D1-84FD-65BF87C8AA77:0x121:0x1,
taskId =
[769D4310-6B88-11D1-84FD-65BF87C8AA77:0x121:0x1.22]) in application
"ConPlus_GUI_cl0", pid 172 on node ISD42 in environment Edge.
SYSTEM ERROR: Could not read record (64,74615) from repository data file.
Header is corrupt.
Class: qqsp_ImplementationException
Error #: [1106, 612]
Detected at: qqbt_BtreeAccess::FetchDataFileRecord
Error Time: Wed Dec 03 10:27:22
Exception occurred (locally) on partition "ConPlus_GUI_cl0_Client",
(partitionId = 769D4310-6B88-11D1-84FD-65BF87C8AA77:0x121:0x1,
taskId =
[769D4310-6B88-11D1-84FD-65BF87C8AA77:0x121:0x1.22]) in application
"ConPlus_GUI_cl0", pid 172 on node ISD42 in environment Edge.
Technote 11225 Don't reparent mapped Widgets between UserWindows at
runtime
It is sometimes tempting to unparent a widget from one UserWindow and
reparent
it into another at runtime. However, this can cause crashes if the widget
(or
its decendants) are "mapped" to data. Here's why...
Suppose you have two UserWindows, UW1 and UW2. UW1 contains a DataField
(DF1)
which is mapped to a TextData. UW2 contains a RadioList (RL2) which is
mapped to
a scalar Integer. At compile time, every mapped attribute is internally
assigned
a "Map ID" (a small integer) which is used to tie the Widget to its
corresponding attribute. These Map IDs are used by the Widget to look up a
pointer to their data in a "Map" which is maintained by the UserWindow.
Each
UserWindow is assumed be to independent of the others, so there is nothing
wrong
with Widgets in different UserWindows being assigned the same Map IDs.
In
this
case, let's assume that DF1 and RL2 both got assigned the same Map ID of
3. No
problem so far, since each lives in a separate UserWindow with a separate
map.
Now suppose at runtime the application "detaches" or unparents DF1 from
its
UserWindow and reparents it somewhere into UW2. When it comes time for DF1
to
paint itself the Display System it must ask the Runtime System for the
value of
DF1's mapped attribute. To do that it says "give me the value of the
TextData
for DF1. You'll find it in the Map for this UserWindow (UW1), and its Map
ID is
3". When the runtime system goes to do this it expects to find a TextData
in
this "slot" of the map, but instead it picks up the integer which is
mapped to
RL2. At best this leads to bad data being returned; more likely you get a
segfault and a crash.
If DF1 was not a mapped attribute (say, a Rectangle) there would be no
problem
because there is no data mapped to a Rectangle. If instead of moving DF1
you
created a brand new DataField on the fly there would be no problem,
because the
dynamic DataField would not have any Map ID and so couldn't conflict with
any
IDs in UW2.
So how do you solve this problem? This is exactly what Nested Windows are
all
about. While you can't move DF1 into the middle of UW2, you can nest
UW1.
This
works because UW1 brings its map with it, and when you access DF1 it knows
to
look up its value in UW1's map.
UserWindows are intended to be the "unit of compilabilty" that can be
nested
inside other UserWindows. It is dangerous to "transplant" anything from
inside
one UserWindow into another at runtime.
(Note that you can't avoid this problem by cloning DF1 because the MapID
gets
copied along with it, and the clone will fail in the same way.)
Further details explained in related technote 12448 'Sudden client
partition
crashes at runtime.'
Technote 12448 Sudden client partition crashes at runtime
Scenario : You have two UserWindows, A and B. When Window A starts up, it
instantiates an instance of B and reparents some component of B into A's
window
hierarchy.
This is not allowed and almost always leads to an error at best or at
worse a
segmentation fault.
Here's why :
When you compile a UserWindow in Forte, each "mapped attribute" (whether a
form
element or menu element) is assigned an internal ID which represents an
offset into
that UserWindow's table of mapped attributes. This offset is only valid
in the
context of the UserWindow in which it was compiled. If you detach a
FieldWidget or
MenuWidget from one compiled Window ("tmpMenu" for example) and then
parent
into another compiled window ("tmpWindow") the internal ID comes with it.
When Forte tries to make use of that copied widget it uses the ID as an
offset
into tmpWindow's table of mapped attributes. But that copied offset is
meaningless in the context of tmpWindow's table, so you get some kind off
error.
In this case it found that the data type of the variable in the slot
wasn't
what
was expected. But you might even index off the end of the table and get a
segmentation fault.
There is nothing to prevent you from dynamically creating menu items and
adding
them to a window at runtime; that will work fine. Although of course you
can't
access them via mapped attributes, since those can only be created at
compile time.
But you are not allowed to reparent a widget from one compiled UserWindow
into
the hierarchy of another.
More information may be found in technote 11225 'Don't reparent mapped
Widgets
between UserWindows at runtime'.
Possible errorstacks seen at runtime instead of a complete crash or
segmentation
violation while you are illegally reparenting a widget or menuitem between
windows
at runtime:
Map::SetSubjectData: Invalid conversion from map type 0 to subject type 22
SYSTEM ERROR: Bad parameter at location 3 in method
qqrt_MapClassAccess::ProcessSubjectData.
Class: qqsp_Exception
Error #: [1001, 381]
Detected at: qqrt_MapClassAccess::ProcessSubjectData at 3
Error Time: Wed Aug 09 13:03:57
Exception occurred (locally) on partition "testproject_CL0_Client",
(partitionId = D4914A10-36C1-11D4-91B3-419AA33BAA77:0x208:0xd,
taskId =
[D4914A10-36C1-11D4-91B3-419AA33BAA77:0x208:0xd.68]) in application
"FTLaunch_cl0", pid 672 on node ONEWAY in environment Audi3M2Env.
At 13:14 26.09.00 -0400, Adamek, Zenon wrote:
Hi,
It is the unfixed defect 53398. Please contact Forte support.
Zenon
-----Original Message-----
From: Brenda Cumming [SMTP:brenda_cummingtranscanada.com]
Sent: Tuesday, September 26, 2000 1:15 PM
To: Forte User group
Subject: (forte-users) 3J=>3M new to me error
Hi,
We are in the process of going from 3J1 to 3.0.M.2, and I am getting
this error that I am unfamiliar with on a GUI that works fine in 3J.
It
does not happen all the time, and I have been unable to establish the
pattern that kicks it off. Has anyone seen this before?
PS- this error is not occurring in the deployed (non-compiled) app,but
when I am running locally from my workspace.
SYSTEM ERROR: Bad parameter at location 6 in method
qqrt_MapClassAccess::ProcessSubjectData.
Class: qqsp_Exception
Error #: [1001, 381]
Detected at: qqrt_MapClassAccess::ProcessSubjectData at 6
Error Time: Wed Sep 20 14:32:54
Exception occurred (locally) on partition
"ABSDevtStartUp_CL0_Client",
(partitionId = 36172000-5DA8-11D4-B1F0-14015EDAAA77:0x2da:0x2,
taskId =
[36172000-5DA8-11D4-B1F0-14015EDAAA77:0x2da:0x2.25]) in
application
"Forte_cl0", pid 93 on node T5621 in environment AbisDMEnv.
SYSTEM ERROR: Can't find scope 20070 for a class.
Class: qqsp_Exception
Error #: [201, 11]
Detected at: qqlo_ClassTableLoadScope at 1
Error Time: Wed Sep 20 14:32:54
Exception occurred (locally) on partition"ABSDevtStartUp_CL0_Client",
(partitionId = 36172000-5DA8-11D4-B1F0-14015EDAAA77:0x2da:0x2, taskId =
[36172000-5DA8-11D4-B1F0-14015EDAAA77:0x2da:0x2.25]) in
application
"Forte_cl0", pid 93 on node T5621 in environment AbisDMEnv.
SYSTEM ERROR: Because of a prior error, your workspace was set to
read-only to prevent the application from attempting to write to the repository.
The repository and work you have saved to the repository are safe. If
your
workspace contains unsaved work, you may use the following procedure
to save this work. First, export the changed components. Then, shut down and
restart this application and reopen this workspace in read-write mode.
Finally, import the changed components and save your workspace.
Class: qqrp_RepResourceException
Error #: [1101, 695]
Detected at: qqrp_Session::IsDistributed
Last TOOL statement: method PPMeasWin.
Error Time: Wed Sep 20 14:32:54
Exception occurred (locally) on partition
"ABSDevtStartUp_CL0_Client",
(partitionId = 36172000-5DA8-11D4-B1F0-14015EDAAA77:0x2da:0x2, taskId =
[36172000-5DA8-11D4-B1F0-14015EDAAA77:0x2da:0x2.25]) in
application
"Forte_cl0", pid 93 on node T5621 in environment AbisDMEnv.
SYSTEM ERROR: Internal Error attempting to deserialize element
(64,120684) (fetch bitmask is 0x20). Your workspace is now read-onlyto
prevent
the application from attempting to write to the repository. The
repository
and work you have saved to the repository are safe. If your workspace
contains unsaved work, you may use the following procedure to savethis
work.
First, export the changed components. Then, shut down and restart this
application and reopen this workspace in read-write mode. Finally, import the
changed components and save your workspace.
Class: qqrp_RepResourceException
Error #: [1101, 61]
Detected at: qqrp_LogicalSession::MaterializeObject
Error Time: Wed Sep 20 14:32:54
Exception occurred (locally) on partition
"ABSDevtStartUp_CL0_Client",
(partitionId = 36172000-5DA8-11D4-B1F0-14015EDAAA77:0x2da:0x2, taskId =
[36172000-5DA8-11D4-B1F0-14015EDAAA77:0x2da:0x2.25]) in
application
"Forte_cl0", pid 93 on node T5621 in environment AbisDMEnv.
SYSTEM ERROR: Recursive Deserialization attempted, Internal Error!
Class: qqsp_UsageException with ReasonCode: SP_ER_INVALIDSTATE
Error #: [301, 231]
Detected at: qqsp_DeSerializeDriver::Run at 1
Error Time: Wed Sep 20 14:32:54
Exception occurred (locally) on partition"ABSDevtStartUp_CL0_Client",
(partitionId = 36172000-5DA8-11D4-B1F0-14015EDAAA77:0x2da:0x2, taskId =
[36172000-5DA8-11D4-B1F0-14015EDAAA77:0x2da:0x2.25]) in
application
"Forte_cl0", pid 93 on node T5621 in environment AbisDMEnv.
For the archives, go to: http://lists.xpedior.com/forte-users and use
the login: forte and the password: archive. To unsubscribe, send in anew
email the word: 'Unsubscribe' to:forte-users-requestlists.xpedior.com
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the login: forte and the password: archive. To unsubscribe, send in a new
email the word: 'Unsubscribe' to: forte-users-requestlists.xpedior.com

