Re: (forte-users) Dynamic construction of objects at runtimeusing str

Shirish,
We are currently doing this using libraries. It works something like this:
Create your classes, have them implement interfaces and build them into a
library. Then we have the following
method 1 basically does a findlibrary to load the library:
self.Lib = task.part.FindLibrary( projectName = 'MyLib',
distributionId = 'mylib',
compatibilityLevel = 1,
libraryName = 'mylib');
method 2 is called to load the dynamic object does a findclass and returns
an object which implements a known interface.
GetClass (pClassName string): object
begin
return self.MessageLibrary.FindClass(classname = pClassName);
end;
aObj : MyObjInterface;
aObj = (MyObjInterface)(GetClass('DynamicClassName'));
HTH
Michael
At 23:28 18/10/1999 MDT, you wrote:
--Does anybody have information about how to create objects at runtime using a
string that contains the classname?
--You have an object of the base class and you have a string containing the
derivedclass name, how do you do the typecasting of the base calss object
using this string?
please send anyinformation about the following question to
[email protected]
Thank you!!!
shirish****************************************************************************
Michael Burgess Ph: +61 2 9239 4973
Contract Consultant Fax: +61 2 9239 4900
Lawpoint Pty. Limited E-mail [email protected]
****************************************************************************

Similar Messages

RE: (forte-users) dynamic select & maxrowsparameter

I thing this code should help:
** Accepts command string for dynamic query and **
** an empty array of BC to which the results **
** should be appended. Returns the filled BC **
** array. **
l_dynamicStatement : DBStatementHandle;
l_inputDescriptor : DBDataSet;
l_outputDescriptor : DBDataSet;
l_outputData : DBDataSet;
l_intStatementType : integer;
l_intRowType : integer;
l_intNumRows : integer;
l_intRowCount : integer = 0;
l_result : BusinessClass = new;
BEGIN
-- Prepare SQL statement for query given command string
l_dynamicStatement = self.GetDBSession().Prepare(
commandString = p_strSql,
inputDataSet = l_inputDescriptor,
cmdType = l_intStatementType);
-- Open Cursor
l_intRowType = GetDBSession().OpenCursor(
statementHandle = l_dynamicStatement,
inputDataSet = l_inputDescriptor,
resultDataSet = l_outputDescriptor);
-- Fetch first row
l_intNumrows = GetDBSession().FetchCursor(
statementHandle = l_dynamicStatement,
resultDataSet = l_outputData);
WHILE l_intNumRows > 0 DO -- If prev fetch returned a row
-- Increment count of rows fetched
l_intRowCount = l_intRowCount + 1;
-- Check for excessive number of rows retrieved
-- Then it checks if you want to throw a exception or
-- just exit and return the result set.
IF l_introwCount > p_intMaxRow THEN
IF p_bThrowExcept THEN
-- Shut the cursor down and remove prepared
statement
GetDBSession().CloseCursor(l_dynamicStatement);
GetDBSession().RemoveStatement(l_dynamicStatement);
// Raise exception
-- Have to put code
ELSE
EXIT;
END IF;
END IF;
-- Parse result from DBDataSet to subclass
-- of BusinessClass
l_result = parseResult(l_outputData);
// Add row to array
p_aryBC.AppendRow(l_result.Clone(deep=TRUE));
// Fetch next row
l_intNumrows = GetDBSession().FetchCursor(
statementHandle = l_dynamicStatement,
resultDataSet = l_outputData);
END WHILE;
-- Shut the cursor down and remove prepared statement
GetDBSession().CloseCursor(l_dynamicStatement);
GetDBSession().RemoveStatement(l_dynamicStatement);
EXCEPTION
when e: GenericException do
GetDBSession().CloseCursor(l_dynamicStatement);
GetDBSession().RemoveStatement(l_dynamicStatement);
raise e;
END;
return p_aryBC;
ka
Kamran Amin
Framework, Inc.
303 South Broadway
Tarrytown, NY 10591
(914) 631-2322x121
[email protected]
http://www.frameworkinc.com/
-----Original Message-----
From: Matthew Middleton [mailto:[email protected]]
Sent: Thursday, December 09, 1999 11:15 PM
To: Will Chris
Cc: [email protected]
Subject: RE: (forte-users) dynamic select & maxrows parameter