Hi Thomas,
Thanks for your email but I think it will be interesting for Brenda not me.
It is exactly what I have expected from Forte Support: detailed information
about bugs and workarounds. But what I cannot understand is that #53398 was
released without any information about possible reasons for this problem or
suggested workarounds. My first reaction after reading this bugreport was to
open a new case at CallCenter to get more information about it. Please
release more information with your bug reports !
Regards
Zenon Adamek
Information Services
Senior Programmer Analyst
Tel: 905 712-1084 ext. 3628
Fax: 905 712-6709
E-mail: zadamekpurolator.com
-----Original Message-----
From: Thomas Degen - Sun Germany Forte Tools - Bonn
[SMTP:thomas.degensun.com]
Sent: Wednesday, September 27, 2000 9:49 AM
To: Adamek, Zenon
Cc: 'Brenda Cumming'; Forte-userslists.xpedior.com
Subject: RE: (forte-users) 3J=>3M new to me error
Hi Zenon,
bug #53398 is not a bug which will likely get fixed, it's an informational
bugreport.
You might see an errorstack like Brenda has reported (and described in
informational
bugreport #53398) probably when you are doing something illegal that is
possible
via Forte Tool but Forte is not trapping it for performance reasons. Hence
you will see
the error coming from your illegal operation only at runtime, probably
only
while
running interpreted in the Forte IDE, but in worst case it might be even a
segmentation
violation.
Technotes 12448 'Sudden client partition crashes at runtime' and 11225
'Don't reparent
mapped Widgets between UserWindows at runtime' explain this matter . See
attached.
But maybe Brenda is much more experiencing a problem as described by Forte
Technote 11398 'Read Only Workspace Errors using ListViews or ActiveX
control'
that might get easily resolved via setting of FORTE_YIELD_THROTTLE=0.
Good Luck and Best Regards !
BTW: I've logged bug #53398, so I've felt responsible to explain its real
background.
Thomas
Thomas Degen
Sun Microsystems - Forte Tools
Forte CTE & Sustaining Group
Technical Support Germany
tel.:+49.228/91499-50
MailTo:thomas.degensun.com
Technote 11398 Read Only Workspace Errors using ListViews or ActiveX
control
SCENARIO:
Getting some unusual interpreter errors that result in an error stating
that
the workspace has been set to read only. Please see Enclosures for the
two
most common error stacks that have been encountered. The abbreviated
versions of the errors are:
- Can't read record (record size = -1)
- Id in index does not match id in record header in data file
- Recursive deserialization attempted.
- Unknown Mark type in deserialization
- Could not read record (64,74615) from repository data file.
Header
is corrupt.
These errors can be happening in either the development environment when
running from one of the development workshops, or with the deployed
application.
The bug outlined in this Technote may be the culprit if the errors above
are
seen when running a client on Windows NT or Motif and the user interface
incorporates ActiveX controls or ListView/TreeView widgets.
CAUSE:
Basically what is happening is that in rare circumstances Forte may invoke
a
nested copy of the interpreter while the first interpreter has yielded.
This
is not a problem in and of itself, but in the case where the original
interpreter was in the middle of a repository fetch when it yielded, and
the second interpreter needs to fetch code as well, we will get one of the
errors listed above, depending on the exact timing. The reason for the
errors is that the repository code at this level is thread-safe but not
re-entrant. It is protected by a mutex that is already owned by the
current task. Which, given the scenario outlined here, where the two
interpreters are running inside of the same task, results in the nested
interpreter being allowed to change data out from under the first.
While for every fetch one or more calls to WindowSystem.Yield will be made
(this is there to prevent the semblance of system lock-up on Win 3.1,
where
Yield is the only way other applications can be allowed to run), there is
a parameter which controls how often to actually yield, which by default
is
set to one out of every 100 calls. This is the reason the problem is
intermittent--you need a yield to occur during a repository fetch
which starts another interpreter which also needs to fetch code from
disk.
The reason this has only surfaced recently is that the nested interpreter
scenario can only happen in 2 cases that we know of:
- ActiveX controls which respond to events/Windows messages
- Outline fields/ListViews with column(s) mapped to virtual
attributes
In all other normal cases, the yield can process the message (typically a
paint message) without starting another interpreter, so regardless of
whether
the first interpreter yielded during a repository operation or not, there
is
no conflict.
SOLUTION:
The workaround is to prevent yields altogether by setting the
FORTE_YIELD_THROTTLE environment variable equal to 0 in the client's
environment. This should have no detrimental effects since the yield code
is in place solely for Windows 3.1x clients.
ERROR STACK 1
SYSTEM ERROR: Because of a prior error, your workspace was set to
read-only to
prevent the application from attempting to write to the repository. The
repository and work you have saved to the repository are safe. If your
workspace
contains unsaved work, you may use the following procedure to save this
work.
First, export the changed components. Then, shut down and restart this
application and reopen this workspace in read-write mode. Finally, import
the
changed components and save your workspace.
Class: qqrp_RepResourceException
Error #: [1101, 695]
Detected at: qqrp_Session::GetObjectById
Last TOOL statement: method EFWindowController.EFEventLoop
Error Time: Tue Nov 18 15:58:47
Exception occurred (locally) on partition "ConPlus_GUI_cl0_Client",
(partitionId = 7EFAE060-4AFA-11D1-A1C1-1FDC8A99AA77:0x446:0x1,
taskId =
[7EFAE060-4AFA-11D1-A1C1-1FDC8A99AA77:0x446:0x1.23]) in application
"ConPlus_GUI_cl0", pid 147 on node ISD060 in environment EdgeTest.
The remainder of the Error Manager stack is:
SYSTEM ERROR: Internal Error attempting to deserialize element (64,67470)
(fetch
bitmask is 0x20). Your workspace is now read-only to prevent the
application
from attempting to write to the repository. The repository and work you
have
saved to the repository are safe. If your workspace contains unsaved work,
you
may use the following procedure to save this work. First, export the
changed
components. Then, shut down and restart this application and reopen this
workspace in read-write mode. Finally, import the changed components and
save
your workspace.
Class: qqrp_RepResourceException
Error #: [1101, 61]
Detected at: qqrp_LogicalSession::MaterializeObject
Last TOOL statement: method EFTabManagerNew.EFNoteBookHandler
Error Time: Tue Nov 18 15:58:47
Exception occurred (locally) on partition "ConPlus_GUI_cl0_Client",
(partitionId = 7EFAE060-4AFA-11D1-A1C1-1FDC8A99AA77:0x446:0x1,
taskId =
[7EFAE060-4AFA-11D1-A1C1-1FDC8A99AA77:0x446:0x1.23]) in application
"ConPlus_GUI_cl0", pid 147 on node ISD060 in environment EdgeTest.
SYSTEM ERROR: Unknown Mark type in deserialization.
Class: qqsp_ImplementationException
Error #: [1101, 34]
Detected at: qqrp_DeSerializeObject::ProcessHdr
Error Time: Tue Nov 18 15:58:47
Exception occurred (locally) on partition "ConPlus_GUI_cl0_Client",
(partitionId = 7EFAE060-4AFA-11D1-A1C1-1FDC8A99AA77:0x446:0x1,
taskId =
[7EFAE060-4AFA-11D1-A1C1-1FDC8A99AA77:0x446:0x1.23]) in application
"ConPlus_GUI_cl0", pid 147 on node ISD060 in environment EdgeTest.
ERROR STACK 2
SYSTEM ERROR: A serious error has occurred in Repository
(c:\PROGRA~1\CSSPTEST\conplu0). Corrective action may be necessary.
Notify
your repository administrator.
Class: qqsp_ImplementationException
Error #: [1101, 198]
Detected at: qqrp_Repository::Fetch
Last TOOL statement: method
SalesDevelopment_NWC.DEVNotifyofTabSetCurrent
Error Time: Wed Dec 03 10:27:22
Exception occurred (locally) on partition "ConPlus_GUI_cl0_Client",
(partitionId = 769D4310-6B88-11D1-84FD-65BF87C8AA77:0x121:0x1,
taskId =
[769D4310-6B88-11D1-84FD-65BF87C8AA77:0x121:0x1.22]) in application
"ConPlus_GUI_cl0", pid 172 on node ISD42 in environment Edge.
SYSTEM ERROR: Could not read record (64,74615) from repository data file.
Header is corrupt.
Class: qqsp_ImplementationException
Error #: [1106, 612]
Detected at: qqbt_BtreeAccess::FetchDataFileRecord
Error Time: Wed Dec 03 10:27:22
Exception occurred (locally) on partition "ConPlus_GUI_cl0_Client",
(partitionId = 769D4310-6B88-11D1-84FD-65BF87C8AA77:0x121:0x1,
taskId =
[769D4310-6B88-11D1-84FD-65BF87C8AA77:0x121:0x1.22]) in application
"ConPlus_GUI_cl0", pid 172 on node ISD42 in environment Edge.
Technote 11225 Don't reparent mapped Widgets between UserWindows at
runtime
It is sometimes tempting to unparent a widget from one UserWindow and
reparent
it into another at runtime. However, this can cause crashes if the widget
(or
its decendants) are "mapped" to data. Here's why...
Suppose you have two UserWindows, UW1 and UW2. UW1 contains a DataField
(DF1)
which is mapped to a TextData. UW2 contains a RadioList (RL2) which is
mapped to
a scalar Integer. At compile time, every mapped attribute is internally
assigned
a "Map ID" (a small integer) which is used to tie the Widget to its
corresponding attribute. These Map IDs are used by the Widget to look up a
pointer to their data in a "Map" which is maintained by the UserWindow.
Each
UserWindow is assumed be to independent of the others, so there is nothing
wrong
with Widgets in different UserWindows being assigned the same Map IDs.
In
this
case, let's assume that DF1 and RL2 both got assigned the same Map ID of
3. No
problem so far, since each lives in a separate UserWindow with a separate
map.
Now suppose at runtime the application "detaches" or unparents DF1 from
its
UserWindow and reparents it somewhere into UW2. When it comes time for DF1
to
paint itself the Display System it must ask the Runtime System for the
value of
DF1's mapped attribute. To do that it says "give me the value of the
TextData
for DF1. You'll find it in the Map for this UserWindow (UW1), and its Map
ID is
3". When the runtime system goes to do this it expects to find a TextData
in
this "slot" of the map, but instead it picks up the integer which is
mapped to
RL2. At best this leads to bad data being returned; more likely you get a
segfault and a crash.
If DF1 was not a mapped attribute (say, a Rectangle) there would be no
problem
because there is no data mapped to a Rectangle. If instead of moving DF1
you
created a brand new DataField on the fly there would be no problem,
because the
dynamic DataField would not have any Map ID and so couldn't conflict with
any
IDs in UW2.
So how do you solve this problem? This is exactly what Nested Windows are
all
about. While you can't move DF1 into the middle of UW2, you can nest
UW1.
This
works because UW1 brings its map with it, and when you access DF1 it knows
to
look up its value in UW1's map.
UserWindows are intended to be the "unit of compilabilty" that can be
nested
inside other UserWindows. It is dangerous to "transplant" anything from
inside
one UserWindow into another at runtime.
(Note that you can't avoid this problem by cloning DF1 because the MapID
gets
copied along with it, and the clone will fail in the same way.)
Further details explained in related technote 12448 'Sudden client
partition
crashes at runtime.'
Technote 12448 Sudden client partition crashes at runtime
Scenario : You have two UserWindows, A and B. When Window A starts up, it
instantiates an instance of B and reparents some component of B into A's
window
hierarchy.
This is not allowed and almost always leads to an error at best or at
worse a
segmentation fault.
Here's why :
When you compile a UserWindow in Forte, each "mapped attribute" (whether a
form
element or menu element) is assigned an internal ID which represents an
offset into
that UserWindow's table of mapped attributes. This offset is only valid
in the
context of the UserWindow in which it was compiled. If you detach a
FieldWidget or
MenuWidget from one compiled Window ("tmpMenu" for example) and then
parent
into another compiled window ("tmpWindow") the internal ID comes with it.
When Forte tries to make use of that copied widget it uses the ID as an
offset
into tmpWindow's table of mapped attributes. But that copied offset is
meaningless in the context of tmpWindow's table, so you get some kind off
error.
In this case it found that the data type of the variable in the slot
wasn't
what
was expected. But you might even index off the end of the table and get a
segmentation fault.
There is nothing to prevent you from dynamically creating menu items and
adding
them to a window at runtime; that will work fine. Although of course you
can't
access them via mapped attributes, since those can only be created at
compile time.
But you are not allowed to reparent a widget from one compiled UserWindow
into
the hierarchy of another.
More information may be found in technote 11225 'Don't reparent mapped
Widgets
between UserWindows at runtime'.
Possible errorstacks seen at runtime instead of a complete crash or
segmentation
violation while you are illegally reparenting a widget or menuitem between
windows
at runtime:
Map::SetSubjectData: Invalid conversion from map type 0 to subject type 22
SYSTEM ERROR: Bad parameter at location 3 in method
qqrt_MapClassAccess::ProcessSubjectData.
Class: qqsp_Exception
Error #: [1001, 381]
Detected at: qqrt_MapClassAccess::ProcessSubjectData at 3
Error Time: Wed Aug 09 13:03:57
Exception occurred (locally) on partition "testproject_CL0_Client",
(partitionId = D4914A10-36C1-11D4-91B3-419AA33BAA77:0x208:0xd,
taskId =
[D4914A10-36C1-11D4-91B3-419AA33BAA77:0x208:0xd.68]) in application
"FTLaunch_cl0", pid 672 on node ONEWAY in environment Audi3M2Env.
At 13:14 26.09.00 -0400, Adamek, Zenon wrote:
Hi,
It is the unfixed defect 53398. Please contact Forte support.
Zenon
-----Original Message-----
From: Brenda Cumming [SMTP:brenda_cummingtranscanada.com]
Sent: Tuesday, September 26, 2000 1:15 PM
To: Forte User group
Subject: (forte-users) 3J=>3M new to me error
Hi,
We are in the process of going from 3J1 to 3.0.M.2, and I am getting
this error that I am unfamiliar with on a GUI that works fine in 3J.
It
does not happen all the time, and I have been unable to establish the
pattern that kicks it off. Has anyone seen this before?
PS- this error is not occurring in the deployed (non-compiled) app,but
when I am running locally from my workspace.
SYSTEM ERROR: Bad parameter at location 6 in method
qqrt_MapClassAccess::ProcessSubjectData.
Class: qqsp_Exception
Error #: [1001, 381]
Detected at: qqrt_MapClassAccess::ProcessSubjectData at 6
Error Time: Wed Sep 20 14:32:54
Exception occurred (locally) on partition
"ABSDevtStartUp_CL0_Client",
(partitionId = 36172000-5DA8-11D4-B1F0-14015EDAAA77:0x2da:0x2,
taskId =
[36172000-5DA8-11D4-B1F0-14015EDAAA77:0x2da:0x2.25]) in
application
"Forte_cl0", pid 93 on node T5621 in environment AbisDMEnv.
SYSTEM ERROR: Can't find scope 20070 for a class.
Class: qqsp_Exception
Error #: [201, 11]
Detected at: qqlo_ClassTableLoadScope at 1
Error Time: Wed Sep 20 14:32:54
Exception occurred (locally) on partition"ABSDevtStartUp_CL0_Client",
(partitionId = 36172000-5DA8-11D4-B1F0-14015EDAAA77:0x2da:0x2, taskId =
[36172000-5DA8-11D4-B1F0-14015EDAAA77:0x2da:0x2.25]) in
application
"Forte_cl0", pid 93 on node T5621 in environment AbisDMEnv.
SYSTEM ERROR: Because of a prior error, your workspace was set to
read-only to prevent the application from attempting to write to the repository.
The repository and work you have saved to the repository are safe. If
your
workspace contains unsaved work, you may use the following procedure
to save this work. First, export the changed components. Then, shut down and
restart this application and reopen this workspace in read-write mode.
Finally, import the changed components and save your workspace.
Class: qqrp_RepResourceException
Error #: [1101, 695]
Detected at: qqrp_Session::IsDistributed
Last TOOL statement: method PPMeasWin.
Error Time: Wed Sep 20 14:32:54
Exception occurred (locally) on partition
"ABSDevtStartUp_CL0_Client",
(partitionId = 36172000-5DA8-11D4-B1F0-14015EDAAA77:0x2da:0x2, taskId =
[36172000-5DA8-11D4-B1F0-14015EDAAA77:0x2da:0x2.25]) in
application
"Forte_cl0", pid 93 on node T5621 in environment AbisDMEnv.
SYSTEM ERROR: Internal Error attempting to deserialize element
(64,120684) (fetch bitmask is 0x20). Your workspace is now read-onlyto
prevent
the application from attempting to write to the repository. The
repository
and work you have saved to the repository are safe. If your workspace
contains unsaved work, you may use the following procedure to savethis
work.
First, export the changed components. Then, shut down and restart this
application and reopen this workspace in read-write mode. Finally, import the
changed components and save your workspace.
Class: qqrp_RepResourceException
Error #: [1101, 61]
Detected at: qqrp_LogicalSession::MaterializeObject
Error Time: Wed Sep 20 14:32:54
Exception occurred (locally) on partition
"ABSDevtStartUp_CL0_Client",
(partitionId = 36172000-5DA8-11D4-B1F0-14015EDAAA77:0x2da:0x2, taskId =
[36172000-5DA8-11D4-B1F0-14015EDAAA77:0x2da:0x2.25]) in
application
"Forte_cl0", pid 93 on node T5621 in environment AbisDMEnv.
SYSTEM ERROR: Recursive Deserialization attempted, Internal Error!
Class: qqsp_UsageException with ReasonCode: SP_ER_INVALIDSTATE
Error #: [301, 231]
Detected at: qqsp_DeSerializeDriver::Run at 1
Error Time: Wed Sep 20 14:32:54
Exception occurred (locally) on partition"ABSDevtStartUp_CL0_Client",
(partitionId = 36172000-5DA8-11D4-B1F0-14015EDAAA77:0x2da:0x2, taskId =
[36172000-5DA8-11D4-B1F0-14015EDAAA77:0x2da:0x2.25]) in
application
"Forte_cl0", pid 93 on node T5621 in environment AbisDMEnv.
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Re: (forte-users) access violation caught in debugmode

Eric,
There has been a problem with Forte debug mode for sometime now when the app
is silent. If you attempt to inspect the variables when the app is in the
'silent' mode, i.e., waiting on an event loop for a user input or a system
event, then you get the "Access violation caught ..." exception message and
the workspace including the launch server crashes.
If you are getting this problem in the 'step-through' mode, you should look
at the lauch server immediately after you get the exception before
everything disappears. There could be a stack backtrace due to some illegal
reference. We have faced a similar situation before but the error appeared
both in the 'debug' and 'run' modes.
Hope this helps.
Braja K Chattaraj.
From: Eric Decossaux <[email protected]>
To: forte mailing <[email protected]>
Subject: (forte-users) access violation caught in debug mode
Date: Thu, 23 Sep 1999 17:31:39 +0200
Hello,
I have a problem using Forte in debug mode. If I run my program on my NT
machine from the partition workshop (distributed run), the program works
fine except that some object does not display what I'm expecting. So I
want to use the debug mode to inspect the objets of this window. When I
choose the "local variables" option to see the content of my window, I
have a "access violation caught" and forte disappears. If I just let my
program run without choosing this option, everything is the same than
with the distributed run.
Does somebody have an idea what to look for ? I really want to look the
inside the attributes of this window.
We recently upgraded from release 30G2 to release 30L2. Could it be the
problem ?
Eric Decossaux
Cliniques Universitaires St Luc
Informatique des Laboratoires
av Hippocrate 10 / 1730
1200 Bruxelles
+32+2+764 17 53
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Eric,
Another possibility has to do with the repository. You said you recently
migrated 30G2 to release 30L2.
Many strange problems have been traced to release migrations with old
repositories. If the repository was properly migrated another thing you can try
is to export the project(s) to PEX files, delete them from the repository, and
then re-import. I know this can be time consuming but I have solved more than
one unexplained problem in the IDE by doing it.
---------------------- Forwarded by Charlie Shell/Bsg/MetLife/US on 09/23/99
01:19 PM ---------------------------
"Ajith Kallambella" <[email protected]> on 09/23/99 12:08:54 PM
To: [email protected], [email protected]
cc: (bcc: Charlie Shell/Bsg/MetLife/US)
Subject: Re: (forte-users) access violation caught in debug mode
Eric,
Sometimes( 90% ) you can solve this problem by
checking out the class that is causing the crash
and force-compiling it.
If it doesn't help, run through this checklist.
1. Do you have enough memory resources.?
2. Is the object you are inspecting held in a lock ?
( mutex, transaction lock etc )
3. Does it work when you wait for sometime at the
breakpoint before inspecting the values? I mean
are you interrupting some process thread?
4. Does it work if you log the attributes using logmgr?
5. Are you using any call-outs/call-ins? Any external
systems integration? Sometimes( for reasons beyond
my comprehension ) the objects allocated outside
Forte gets corrupted when its passed back and forth.
6. ...finally...Santa Clause, help me!
Ajith Kallambella M.
Forte Systems Consultant.
From: Eric Decossaux <[email protected]>
To: forte mailing <[email protected]>
Subject: (forte-users) access violation caught in debug mode
Date: Thu, 23 Sep 1999 17:31:39 +0200
Hello,
I have a problem using Forte in debug mode. If I run my program on my NT
machine from the partition workshop (distributed run), the program works
fine except that some object does not display what I'm expecting. So I
want to use the debug mode to inspect the objets of this window. When I
choose the "local variables" option to see the content of my window, I
have a "access violation caught" and forte disappears. If I just let my
program run without choosing this option, everything is the same than
with the distributed run.
Does somebody have an idea what to look for ? I really want to look the
inside the attributes of this window.
We recently upgraded from release 30G2 to release 30L2. Could it be the
problem ?
Eric Decossaux
Cliniques Universitaires St Luc
Informatique des Laboratoires
av Hippocrate 10 / 1730
1200 Bruxelles
+32+2+764 17 53
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Re: (forte-users) XML/HTTP clients