Think there's a mis-understanding. The maxrows I refer to is not SQL but a
forte method parameter as in the following:
dynStatement = self.DefaultDBSession.Prepare(commandString = sqlStatement
,inputDataSet = inputDescriptor
,cmdType = commandType);
rowType = self.DefaultDBSession.Select(statementHandle = dynStatement
,inputDataSet = inputDescriptor
,resultDataSet = outputDescriptor
,maxrows = 100);
the variable sqlStatement holds the "dynamic" select string.
If I don't set maxrows I get a runtime error, as mentioned, it is running
against Oracle.
At 14:47 10/12/99 +1100, you wrote:
We use Oracle and Rdb and we have dynamic and non-dynamic SQL. No
combination of
these demand a max rows clause.
For example the following query works on both databases :
lvLanguageCodesList : Array of LanguageCodes = new();
begin transaction
sql select Language_Code LanguageCode,
Language_Nm LanguageNm,
System_Control_YN SystemControlYN,
Other_Language_YN OtherLanguageYN
into :lvLanguageCodesList
from SRD_LANGUAGE_CODES
order by Language_Nm
on session StudentRegistryDBSession;
end transaction;
if lvLanguageCodesList.items = 0 then
return Nil;
else
return lvLanguageCodesList;
end if;
Indeed if we wanted to use max rows its a bit of a pain in the bum because
Oracle and
Rdb use different syntax to define the row limit. So our dynamic SQL
'builder class'
has to detect the database flavour and configure max rows accordingly(where
we want to use
it).
I can only guess that the error you are getting is not assoicated to therow
limit or is caused because of the database you are using ?
Regards,
Chris Will, Sydney, Australia
-----Original Message-----
From: Matthew Middleton [mailto:[email protected]]
Sent: Friday, 10 December 1999 14:33
To: [email protected]
Subject: (forte-users) dynamic select & maxrows parameter
the help for DBSession.Select method says that the maxrows
parameter is not
required. Leaving it out does not give a compile error.
However at runtime
an error is got saying maxrows must be > 0.
I am using a method that accepts a where clause as a
parameter and am not
really interested in what the number of rows will be.
Should I be?
Does anyone have any knowledge they can share on this one.
Thanks.
Regards,
Matthew Middleton Ph: +61 2 9239 4972
Oryx Software Consultant Fax: +61 2 9239 4900
Lawpoint Pty. Ltd. E-mail [email protected]
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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the login: forte and the password: archive. To unsubscribe, send in a new
email the word: 'Unsubscribe' to: [email protected]
Regards,
Matthew Middleton Ph: +61 2 9239 4972
Oryx Software Consultant Fax: +61 2 9239 4900
Lawpoint Pty. Ltd. E-mail [email protected]
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I thing this code should help:
** Accepts command string for dynamic query and **
** an empty array of BC to which the results **
** should be appended. Returns the filled BC **
** array. **
l_dynamicStatement : DBStatementHandle;
l_inputDescriptor : DBDataSet;
l_outputDescriptor : DBDataSet;
l_outputData : DBDataSet;
l_intStatementType : integer;
l_intRowType : integer;
l_intNumRows : integer;
l_intRowCount : integer = 0;
l_result : BusinessClass = new;
BEGIN
-- Prepare SQL statement for query given command string
l_dynamicStatement = self.GetDBSession().Prepare(
commandString = p_strSql,
inputDataSet = l_inputDescriptor,
cmdType = l_intStatementType);
-- Open Cursor
l_intRowType = GetDBSession().OpenCursor(
statementHandle = l_dynamicStatement,
inputDataSet = l_inputDescriptor,
resultDataSet = l_outputDescriptor);
-- Fetch first row
l_intNumrows = GetDBSession().FetchCursor(
statementHandle = l_dynamicStatement,
resultDataSet = l_outputData);
WHILE l_intNumRows > 0 DO -- If prev fetch returned a row
-- Increment count of rows fetched
l_intRowCount = l_intRowCount + 1;
-- Check for excessive number of rows retrieved
-- Then it checks if you want to throw a exception or
-- just exit and return the result set.
IF l_introwCount > p_intMaxRow THEN