Hi,
As much as I know, DS Data Systems has done a Java client using http with Web
Enterprise (from Web Designer). They have called it JDesigner (it was showed at
the Forte Forum of San Francisco in May). I have myself experienced the use of
External connections to make performance testings on Web Enterprise last
summer. I used a Forte Client http to make an injector on port 80. It worked
very well.
For DHTML, I'm actually testing some solutions for "Outline field" and "menus".
It works... It costs 8-10 ko for each script. But, it is really not easy to
debug, to maintain, and you need different codes for each brower! Netscape is
really unstable also. This may not be applicable with release 3 of IE and NS.
You can find some good code samples on http://www.webreference.com/dhtml/
But, it may be a good solution for Intranet and it should be possible to
generate menus and outline from the HttpScanner as it is for DropLists for
instance.
Hope this helps,
Daniel Nguyen
Freelance Forte Consultant
http://perso.club-internet.fr/dnguyen/
Thomas Mercer-Hursh, Ph.D. a écrit:
Does anyone out there have any experience, experimental or production, with
using XML over HTTP instead of IIOP to communicate with non-Forte clients
from R3 server components? If so, any pointers? Performance issues?
Special problems? Recommendations?
How about with using DHTML for the client compared to say Java?
TIA
=========================================================================
Thomas Mercer-Hursh, Ph.D email: [email protected]
Computing Integrity, Inc. sales: 510-233-9329
550 Casey Drive - Cypress Point support: 510-233-9327
Point Richmond, CA 94801-3751 fax: 510-233-6950
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You can also use the HTTP-DC project.... You don't
need Web Enterprise for this. From what I can tell,
this is available in L.x on....
There is api documentation in M.2 (with scant
examples.)
There's a special process to put the project in your
repository (it isn't installed in the repository in
the standard install,) the documentation in M.2
(probably in M.0 too, AFAIK) that tells you how to do
this (look for HTTP-DC in the online help.)
I haven't done much with it yet, I've just installed
it. If anybody out there has examples, that'd be
great. I'll try to contribute more the moment I get a
chance to explore it....
Christopher Fury
BellSouth Communications Systems
--- Daniel Nguyen <dnguyenclub-internet.fr> wrote:
Hi,
If you have Web Enterprise, you can user
HttpAccess.SendRequest().
Hope this helps,
Daniel Nguyen
Freelance Forte Consultant
Amin, Kamran a écrit:
Is there any way to make a HTTP request from TOOLto another HTTP Service?
thanks in advance.
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RE: (forte-users) Forte not letting go of Oracle connections+ RE: (fort

The bug was just reported yesterday so they might not have it available to
the public for a while. I am guessing this bug has been around since 3.M.?
and its very easy to verify it if its happening in your environment. Also I
have been talking to other user that are not using Oracle (Sybase instead)
who are also seen the same problem. I think this is a problem across all
database because there is some fundamental event or process that is not
taking place to close database connections. But just to be safe verify it
in your test environment before moving to 3.5. To verify if its happening
in your Forte version just create a small application that connects to the
database and run it in debug mode. Log into the database and then stop the
debug session. The connection will still be open. This will also occur
when you use the running man or in a deployed application.
ka
-----Original Message-----
From: Labeaux Schiek [mailto:DHSV017dhs.state.il.us]
Sent: Thursday, March 01, 2001 7:21 AM
To: kamran.aminlendware.com; Forte-userslists.xpedior.com
Subject: RE: (forte-users) Forte not letting go of Oracle connections +
RE: (forte-users) SQL Server Maximum DB Processes already allocated.
Hi Kamran,
I just looked up bug # 54610 in Cyber Support and it is not there yet, so a
question.
In your opinion, does this effect all databases? We are using DB2 and
considering going to 3.5 . Are we going to see the same problems you have
had with Oracle?
-thanks
-labeaux
"Amin, Kamran" <kamran.aminlendware.com> 02/28/01 05:28PM >>>Update on my problem. Well now its everybody's problem. Forte has
conformed the bug. Bug number 54610 for your reference.
thanks to everybody for the help..
ka
For the archives, go to: http://lists.xpedior.com/forte-users and use
the login: forte and the password: archive. To unsubscribe, send in a new
email the word: 'Unsubscribe' to: forte-users-requestlists.xpedior.com

The bug was just reported yesterday so they might not have it available to
the public for a while. I am guessing this bug has been around since 3.M.?
and its very easy to verify it if its happening in your environment. Also I
have been talking to other user that are not using Oracle (Sybase instead)
who are also seen the same problem. I think this is a problem across all
database because there is some fundamental event or process that is not
taking place to close database connections. But just to be safe verify it
in your test environment before moving to 3.5. To verify if its happening
in your Forte version just create a small application that connects to the
database and run it in debug mode. Log into the database and then stop the
debug session. The connection will still be open. This will also occur
when you use the running man or in a deployed application.
ka
-----Original Message-----
From: Labeaux Schiek [mailto:DHSV017dhs.state.il.us]
Sent: Thursday, March 01, 2001 7:21 AM
To: kamran.aminlendware.com; Forte-userslists.xpedior.com
Subject: RE: (forte-users) Forte not letting go of Oracle connections +
RE: (forte-users) SQL Server Maximum DB Processes already allocated.
Hi Kamran,
I just looked up bug # 54610 in Cyber Support and it is not there yet, so a
question.
In your opinion, does this effect all databases? We are using DB2 and
considering going to 3.5 . Are we going to see the same problems you have
had with Oracle?
-thanks
-labeaux
"Amin, Kamran" <kamran.aminlendware.com> 02/28/01 05:28PM >>>Update on my problem. Well now its everybody's problem. Forte has
conformed the bug. Bug number 54610 for your reference.
thanks to everybody for the help..
ka
For the archives, go to: http://lists.xpedior.com/forte-users and use
the login: forte and the password: archive. To unsubscribe, send in a new
email the word: 'Unsubscribe' to: forte-users-requestlists.xpedior.com

RE: (forte-users) Events in Interface

I know, I've implemented similar structures in other locations as well,
always without problems. I've even recreated the whole interface, building
it completely from dragging and dropping methods and events from the class
to the interface. Then I did a force compile of the whole workspace. It
still doesn't solve the problem. There must be some combination of things
that were different in the other circumstances, but I don't seem to be able
to find it. It's definately not an error in the code. There something wrong
in Forte internally, but I don't know which combination of factors causes
it.
Pascal Rottier
Atos Origin Nederland (BAS/West End User Computing)
Tel. +31 (0)10-2661223
Fax. +31 (0)10-2661199
E-mail: Pascal.Rottiernl.origin-it.com
++++++++++++++++++++++++++++
Philip Morris (Afd. MIS)
Tel. +31 (0)164-295149
Fax. +31 (0)164-294444
E-mail: Rottier.Pascalpmintl.ch
-----Original Message-----
From: Moris_Mihaildis/AUST/CSCcsc.com
[mailto:Moris_Mihaildis/AUST/CSCcsc.com]
Sent: Tuesday, April 03, 2001 5:00 AM
To: Rottier, Pascal
Cc: forte-userslists.xpedior.com
Subject: Re: (forte-users) Events in Interface
FYI. We are using Forte 3.0.J.4 and NT4.0 SP6, and have had no problems
implementing your pattern.
There should be no need for a fix (cast). There is something wrong with
your interface.
Regards,
Moris Mihailidis
Consulting
CSC
Level 4, 570 St. Kilda Road, Melbourne VIC 3004
Ph: 61-3-95364675 Fax: 61-3-95364633 Email: mmihailicsc.com.au
"Rottier, Pascal" <Rottier.Pascalpmintl.ch> on 04/02/2001 09:52:46 PM
To: "'Forte Users'" <forte-userslists.xpedior.com>
cc:
Subject: (forte-users) Events in Interface
We have the following scenario:
There is a Service Object that acts as a Facade (Facade pattern) for 3
manager classes that implement some business functions. Each of these three
managers are stored as private attributes on this Service Object.
For the sake of flexibility, these three private attributes are defined by
their Interface, not their class. When the Service Object opens an Event
Loop and registers for the events of one of these interfaces, the whole
partition crashes. Even when using the running man in the development
workshop, the whole partition crashes. The only way to fix that is to cast
the Interface to a class that implements the interface before registering
for the event.
I know it's possible to register for events using an Interface that
contains
these events, rather then a class that implements the events. Of course, at
runtime you do need a real instance of a class that implements the
interface, otherwise you get a NIL-exception.
Does anyone have any experience registering for events from Interfaces? Are
there unexpected circumstances where it should work semantically, but still
causes Forte to crash. We're using Forte 3.j.1 on NT 4.0 SP 6.
Any help is appreciated.
Pascal Rottier
Atos Origin Nederland (BAS/West End User Computing)
Tel. +31 (0)10-2661223
Fax. +31 (0)10-2661199
E-mail: Pascal.Rottiernl.origin-it.com
++++++++++++++++++++++++++++
Philip Morris (Afd. MIS)
Tel. +31 (0)164-295149
Fax. +31 (0)164-294444
E-mail: Rottier.Pascalpmintl.ch
For the archives, go to: http://lists.xpedior.com/forte-users and use
the login: forte and the password: archive. To unsubscribe, send in a new
email the word: 'Unsubscribe' to: forte-users-requestlists.xpedior.com