IF p_bThrowExcept THEN
-- Shut the cursor down and remove prepared
statement
GetDBSession().CloseCursor(l_dynamicStatement);
GetDBSession().RemoveStatement(l_dynamicStatement);
// Raise exception
-- Have to put code
ELSE
EXIT;
END IF;
END IF;
-- Parse result from DBDataSet to subclass
-- of BusinessClass
l_result = parseResult(l_outputData);
// Add row to array
p_aryBC.AppendRow(l_result.Clone(deep=TRUE));
// Fetch next row
l_intNumrows = GetDBSession().FetchCursor(
statementHandle = l_dynamicStatement,
resultDataSet = l_outputData);
END WHILE;
-- Shut the cursor down and remove prepared statement
GetDBSession().CloseCursor(l_dynamicStatement);
GetDBSession().RemoveStatement(l_dynamicStatement);
EXCEPTION
when e: GenericException do
GetDBSession().CloseCursor(l_dynamicStatement);
GetDBSession().RemoveStatement(l_dynamicStatement);
raise e;
END;
return p_aryBC;
ka
Kamran Amin
Framework, Inc.
303 South Broadway
Tarrytown, NY 10591
(914) 631-2322x121
[email protected]
http://www.frameworkinc.com/
-----Original Message-----
From: Matthew Middleton [mailto:[email protected]]
Sent: Thursday, December 09, 1999 11:15 PM
To: Will Chris
Cc: [email protected]
Subject: RE: (forte-users) dynamic select & maxrows parameter
Think there's a mis-understanding. The maxrows I refer to is not SQL but a
forte method parameter as in the following:
dynStatement = self.DefaultDBSession.Prepare(commandString = sqlStatement
,inputDataSet = inputDescriptor
,cmdType = commandType);
rowType = self.DefaultDBSession.Select(statementHandle = dynStatement
,inputDataSet = inputDescriptor
,resultDataSet = outputDescriptor
,maxrows = 100);
the variable sqlStatement holds the "dynamic" select string.
If I don't set maxrows I get a runtime error, as mentioned, it is running
against Oracle.
At 14:47 10/12/99 +1100, you wrote:
We use Oracle and Rdb and we have dynamic and non-dynamic SQL. No
combination of
these demand a max rows clause.
For example the following query works on both databases :
lvLanguageCodesList : Array of LanguageCodes = new();
begin transaction
sql select Language_Code LanguageCode,
Language_Nm LanguageNm,
System_Control_YN SystemControlYN,
Other_Language_YN OtherLanguageYN
into :lvLanguageCodesList
from SRD_LANGUAGE_CODES
order by Language_Nm
on session StudentRegistryDBSession;
end transaction;
if lvLanguageCodesList.items = 0 then
return Nil;
else
return lvLanguageCodesList;
end if;
Indeed if we wanted to use max rows its a bit of a pain in the bum because
Oracle and
Rdb use different syntax to define the row limit. So our dynamic SQL
'builder class'
has to detect the database flavour and configure max rows accordingly(where
we want to use
it).
I can only guess that the error you are getting is not assoicated to therow
limit or is caused because of the database you are using ?
Regards,
Chris Will, Sydney, Australia
-----Original Message-----
From: Matthew Middleton [mailto:[email protected]]
Sent: Friday, 10 December 1999 14:33
To: [email protected]
Subject: (forte-users) dynamic select & maxrows parameter
the help for DBSession.Select method says that the maxrows
parameter is not
required. Leaving it out does not give a compile error.
However at runtime
an error is got saying maxrows must be > 0.
I am using a method that accepts a where clause as a
parameter and am not
really interested in what the number of rows will be.
Should I be?
Does anyone have any knowledge they can share on this one.
Thanks.
Regards,
Matthew Middleton Ph: +61 2 9239 4972
Oryx Software Consultant Fax: +61 2 9239 4900
Lawpoint Pty. Ltd. E-mail [email protected]
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
email the word: 'Unsubscribe' to: [email protected]
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
email the word: 'Unsubscribe' to: [email protected]
Regards,
Matthew Middleton Ph: +61 2 9239 4972
Oryx Software Consultant Fax: +61 2 9239 4900
Lawpoint Pty. Ltd. E-mail [email protected]
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
email the word: 'Unsubscribe' to: [email protected]