I know, I've implemented similar structures in other locations as well,
always without problems. I've even recreated the whole interface, building
it completely from dragging and dropping methods and events from the class
to the interface. Then I did a force compile of the whole workspace. It
still doesn't solve the problem. There must be some combination of things
that were different in the other circumstances, but I don't seem to be able
to find it. It's definately not an error in the code. There something wrong
in Forte internally, but I don't know which combination of factors causes
it.
Pascal Rottier
Atos Origin Nederland (BAS/West End User Computing)
Tel. +31 (0)10-2661223
Fax. +31 (0)10-2661199
E-mail: Pascal.Rottiernl.origin-it.com
++++++++++++++++++++++++++++
Philip Morris (Afd. MIS)
Tel. +31 (0)164-295149
Fax. +31 (0)164-294444
E-mail: Rottier.Pascalpmintl.ch
-----Original Message-----
From: Moris_Mihaildis/AUST/CSCcsc.com
[mailto:Moris_Mihaildis/AUST/CSCcsc.com]
Sent: Tuesday, April 03, 2001 5:00 AM
To: Rottier, Pascal
Cc: forte-userslists.xpedior.com
Subject: Re: (forte-users) Events in Interface
FYI. We are using Forte 3.0.J.4 and NT4.0 SP6, and have had no problems
implementing your pattern.
There should be no need for a fix (cast). There is something wrong with
your interface.
Regards,
Moris Mihailidis
Consulting
CSC
Level 4, 570 St. Kilda Road, Melbourne VIC 3004
Ph: 61-3-95364675 Fax: 61-3-95364633 Email: mmihailicsc.com.au
"Rottier, Pascal" <Rottier.Pascalpmintl.ch> on 04/02/2001 09:52:46 PM
To: "'Forte Users'" <forte-userslists.xpedior.com>
cc:
Subject: (forte-users) Events in Interface
We have the following scenario:
There is a Service Object that acts as a Facade (Facade pattern) for 3
manager classes that implement some business functions. Each of these three
managers are stored as private attributes on this Service Object.
For the sake of flexibility, these three private attributes are defined by
their Interface, not their class. When the Service Object opens an Event
Loop and registers for the events of one of these interfaces, the whole
partition crashes. Even when using the running man in the development
workshop, the whole partition crashes. The only way to fix that is to cast
the Interface to a class that implements the interface before registering
for the event.
I know it's possible to register for events using an Interface that
contains
these events, rather then a class that implements the events. Of course, at
runtime you do need a real instance of a class that implements the
interface, otherwise you get a NIL-exception.
Does anyone have any experience registering for events from Interfaces? Are
there unexpected circumstances where it should work semantically, but still
causes Forte to crash. We're using Forte 3.j.1 on NT 4.0 SP 6.
Any help is appreciated.
Pascal Rottier
Atos Origin Nederland (BAS/West End User Computing)
Tel. +31 (0)10-2661223
Fax. +31 (0)10-2661199
E-mail: Pascal.Rottiernl.origin-it.com
++++++++++++++++++++++++++++
Philip Morris (Afd. MIS)
Tel. +31 (0)164-295149
Fax. +31 (0)164-294444
E-mail: Rottier.Pascalpmintl.ch
For the archives, go to: http://lists.xpedior.com/forte-users and use
the login: forte and the password: archive. To unsubscribe, send in a new
email the word: 'Unsubscribe' to: forte-users-requestlists.xpedior.com

RE: (forte-users) Accelerator keys under MS Windows95/98/NT

This message is in MIME format. Since your mail reader does not understand
this format, some or all of this message may not be legible.
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Content-Type: text/plain
Unfortunately, ALT key is not recognized as a validkey modifier on Windows
That isn't entirely true. The ALT key is recognized. I've used it
successfully
under Windows 95 and NT. The only annoying side-effect is that you get the
standard operating system beep when you perform the keypress.
-----Original Message-----
From: "Ajith Kallambella" [SMTP:[email protected]]
Sent: Thursday, August 26, 1999 1:43 PM
To: "[email protected]" [SMTP:[email protected]];
"[email protected]" [SMTP:[email protected]]
Subject: Re: (forte-users) Accelerator keys under MS Windows 95/98/NT
The Window class has a method named SetAsFunctionKey
and an event named FunctionKeyPress. When used
in combination, the former can be used to configure
various accelerator keys for the window widgets
and the latter can be used to trap them.
For more details, take a look at Forte online help.
Unfortunately, ALT key is not recognized as a valid
key modifier on Windows, but is only available on
Unix and VMS - for reasons beyond my comprehension :(
Hope this helps
Ajith Kallambella M.
Forte Systems Consultant.
From: "Burns, Troy" <[email protected]>
To: "'[email protected]'" <[email protected]>
Subject: (forte-users) Accelerator keys under MS Windows 95/98/NT
Date: Thu, 26 Aug 1999 13:56:07 -0400
Let's say I have a pushbutton on a window and I've given it
label text of "&Search". In past developer-lives, the ampersand
is what gives the button the ability to respond to ALT-S. This
doesn't appear to be the case in Forte. What do I need to do
to make this work?
Thanks in advance,
Troy Burns
E-mail: [email protected]
Marriott Vacation Club International
941-688-7700 ext. 4408
For the archives, go to: http://lists.sageit.com/forte-users and use
the login: forte and the password: archive. To unsubscribe, send in a new
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charset=3Dus-ascii">
<DEFANGED-META NAME=3D"Generator" CONTENT=3D"MS Exchange Server version =
5.5.2448.0">
<DEFANGED-TITLE>RE: (forte-users) Accelerator keys under MS Windows =
95/98/NT</TITLE>
</HEAD>
<BODY>
> Unfortunately, ALT key is not recognized as a =
valid
 key modifier on Windows

That isn't entirely true. The ALT key is recognized. =
I've used it successfully
 under Windows 95 and NT. The only annoying =
side-effect is that you get the
 standard operating system beep when you perform the =
keypress.

-----Original Message-----
 From: "Ajith Kallambella" =
[SMTP:[email protected]] 
 Sent: Thursday, August 26, 1999 1:43 PM
 To: "[email protected]" =
[SMTP:[email protected]];
 "[email protected]" =
[SMTP:[email protected]]
 Subject: Re: (forte-users) Accelerator keys under MS =
Windows 95/98/NT

 
The Window class has a method named =
SetAsFunctionKey
 and an event named FunctionKeyPress. When =
used
 in combination, the former can be used to =
configure
 various accelerator keys for the window =
widgets
 and the latter can be used to trap them.

For more details, take a look at Forte online =
help.

Unfortunately, ALT key is not recognized as a =
valid
 key modifier on Windows, but is only available =
on
 Unix and VMS - for reasons beyond my comprehension =
:(

Hope this helps

Ajith Kallambella M.
 Forte Systems Consultant.

 
>From: "Burns, Troy" =
<[email protected]>
 >To: "'[email protected]'" =
<[email protected]>
 >Subject: (forte-users) Accelerator keys under MS =
Windows 95/98/NT
 >Date: Thu, 26 Aug 1999 13:56:07 -0400
 >
 >Let's say I have a pushbutton on a window and =
I've given it
 >label text of "&Search". In =
past developer-lives, the ampersand
 >is what gives the button the ability to respond =
to ALT-S. This
 >doesn't appear to be the case in Forte. =
What do I need to do
 >to make this work?
 >
 >Thanks in advance,
 >
 >---------------------------------------------
 >Troy Burns
 >E-mail: [email protected]
 >Marriott Vacation Club International
 >941-688-7700 ext. 4408
 >
 >--
 >For the archives, go to: <A =
HREF=3D"<a href=
"http://lists.sageit.com/forte-users">http://lists.sageit.com/forte-users</a>" =
TARGET=3D"_blank">http://lists.sageit.com/forte-users</A> and =
use
 >the login: forte and the password: archive. To =
unsubscribe, send in a new
 >email the word: 'Unsubscribe' to: =
[email protected]
 >

 
_______________________________________________________________=

 Get Free Email and Do More On The Web. Visit <A =
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Hi,Beau Leo, I am having problem installing Oracle9i Database Rel.2 on my pc.
I read the suggestion and solution you posted for fixing Oracle 8.1.x installation
probblem, and since my pc also hung at 48% while installing Oracle 9i software,
I wonder if the same problem in the Oracle8 Vs.Pentium4 also exists for Oracle9i.
I have Windows2000,256RAM, Pentium3 1Ghz, and 13.8 free diskspace. But the installation always
hangs at 48%, my computer will just shut down and restart automatically without
even showing an error message. I have tried installing the Enterprise edition for 3
times already but everytime encountered the same problem. I've also tried custom installation
by selecting not to create database, but it also hung.
Before I started each installation, I always made sure that my registry and environment
path are cleared and that all the partially-installed Oracle files are deleted.
I hope that you or anyone who has a solution for this problem could be so kindly to help me out.
Thank you in advance.
ailee