Re: (forte-users) loadbalancing a service object

Hi,
If you need to share the values between your So, you can find a sample on
http://perso.club-internet.fr/dnguyen
It was designed to show how to manage shared states between replicates using
fail over. It could also be used for load-bancing. A better way should be to
manage the names of service objects within Forte (with the application,
project name and compatibility level), but through the NameServer.
Hope this helps,
Daniel Nguyen
Freelance Forte Consultant
http://perso.club-internet.fr/dnguyen/
Xiao, Menghua a écrit:
Hello,
I tried to loadbalance a service object that has both methods and
attributes. The first copy of the service object works fine. However, all
the attributes of the second copy of the service object are nil when a
client try to use this copy. How can I make those two copies exactly the
same?
I am new to Forte. Any input will be greatly appreciated.
Menghua Xiao
Regional Transportation District,
Denver, Colorado, USA
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

Hi,
If you need to share the values between your So, you can find a sample on
http://perso.club-internet.fr/dnguyen
It was designed to show how to manage shared states between replicates using
fail over. It could also be used for load-bancing. A better way should be to
manage the names of service objects within Forte (with the application,
project name and compatibility level), but through the NameServer.
Hope this helps,
Daniel Nguyen
Freelance Forte Consultant
http://perso.club-internet.fr/dnguyen/
Xiao, Menghua a écrit:
Hello,
I tried to loadbalance a service object that has both methods and
attributes. The first copy of the service object works fine. However, all
the attributes of the second copy of the service object are nil when a
client try to use this copy. How can I make those two copies exactly the
same?
I am new to Forte. Any input will be greatly appreciated.
Menghua Xiao
Regional Transportation District,
Denver, Colorado, USA
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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

Re: (forte-users) Dynamic Class Loading andUnloading

If you are using TOOL libraries, perhaps you can use the CL level feature of
Forte to load libraries.
If the initial meta data libraries are CL0, your external data used to load
the library can specify "cl0". Then you update the libraries, make them CL1,
update your external data to specify "cl1" and then when the next time you
need to load a class, it will open the library set as "cl1". Since cl0 and
cl1 are effectively two totally different libraries from Forte's point of
view, they can both exist and need not be unloaded per se.
Of course once you go to cl1, you cannot go back to the cl0 level if you
want to modify code in the library. The next step is cl2, cl3 etc.
Could this be an option for your problem?
Theo de Klerk
Architecture & Application Integration
Professional Services
Compaq Computer Corp. - the Netherlands

If you are using TOOL libraries, perhaps you can use the CL level feature of
Forte to load libraries.
If the initial meta data libraries are CL0, your external data used to load
the library can specify "cl0". Then you update the libraries, make them CL1,
update your external data to specify "cl1" and then when the next time you
need to load a class, it will open the library set as "cl1". Since cl0 and
cl1 are effectively two totally different libraries from Forte's point of
view, they can both exist and need not be unloaded per se.
Of course once you go to cl1, you cannot go back to the cl0 level if you
want to modify code in the library. The next step is cl2, cl3 etc.
Could this be an option for your problem?
Theo de Klerk
Architecture & Application Integration
Professional Services
Compaq Computer Corp. - the Netherlands