RE: (forte-users) Phantom Nodes

Yes both the client and server have to have the same setting and it does not
work all the time.
-----Original Message-----
From: Samer Kanjo [mailto:[email protected]]
Sent: Thursday, May 10, 2001 11:33 PM
To: Amin, Kamran; Forte Users
Subject: RE: (forte-users) Phantom Nodes
Kamran,
Just so I am clear on the use of keep alive settings,
the settings are required on both the server and the
client, correct? If so then should the settings on
both client and server nodes be equal?
Again to be clear, are you saying that the keep alive
settings alone will prevent phantom nodes?
Kelsey & Pascal, do you still have the problem even
though you are using keep alive settings?
Samer Kanjo
--- "Amin, Kamran" <[email protected]> wrote:
The socket time is an OS level setting and is
different on each OS. I had
open up a ticket with Forte 2 years ago and the only
quick solution was to
change the name of the client computer which faked
Forte into thinking its a
different node. This way the client was able to get
back into their
application quickly. The only problem was that the
clients had to reboot
their computer. The other way to prevent this was
to use the keep alive
settings to force a clean up on the Forte central
environment side.
ka
-----Original Message-----
From: Samer Kanjo [mailto:[email protected]]
Sent: Thursday, May 10, 2001 6:26 PM
To: [email protected]; Forte Users
Subject: RE: (forte-users) Phantom Nodes
Kelsey,
We use model nodes exclusively. Occasionally, a
client
node would crash and would be inaccessbile for two
hours but would still appear active under the model
node. After two hours the client could access the
environment again. My only option thus far has been
to
bounce the environment but that can only be done
after
work hours, which may not be convenient for the
affected user.
Kamran Amin just wrote me to say that the two hour
delay is the result of the default socket timeout
setting on UNIX boxes. Perhaps reducing the socket
timeout from two hours to something more reasonable
would fix the problem without manipulating the
environment configuration.
I am not sure how I would determine a good socket
timeout setting for my application. Does anyone have
any ideas? Is my assumption about reducing the
socket
timeout to avoid manipulating the environment
configuration to remove the phantom nodes in a more
timely fashion correct?
Samer Kanjo
--- [email protected] wrote:
"... have you reported this to Forte as a bug or
looked through the defect
reports?..."
No and No. I just kind of "stumbled" upon this
solution this week. I just
opened the properties windows when it just all ofa
suddened dawned on me:
"Maybe, if none of the boxes are checked then the
node effectively serves
no usefull purpose in the environment. Therefore,
maybe Forte will be more
apt to release it - like the garbage collectordoes
with an object that is
not referenced".
" ... Have you tried this technique when usingmodel
nodes? ..."
No I haven't. So far our model nodes have beenwell
behaved. If a member
was online the node was online, otherwise, if "no
one was home" then it was
off-line. Model nodes aren't real nodes; I viewthem
as a sort of virtual
node. Only real nodes have ocassionally behaved
goofy. I think what happens
is either the user's machine is improperlyshutdown
or they just all of
sudden loose connection to the network. Exception
handling was never Forte
ADE's forte.
Kelsey Petrychyn, P. Eng. SaskTel TechnicalAnalyst
ITM - Technology Solutions - Distributed Computing
Tel (306) 777 - 4906, Fax (306) 359 - 0857
Internet:[email protected]
Quality is not job 1. It is the only job!
Samer Kanjo
<skanjo@yahoo To:
"Forte Users" <[email protected]>
.com> cc:
Subject:
RE: (forte-users) Phantom Nodes
05/10/2001
01:57 PM
Pascal,
This is very inetresting. I have experienced the
same
problem and have noted the mysterious two hourdelay
in getting the client node back up and running. I
thought it may have had something to do with the
keepalive settings, which seem to work otherwise.
Kelsey, have you reported this to Forte as a bugor
looked through the defect reports? Have you tried
this
technique when using model nodes? I will give your
fix
of reconfiguring the node a try the next time I
encounter the problem. However, I use model nodesso
perhaps it may not have the same effect.
Samer Kanjo
--- "Rottier, Pascal" <[email protected]>
wrote:
I've seen this problem many times myself and the
cause was always the same.
The nodemanager of the phantom node was notproperly
shutdown. Usually,
because this node was running on NT and somebody
simply shutdown the
machine. A "kill -9" on unix will also have thesame
effect.
Part of the shutdown process of a node, which
you
should always invoke from
e-console or e-script, is to inform theenvironment
that it's going away.
Then Forte will mark it as offline, rather then
online. However, it the
nodemgr suddenly dies, there is no such signal.
=== message truncated ===

Therefore, how to remotely start a node manager ? :-p
j-p
-----Message d'origine-----
De: John Parks [mailto:jparkss1.com]
Date: vendredi 15 septembre 2000 20:07
À: Jean-Paul.Gabriellisema.fr
Cc: 'Forte Users'
Objet: Re: (forte-users) [Model Nodes] What prevents Server Parts to be
assigned there ?!:?
Jean-Paul,
The ModelNode is a client node by definiton, no matter what properties you
change. I've previously asked for an enhancement to allow a
model node to be a
server node, but I don't expect much to happen. To install
server applications
to several nodes, you have to make sure that the node manager on
each node is
active. There really is no built-in support for distributing
applications in
mass to servers like there is for clients (using the model node feature).
Regards,
John Parks
S1 Corporation
Jean-Paul Gabrielli wrote:
Hi,
I want to have a separate node to provide a dedicated service,
and therefore when I start my environment server and declared that
node as ModelNode, with 'client' disabled, i still can't assign to it
my server partition.
And if I declare it as regular node, the installation of the application
failed if the node is not online.
What choice do I have ?
What prevents that ModelNode, client disabled, to host serverpartition ?!,
j-paul gabrielli
sema dts
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RE: (forte-users) RE: Forte' vs J2EE

Hi Alexandra,
1) Forte 4GL and FJEE (Forte for Jave Enterprise Edition) are tools.
2) TOOL and Java are languages.
3) TOOL is proprietary and Java is public.
4) J2EE is a proposed, Java-based achitecture. Not a tool, not a language,
not a standard.
5) J2EE looks a lot like the architecture already supported by Forte 4GL,
however J2EE is explicetaly based on Java, EJB, JSP, JDBC and Servlets.
There are 3 versions of Forte for Java. The "Consumer Edition (CE)", the
"Internet Edition (IE)" and the "Enterprise Edition (EE)". CE is really a
remake of "NetBeans" and can be downloaded for free. IE and EE do not exist
yet. However, EE should be a remake of SynerJ, Forte's first Java tool.
You quoted someone who was very negative about Forte. I don't think that's
deserved. He's probably someone who simply didn't manage to understand the
tool. However, he is right in complaining about the support of Forte 4GL.
And it's true that the version people are currently using is at least more
than 2 years old and outdated. Since this period, there have been some
bugfixes, but hardly any real improvements.
From the description of your application, I would really advise to use Forte4GL. However, the lack of improvements, new releases, press releases, etc.
has me worried about the future of that product.
One of the real disadvantages of Java is performance. Java is very slow and
requires very heavy hardware to perform acceptably. Swing is a GUI framework
based on Java, which is notoriously slow even by Java standards. FJCE
development GUI is based on Swing. Download this product, install it and run
it and you'll see what I mean.
Forte applications can run in 2 modes. Interpreted or compiled. If they're
compiled, they're turned into platform dependent executables, which perform
really well. If they're interpreted, they're running inside a Forte Virtual
Machine, which performs less well, but still very acceptable. Java
applications run only in Java Virtual Machines and perform far less.
I would use Forte server side and Forte client side. For the browsers, I
would simply use any available tool to build webpages and use CGI to
interface with Forte. I would not try to use a different client side tool
that should communicate to a Forte server side.
Express is a good tool for developing CRUD (Create Read Update Delete)
applications based on an existing, and relatively static, database model. I
don't know about Rapport. However, don't be fooled into believing that
Express makes it easier for unexperienced developers to build Forte
applications. If anything, it makes it harder. A common look and feel can
easily be achieved by agreeing on the look and feel of windows during the
design-phase, and have all developers conform to this standard. It really
isn't that hard. Just don't create very large window class trees. That
causes strange behaviour.
Pascal Rottier
Atos Origin Nederland (BAS/West End User Computing)
Tel. +31 (0)10-2661223
Fax. +31 (0)10-2661199
E-mail: Pascal.Rottiernl.origin-it.com
++++++++++++++++++++++++++++
Philip Morris (Afd. MIS)
Tel. +31 (0)164-295149
Fax. +31 (0)164-294444
E-mail: Rottier.Pascalpmintl.ch
-----Original Message-----
From: Alexandra Macedo [mailto:ammeasysoft.pt]
Sent: Tuesday, December 05, 2000 3:55 PM
To: forte-users
Subject: (forte-users) RE: Forte' vs J2EE
Alexandra I presume.
Excuse me for asking but isn't J2EE just a STANDARD? And Forte aprogramming
language that may or may not adhere to that standard?
Now to the question, if the C++ experience is good - what's wrong withusing
C++?
Do you need to build component based distributed systems? Then hire saytwo
experienced architects - to design a practical model (UML perhaps).
Are there already good systems around you could tailor for your needs?
Just a few questions that need to be addressed to make an informeddecision.
What business are you in (your team/company)? If it's not IT then ask
yourself why do it inhouse?
Regards,
Dirk
PS: What country and from where is the Forte support? You mean peoplecode
in a language other than English?----------------------------------------------------------------------
Well, Forté is certainly not a programming language, TOOL is the
language for the Forté 4GL environment.
J2EE is a standard, and there are already some Application servers
that
implement it (as I was told, webSphere, Iplanet and weblogic,
sorry if I am missing someone).
I really do not know the standard, and I am not sure it says it will
have to be implemented in Java, but all these 3 application servers
do it in Java...
The C++ experience is only from part of the team, and is not from
Database applications, the type of application we are doing is not
well suited to do in C++, we all agree, C++ is out of the question.
I have received many answers (not posted in this mailling list
unfortunatly) telling me that Java is best, others told me Forté is
good Java is just a promise, but they really did not know Java
very well, someone even said:
Forte 4GL sucks terribly. It is not supported well by what
is left of 'Forte the company'.
The tools for this proprietary environment suck.
No distributed debugging or profiling!
There is really no adequate profiling support at all
Avoid Forte like the plague that it is.
Any way, a Forté person told us that Forté is good, precisely, for
our kind of application, and as some people made more questions about
it, I am explaining better our application:
- We are doing this application because we are an IT company, our
job is to make and sell back-office applications for the finance
sector (accounting, third-party, bank management, credit
management), now we want to make one application with all of these.
In simple terms we can define it as an ERP for Credit Operations.
- The users will be in-house except for a small set of
functionalitty, which will be available through browsers.
The front-end should run in an ordinary PC running WINDOWS (we
were told that Java is too heavy and PC's should have at least 256Mb
RAM, which, I believe, is to much for all our clients)
If this is true, it puts Java clients (with Swing) or Java applets out,
HTML, we believe is not powerfull enough for all the interface.
The server, will have to work well with about 300 simultaneous
internal users, plus some Web ones (do not know how many)
The application must be multi-lingual, that is, it should be easy to
put it in any language.
The application is based on a big database, with more than 500
tables, some with about 100 columns, some with millions of records.
- We want to be sure that the application will have the same layout
(look and feel) in every screen, so it will be nice something to
generate code or to create similar functionality (table screens,
for instance) in an automatic way ( that is why we are considering
Express for it). Of course this will help also the maintenance of
the sources.
Our questions are:
FORTÉ or JAVA for the server-side.
Which tool for the client-side?
Which framework to use?
-Express or Rapport from albion if using Forté?
-Are there any good frameworks for Java ?
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Gabriel,
I disagree with you on one very important point. You say it's nearly
impossible to predict anything about the future in ICT-world, so it's better
to not predict at all and only look at the here and now. Here and now, Forte
is better than Java. So, the best choice would be Forte.
But you also mention that Forte is best suited for big projects. Big
applications usually have a long lifetime. Many of the current Forte
applications are the legacy systems of tomorrow. While all the VB, Access,
ASP and Java crap that's being produced will be replaced within 6 to 18
months, Forte applications will live for years.
Migrating such large applications to a new environment, even if this
environment is using a similar technology, requires very high investments.
Companies will want to avoid this as much as possible. So, they'll want to
invest in technology that can evolve with the rest of the world. As
operatingsystems change, databases change, middleware architectures become
obsolete (DCE) and new ones are created (EJB), end user interfaces evolve
(from text to GUI to Web), requirements change (data-oriented,
process-oriented, eCommerce), etc.
Of course, flexibility is not only achieved through technology. A good
design is probably more important.
Managers, not developers, will have to make the strategic decisions about
where to spend their millions. So, they have to look at the future, no
matter how hard that is. At the moment, Forte is still superior, even though
it hasn't been truly improved for over 2 years and that's pretty impressive.
Java is still very "hyped" and no one knows what's going to happen to it.
But the future of Java looks much brighter than the future of Forte. If
Forte doesn't put some serious effort in product development and marketing,
like now, the future of this product suite looks very bleak indeed. And I
wouldn't want to spend my millions knowing I have to do it all over again 2
years from now.
Keeping an eye on the future, where the only certainty is change, I would
not focus on platform independance. I would focus on language independance.
CORBA seemed like a very good idea 2 years ago, but it turned out to be too
complex, technical and inflexible. I would definately go for a CBD
architecture, using XML as backbone. XML can be exchanged between components
using HTTP, CORBA, DCOM, FTP, file copy, DCE, C/C++ call in/out, RMI, IIOP,
E-mail, MQSeries, etc. etc. Or any mixture of these systems.
The role of the data architect will become much more important than the role
of the application architect. The choice for a language or tool is reduced
to "the best choice here and now" as long as you design your large
application as loosly coupled components. It's OK if all of these components
are Forte and they're all communicating using Forte native RMI's. As long as
the design is sound, it's not going to be very difficult to exchange
individual components by others, built in Java, VB, Perl, Cobol++, Fortran
for Windows, or what other monsters the future might bring. The only thing
that binds them, is the datamodel (NB: datamodel is not the same as
databasemodel)
I do worry about the trend to use very large, omni-present, closed,
non-component architectures, like the current ERP applications. This locks
organisations into a single, expensive and hard to maintain technology.
However, it is an opportunity for us, OO - C/S - CBD developers, to build
bridges, adapters, wrappers and gateways to hook these systems into the rest
of the organisation.
Pascal Rottier
Atos Origin Nederland (BAS/West End User Computing)
Tel. +31 (0)10-2661223
Fax. +31 (0)10-2661199
E-mail: Pascal.Rottiernl.origin-it.com
++++++++++++++++++++++++++++
Philip Morris (Afd. MIS)
Tel. +31 (0)164-295149
Fax. +31 (0)164-294444
E-mail: Rottier.Pascalpmintl.ch
-----Original Message-----
From: Gabriel, C200/Fa. GFT, DA [mailto:A.Gabriel3deutschepost.de]
Sent: Wednesday, December 06, 2000 5:44 PM
To: 'forte-userslists.xpedior.com'
Subject: Re: (forte-users) RE: Forte' vs J2EE
If I were you, I would also consider this very important issue ( I think
it's the same for all 4GL users ), WILL THERE BE FORTE 4GL 5.0?I wonder every time I see that... Why is this that important?
(my mail is long.. if you don't like long mails, delete it now :) )
Let's see from the business' point of view:
If you would like to have an application implemented now,
use now, then you choose an environment existing now.
Now Forte 4GL seems to be a better alternative than Java,
because of the issues mentioned by others already.
I seem to be short-sighted, but could anybody tell me
with 100% accuracy, what will happen to Java in two years?
I doubt...
Forte did not changed too much in the last two years, and
still rocks, at least compared to other existing enterprise
level alternatives. So, nothing has changed that dramatically.
If you look behind the marketing-hype, you will probably agree.
I think, for the next two years Forte will be good enough for us too.
And what then? We will find out then, not now. Anybody, who tries to
explain you what will be in two years in the IT, almost certainly lies :)
Of course, using a "two years old technology" is not that cool from the
marketing point of view, but you use a solid technology, most likely
bug-free,
or at least having only known bugs. That is technically important!
If you ask about investment protection ... ?
Forte is very good in this subject too. If you look at it, you will see, it
is
sold as an integration solution (Fusion, Conductor, etc...)
If something is sold as an integration tool, it should be not that difficult
to
integrate :) Forte supports the most important standards, existing now.
If your future system supports it (it should), it will be easy to upgrade to
it,
using the existing product,know-how, etc... Probably without noticeable
downtime.
Scalability issues: Forte scales well from big to very-big to ultra-big.
What is big, you have to decide :)
For example, one million mails per day is not big. :)
For small businesses Forte isn't good. Java is. And a lot of other
environments
are, for example Perl, Python, etc...
My personal opinion is that our future will be heavily influenced by free
software.
They are very good already, and will be only better.
As Forte evolves, one important step would be to port it to free (and thus
independent)
OS's and DB's like Linux or FreeBSD and Postgres or Mysql. Even without
warranty!
I can't see what Sun's goal is with Forte, maybe they wouldn't
like this idea at all, since that may be the market segment what their Java
is thought for.
But that would be the perfect investment production as the company grows,
they don't have
to do anything to the software, just buy machines, and play around in
Environment Console :)
From the personal point of view:Although I don't work with Forte in the moment, I did this till last year,
and I will do
that in the next year too :)
If you would like to protect your "investment" and/or "market value" then
try to learn
platform and language independent things. I think, knowing Forte is 25%
platform dependent
knowledge (so useless anywhere else) and 75% platform independent. Using,
analysing, designing,
programming, and living OO is absolutely platform independent.
Project (and self-) management, presentation techniques, design and
documentation practices, version
and revision management, and so on, they are all platform independent.
Furthermore if you quit the Forte world, and have to program f.e. Java, you
will learn it in weeks.
JFC, Swing, et. al. are nothing, if you know OO. You just need a book or
an online manual, and you
can write programs in the first week. You will have much more problems with
the working environment,
and you will wonder, how the others can use that crap... after the smart
Forte IDE :)
Back to business a bit:
One big advantage of Forte, that came to my mind right now is that you can't
(ok, you can, but it is
difficult) to write bad OO programs (and designs). In Java, it is too
easy... believe me, I saw some examples ... :)
Sorry for the bad english and the long mail...
Best regards,
Akos Gabriel
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RE: (forte-users) Is there a later version than Forte v30L2?What 's th

Hi,
We have recently upgraded to 30L4, and Forte say that this fixes a
corruption problem with the repository to do with large projects.
This patch also fixes the problem with AfterValueChange event on
FillInFields.
Upgrading was simple for us as we don't use Express.
R4 is still next year some time as far as I know.
Regards,
Jace.
Jason de Cean
Genisys Team
Lumley Technology Ltd.
Lvl. 8, 55 Sussex St
Sydney, NSW 2000 Australia
Ph: 02 9248 1321
-----Original Message-----
From: Haben, Dirk [mailto:[email protected]]
Sent: Wednesday, 20 October, 1999 3:06
To: 'Soapbox Forte Users'
Subject: (forte-users) Is there a later version than Forte v30L2? What's
the news on R4?
G'day
Someone posted a while back about Forte v30L2 having a minor problem
with
the repository. What's the latest on v30L2 and is there a later release
worth going/waiting for - from v30G2?
What's the release plan for R4 - and what's in it?
Is SynerJ vastly different to Forte - complement, supplement? Any
management
issues to know/learn about?
When will we see integration of selected projects to baseline only
rather
than whole workspace?
Thanks,
Dirk
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the login: forte and the password: archive. To unsubscribe, send in a
new
email the word: 'Unsubscribe' to: [email protected]

I know system management for SynerJ is more complicated. I just got the
1.4.1 version of SynerJ and it has completely changed on how partitioning
work regarding the EJBs. Just more to learn to do the same thing we did in
Forte.
ka
Kamran Amin
[email protected]
(203)-459-7362 or 8-204-7362 - Trumbull
From: Peter Sham[SMTP:[email protected]]
Sent: Wednesday, October 20, 1999 9:55 AM
To: Haben, Dirk; 'Soapbox Forte Users'
Subject: Re: (forte-users) Is there a later version than Forte v30L2?
What's the news on R4?
Hi,
I guess many people is interested in finding out how different it is
between SynerJ and TOOL.
Here is something to share.
1. Forte is posting all manuels ( SynerJ, Fusion, Conductor ) on the Web.
You just need a customer login in. Here is a good start.
2. java.sun.com now has a beta document J2EE APM which explain the
architectual of J2EE. The document how and when you will use JSP,
Servlet, EJB & Java Bean etc. You will find it along with the J2EE beta
free download.
My feeling is: on system management level, SynerJ is more or less similiar
with what we have now ( maybe they jus rewriting everything in Java ).
However, on development and design level, there is quite a large
difference. Nevertheless, it's exciting.
Regards,
Peter Sham.
"Haben, Dirk" <[email protected]> wrote:
G'day
Someone posted a while back about Forte v30L2 having a minor problem
with
the repository. What's the latest on v30L2 and is there a later
release
worth going/waiting for - from v30G2?
What's the release plan for R4 - and what's in it?
Is SynerJ vastly different to Forte - complement, supplement? Any
management
issues to know/learn about?
When will we see integration of selected projects to baseline only
rather
than whole workspace?
Thanks,
Dirk
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the login: forte and the password: archive. To unsubscribe, send in
a new
email the word: 'Unsubscribe' to:
[email protected]