RE: (forte-users) BindingObjects

Hallo Benoit,
Two direction to go. First one try, to clean up the references, using
the methods task.part.DistObjectMgr.ReleaseConnection(object) and
task.part.DistObjectMgr.ReleaseDistReference (object=Object). Look into
the Forté on-line help for details. Also remember to check the keepalive
properties on your partitions (including the environment manager).
Second option, you can browse the name service (using its agent) for the
requested name, before you try to bind.
Hope this helps
Fabrizio Genesio
Datasign AG für Informatik
ch. d'Eysins 53a
CH-1260 Nyon
Switzerland
Tel.: +41 22 361 04 04
Fax: +41 22 361 01 10
e-mail: fabrizio.genesiodatasign.ch
<mailto:fabrizio.genesiodatasign.ch>
URL: www.datasign.ch <http://www.datasign.ch>
-----Original Message-----
From: Benoit Pauchet [SMTP:benoitfortehotmail.com]
Sent: Friday, 03 March 2000 08:34
To: kamranaminyahoo.com
Subject: (forte-users) BindingObjects
Hi everybody,
**Object of problem**
Binding an object that are not yet registered in the name
service.
**Context**
30's Forté connected environments geografically dispersed in
Belgium.
**Explanation**
Brussels has our Forté super-environment.
A Forté listener object runs there and capts or receives a lot
of messages
from our Unisys Mainframe.
When parsing these messages, the Listener_SO has to run,
somewhere in
Belgium, an explicit method on a distributed binded object..
The BindObject method works very well when the local objects are
referenced
in the name-service, or in another words, when the local
partition is
ONLINE.
Early in the morning, I start the multiple local SO's with a
script.
But sometimes, we have problem with our local servers. Something
appears
that the parttion doesn't start. This is a normal system fault,
bad boot of
server, disk fault, etc.
My problem is here:
Naturally, when it's append, the name service doesn't know this
SO reference
because the concerned partition is OffLine.
When the listener tries to bind an unknowed object, I get a
normal
DistAccessException with a ReasonCode SP_ER_OBJECTNOTFOUND.
ok... that's normal !
**BUT** when I start the local partion (then is OnLine), and I
try a new
Bind, I have the same error ...
I have to shutdown the listener and the bind works properly.
In my context, **I must not shutdown the listener and re-start
it because
many people are connected with**.
Is there a solution to my problem ? - I hope so, because I'm
working in
production now, and the deadline for this solution is very very
short ...
Thanks very much to help me,
For the archives, go to: http://lists.xpedior.com/forte-users
and use
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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) (Fwd) ODBC & Dynamically Choosing aDatabase Ve ndor

The error you are getting is saying that the data source is not correctly
specified. Make sure the data source(or the name of the ODBC driver you
created) is correctly specified in your code.
ka
-----Original Message-----
From: Duncan Kinnear [mailto:[email protected]]
Sent: Sunday, December 19, 1999 6:26 PM
To: [email protected]
Subject: (forte-users) (Fwd) ODBC & Dynamically Choosing a Database
Vendor
I am trying to dynamically create a DBSession to connect to the
Microsft SQL Server ODBC Driver on a Forte Server Node.
I have tested the ODBC connection on the Local Machine and it works fine.
I have connected to the SQL Server on that machine with a Static
DBSession Object and that works fine.
I have used the same code to create a DBSession to Informix on Unix
and that worked fine.
The error I get is a converted ODBC one:
SYSTEM ERROR: Attempt to load partition named TestWinProject_cl0_Part1
failed.
Class: qqsp_ResourceException
Error #: [1001, 4]
Detected at: qqrt_ForteExecAgent::LoadPartition at 2
Error Time: Mon Dec 20 12:05:37
Distributed method called: qqrt_ForteExecAgentProxy.LoadPartition!7
(object name Unnamed) from partition "Node Manager", (partitionId =
40114BC0-B0FC-11D3-B4D6-E87D6941AA77:0x11c, taskId =
[40114BC0-B0FC-11D3-B4D6-E87D6941AA77:0x11c.38]) in application
"System
Manager", pid 250 on node ALLY in environment testenv
Exception occurred (remotely) on partition "Forte_Executor",
(partitionId
= 40114BC0-B0FC-11D3-B4D6-E87D6941AA77:0x11e, taskId =
[40114BC0-B0FC-11D3-B4D6-E87D6941AA77:0x11e.22]) in application
"TestWinProject_cl0", pid 235 on node ALLY in environment TestEnv.
SYSTEM ERROR: Failed to create service object TestDataProject.TestService.
Class: qqsp_ResourceException
Last TOOL statement: method TestServiceMgr.
Error Time: Mon Dec 20 12:05:37
Exception occurred (remotely) on partition "Forte_Executor",
(partitionId
= 40114BC0-B0FC-11D3-B4D6-E87D6941AA77:0x11e, taskId =
[40114BC0-B0FC-11D3-B4D6-E87D6941AA77:0x11e.22]) in application
"TestWinProject_cl0", pid 235 on node ALLY in environment TestEnv.
USER ERROR: (This error was converted)
Failed to connect to database: ForteSQLServer , username: justin .
[Microsoft][ODBC Driver Manager] Data source name not found and no
default
driver specified
Class: qqdb_RemoteAccessException with ReasonCode:
DB_ER_DBMSCONNECTION
DBMS SQLSTATE: IM002
Class: qqsp_ErrorDescriptor
Detected at: qqdb_OdbcVendorInfo::DoSQLConnect at 10
Last TOOL statement: method ServiceMgr.SetDBSession
Error Time: Mon Dec 20 12:05:37
Exception occurred (remotely) on partition "Forte_Executor",
(partitionId
= 40114BC0-B0FC-11D3-B4D6-E87D6941AA77:0x11e, taskId =
[40114BC0-B0FC-11D3-B4D6-E87D6941AA77:0x11e.22]) in application
"TestWinProject_cl0", pid 235 on node ALLY in environment TestEnv.
Versions:
SQL SERVER 6.5
ODBC Driver SQL Server 2.65.0240
ODBC Manager 3.0.28.22
NT 4 sp4
Forte 3.0.J.1
The code I'm using is almost identical to that given in the "Dynamically
Choosing a Database Vendor" section of the "Making a Database
Connection" chapter of the "Accessing Databases" manual.
Any suggestions would be greatly appreciated
Thanks in advance.
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
Providing Integrated Software to the Meat Processing Industry for over 10
years
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Subject: RE :(forte-users) Web enterprise & user visibleservice Objects