Re: (forte-users) systemexception

Hi There
Segmentation violations can be caused by different
situations. Force compiling works well in clearing
most SV's. It is advisable to first clear all
breakpoints, force-compile your plans and run your
application. If you still get the SV then run in debug
mode to identify the problem area.
Hope this helps.
Jairaj Rampershad
System Consultant
--- Forte App <[email protected]> wrote:
Hi,
iam getting system segmentation/access violation
Fatal Error: system segmentation/access violation
caught.
Class: qqos_SystemException
Error: [101, 321]
Detected: qqos_MainSingHd1 on part5,
Error: TMgr
RunThread:task10.SAsync.AppServerInterfaceMgr
Error:qq10_LomTaskInitiator
what cause this type of error
Thanks in advance
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[email protected]

Hi Jean-Paul,
As described in the Technote 10981 some Forte programs (Nodemanager and
router) handle correct the high-file descriptor-use problem. It is possible
that Forte interpreter do it correct too.
Zenon
-----Original Message-----
From: Jean-Paul Gabrielli [SMTP:Jean-Paul.Gabriellisema.fr]
Sent: Monday, September 25, 2000 12:11 PM
To: Adamek, Zenon
Cc: Forte-userslists.xpedior.com
Subject: RE: (forte-users) [UNIX] "Too many open files" 3.0.M2
question
Actually, the stuff works in interpreted mode.
It's only when having the server partition compiled that this happen.
j-p
-----Message d'origine-----
De: Adamek, Zenon [mailto:ZAdamekpurolator.com]
Date: lundi 25 septembre 2000 17:13
À: 'Jean-Paul.Gabriellisema.fr'
Cc: Forte-userslists.xpedior.com
Objet: RE: (forte-users) [UNIX] "Too many open files" 3.0.M2 question
see Technote 10981
-----Original Message-----
From: Jean-Paul Gabrielli [SMTP:Jean-Paul.Gabriellisema.fr]
Sent: Monday, September 25, 2000 11:02 AM
To: zeForte-users
Subject: (forte-users) [UNIX] "Too many open files" 3.0.M2 question
Hi,
running a server partition that reads a configuration file,
and apparently doen't close it after, I have that exception:
SYSTEM ERROR: System Error: Too many open files, opening '....'with mode
'r'
Class: qqos_FileResourceException
1) Is there such a limit, or does this rely only on the OS one ?
2) How is this error not trapped, as I only got itinteractively, whereas
my server log does a exception trap/segmentation fault,
thanlks
j-p
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>
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Re: (forte-users) (UPDATE) Forte not letting go of Oracleconnections

All,
I have been communicating with Forte regarding this
issue. I was informed that a fix for this bug will be
released in SP2 tentatively due at the end of May.
Forte also confirmed that the bug was introduced in
3.5 and exists in 3.5.1.
Samer Kanjo
--- Joseph Mirwald <jomirweb.de> wrote:
Hello all,
some time ago we talked about the problem, that some
DBSession-connects hang
if the partition where the DBSessionSO is used goes
down.
Ok, there may be some problems with forte or the
Database (TWO_TASK, and so
on).
Does anybody implement a DBSession.Disconnect() when
partition goes down?
I mean the partition exits by a kill or by escript
or econsole, not by a
Forte-Method call
of somewhere else.
I thought the solution must be a loop which
registers for the
task.Shutdown-event, but at
the init-method I couldn't stay in a loop and wait,
because i has to call
the service-objects
methods. Another solution may be a 'start task
LoopMethod()' which are
registers the
event, but i don't try it now, because i don't know
the side-effects
because the thread calls
a method of the 'mother-process' which goes down
also.
What is your solution or idea?
Joseph Mirwald
GERMANY
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All,
I have been communicating with Forte regarding this
issue. I was informed that a fix for this bug will be
released in SP2 tentatively due at the end of May.
Forte also confirmed that the bug was introduced in
3.5 and exists in 3.5.1.
Samer Kanjo
--- Joseph Mirwald <jomirweb.de> wrote:
Hello all,
some time ago we talked about the problem, that some
DBSession-connects hang
if the partition where the DBSessionSO is used goes
down.
Ok, there may be some problems with forte or the
Database (TWO_TASK, and so
on).
Does anybody implement a DBSession.Disconnect() when
partition goes down?
I mean the partition exits by a kill or by escript
or econsole, not by a
Forte-Method call
of somewhere else.
I thought the solution must be a loop which
registers for the
task.Shutdown-event, but at
the init-method I couldn't stay in a loop and wait,
because i has to call
the service-objects
methods. Another solution may be a 'start task
LoopMethod()' which are
registers the
event, but i don't try it now, because i don't know
the side-effects
because the thread calls
a method of the 'mother-process' which goes down
also.
What is your solution or idea?
Joseph Mirwald
GERMANY
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Re: (forte-users) FW: (forte-users) Overflow Exception thatIcan't catch

Dave
If you use #,##0.00 template, forte won't allow you to enter more than 28 numbers.
Nat
"Campbell, Dave" <DCampbellpurolator.com> 01/28 10:49 AM >>>Thanks Zenon,
You mean... that without the aftervaluechange event, I could catch this?
Because by no means is my exception block anchored to that event.
I am looking for advice of where I could put this exception block...if there
is another possible place at all.
Thanks.
Dave
Regards,
Dave Campbell
Consultant,
Caro Systems Inc.
Mailto:Dave.CampbellCaroSys.com
-----Original Message-----
Hi Dave,
You have no chance to catch this exception in aftervaluechange block.
This event is triggered if the value in DataField is OK.
You get only Arithmetic exception without the aftervaluechange event if the
length of the decimal is greater as 28.
Regards
Zenon Adamek
Forte Developer
Purolator Courier Ltd.
ZAdamekpurolator.com
-----Original Message-----
From: Campbell, Dave [SMTP:DCampbellpurolator.com]
Sent: Friday, January 28, 2000 8:19 AM
To: 'kamranaminyahoo.com'
Subject: (forte-users) Overflow Exception that I can't
catch...
The problem is:
I have a DataField, mapped type :DecimalNullable
the input mask is set to Template ( #,##0;;;;)
Because it is Template I can't validate on keystroke and
I can't set the max characters in the properties sheet.
This works great until, Someone enters over 28 characters into the
field.
It then displays the errors:
USER ERROR: Operation caused arithmetic overflow
Class: qqsp_ArithmeticException
Error #: [301, 7]
Deteced at: DecimalData.SetScale at 1
ErrorTime: Thu Jan 27 15:50:48
Exception occurred (locally) on partition
"PurolatorApplications_CL0_Client" ,(partitionId =
DEB96B60-AA27-11D1-82A8-23E82A0FAA77:0X6f98:0x7, TASKiD =
[DEB96B60-AA27-11D1-82A8-23E82A0FAA77:0X6f98:0x7.492] in
application
"FTLaunch_c10",pid 279 on node W5300109 in environment centrale
This is the first bit of code that executes when I leave the field
and the
value has changed:
when <est_daily_rev_amt>.aftervaluechange do
Begin
sys_upd_usr_nam = aUserProfileBO.user_nam;
aCPVDetailItem.SetState(base_detailItem.CHANGED_STATE);
Exception
when ex:ArithmeticException Do
Task.ErrMgr.Clear();
Window.MessageDialog(
messageText='Revenue amount can not exceed
100,000,000',
MessageType=MT_WARNING);
Self.Window.PurgeEvents();
End;
This is what I do:
I put a debugging stop on the "when line" and the "Exception line"
I also set the debugger to stop on all exceptions and posts.
It never reaches the above code!?
Is this a forte bug?
I need the template and I need it to be a decimalnullable.
Is there any suggestions for where else I may catch this
Exception???
Thanks in advance
Regards,
Dave Campbell
Consultant,
Caro Systems Inc.
Mailto:Dave.CampbellCaroSys.com
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Dave
If you use #,##0.00 template, forte won't allow you to enter more than 28 numbers.
Nat
"Campbell, Dave" <DCampbellpurolator.com> 01/28 10:49 AM >>>Thanks Zenon,
You mean... that without the aftervaluechange event, I could catch this?
Because by no means is my exception block anchored to that event.
I am looking for advice of where I could put this exception block...if there
is another possible place at all.
Thanks.
Dave
Regards,
Dave Campbell
Consultant,
Caro Systems Inc.
Mailto:Dave.CampbellCaroSys.com
-----Original Message-----
Hi Dave,
You have no chance to catch this exception in aftervaluechange block.
This event is triggered if the value in DataField is OK.
You get only Arithmetic exception without the aftervaluechange event if the
length of the decimal is greater as 28.
Regards
Zenon Adamek
Forte Developer
Purolator Courier Ltd.
ZAdamekpurolator.com
-----Original Message-----
From: Campbell, Dave [SMTP:DCampbellpurolator.com]
Sent: Friday, January 28, 2000 8:19 AM
To: 'kamranaminyahoo.com'
Subject: (forte-users) Overflow Exception that I can't
catch...
The problem is:
I have a DataField, mapped type :DecimalNullable
the input mask is set to Template ( #,##0;;;;)
Because it is Template I can't validate on keystroke and
I can't set the max characters in the properties sheet.
This works great until, Someone enters over 28 characters into the
field.
It then displays the errors:
USER ERROR: Operation caused arithmetic overflow
Class: qqsp_ArithmeticException
Error #: [301, 7]
Deteced at: DecimalData.SetScale at 1
ErrorTime: Thu Jan 27 15:50:48
Exception occurred (locally) on partition
"PurolatorApplications_CL0_Client" ,(partitionId =
DEB96B60-AA27-11D1-82A8-23E82A0FAA77:0X6f98:0x7, TASKiD =
[DEB96B60-AA27-11D1-82A8-23E82A0FAA77:0X6f98:0x7.492] in
application
"FTLaunch_c10",pid 279 on node W5300109 in environment centrale
This is the first bit of code that executes when I leave the field
and the
value has changed:
when <est_daily_rev_amt>.aftervaluechange do
Begin
sys_upd_usr_nam = aUserProfileBO.user_nam;
aCPVDetailItem.SetState(base_detailItem.CHANGED_STATE);
Exception
when ex:ArithmeticException Do
Task.ErrMgr.Clear();
Window.MessageDialog(
messageText='Revenue amount can not exceed
100,000,000',
MessageType=MT_WARNING);
Self.Window.PurgeEvents();
End;
This is what I do:
I put a debugging stop on the "when line" and the "Exception line"
I also set the debugger to stop on all exceptions and posts.
It never reaches the above code!?
Is this a forte bug?
I need the template and I need it to be a decimalnullable.
Is there any suggestions for where else I may catch this
Exception???
Thanks in advance
Regards,
Dave Campbell
Consultant,
Caro Systems Inc.
Mailto:Dave.CampbellCaroSys.com
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RE: (forte-users) Debugging 'fixes' problem!!!

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