A few months ago we faced a similar problem while migrating from classic
Forte to Web. We had to protect our investment in various frameworks that we
wrote for the classic Forte apps, which made use of extensive
user-level-caching among other things.
We solved the problem using a custom routing mechanism. In brief, we created
several( replicated) server partitions that contains all the user-level
Service objects that existed in the class-Forte apps. Then we wrote a
'custom-router' which mimics Forte load-balanced router( dialog duration =
session ) to intelligently route incoming HTTPRequests to one of these
replicated partitions. The router would look at the some tag on the session
and then route the request to one of these replicated "client clone" using
the tag. Successive requests from the same client will go to the same
replicated partition so that you can use the client-cache or any other
per-user services.
The advantages of this approach are
1) You can continue to make use of caching and other user-level components
that you may have.
2) The web and classic Forte clients can work seamlessly if you write them
to use reference partitions that hosts the other shared( Environment visible
) service objects.
Ofcourse you will have to write ( and maintain )the custom-routing code and
also pay attention to house-keeping. For example, the burdon of cleaning up
the cache on logout or session expiration lies on you. If you don't do this,
then your new user might be looking at an old cache of some other user.
Hope this helps,
Ajith
Forte Systems Consultant.
Subject: (forte-users) Web enterprise & user visible service objects
Hi
We have taken a forte application and converted it to run on the web using
* forte web enterprise &
* fortecgi.exe
In the forte application we have a user visible Local Cache Manager
Service Object (i.e. each users has their own copy) for storing things
like
* the details of the current user id
* the details of the current client chosen
* arrays that are needed by other windows
With web enterprise this service object is no longer user visible, how can
we make it user visible?
Thanks in advance.
Deborah Wallis
dwallisnbs.co.za
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A few months ago we faced a similar problem while migrating from classic
Forte to Web. We had to protect our investment in various frameworks that we
wrote for the classic Forte apps, which made use of extensive
user-level-caching among other things.
We solved the problem using a custom routing mechanism. In brief, we created
several( replicated) server partitions that contains all the user-level
Service objects that existed in the class-Forte apps. Then we wrote a
'custom-router' which mimics Forte load-balanced router( dialog duration =
session ) to intelligently route incoming HTTPRequests to one of these
replicated partitions. The router would look at the some tag on the session
and then route the request to one of these replicated "client clone" using
the tag. Successive requests from the same client will go to the same
replicated partition so that you can use the client-cache or any other
per-user services.
The advantages of this approach are
1) You can continue to make use of caching and other user-level components
that you may have.
2) The web and classic Forte clients can work seamlessly if you write them
to use reference partitions that hosts the other shared( Environment visible
) service objects.
Ofcourse you will have to write ( and maintain )the custom-routing code and
also pay attention to house-keeping. For example, the burdon of cleaning up
the cache on logout or session expiration lies on you. If you don't do this,
then your new user might be looking at an old cache of some other user.
Hope this helps,
Ajith
Forte Systems Consultant.
Subject: (forte-users) Web enterprise & user visible service objects
Hi
We have taken a forte application and converted it to run on the web using
* forte web enterprise &
* fortecgi.exe
In the forte application we have a user visible Local Cache Manager
Service Object (i.e. each users has their own copy) for storing things
like
* the details of the current user id
* the details of the current client chosen
* arrays that are needed by other windows
With web enterprise this service object is no longer user visible, how can
we make it user visible?
Thanks in advance.
Deborah Wallis
dwallisnbs.co.za
WARNING:
Any unauthorised use or interception of this email is illegal. If this email
is not intended for you, you may not copy, distribute nor disclose the
contents to anyone. Save for bona fide company matters, the BoE Group does
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RE: (forte-users) User-visible service object

This solution will cause network traffic for all method calls on the
environment visible SO. This overhead is not incurred when calling methods
on a user visible SO in the same partition. Depending on the frequency of
calls and the volume of data being passed in and out, this could be
significant overhead.
We have successfully implemented the following.
Create a second User Visible SO based on the same class. Then you will be
able to partition the one SO into the client partition and the second into
the server partition.
For example, assume the underlying class is named MessageService then define
your SO's as
ClientMessageService -> MessageService
ServerMessageService -> MessageService
Andy
-----Original Message-----
From: Amin, Kamran [mailto:kamran.aminlendware.com]
Sent: Wednesday, August 23, 2000 10:17 PM
To: 'Duncan Kinnear'; kamranaminyahoo.com
Subject: RE: (forte-users) User-visible service
object
Duncan,
Make the user visible service object to an
environment visible
service object. This way the client and any service object
on the server
can access it.
ka
-----Original Message-----
From: Duncan Kinnear [mailto:duncanmccarthy.co.nz]
Sent: Wednesday, August 23, 2000 7:47 PM
To: kamranaminyahoo.com
Subject: (forte-users) User-visible service object
Hi folks!
We've got a user-visible service object that handles
initialisation of and
access to the message catalog.
This works well on the client, but we would like to use the
same
mechanism (and even the same service object) on the server
so that
service objects on the server have access to their message
catalog on
the
server.
I was hoping that if we referenced this user-visible service
object in
both the client and the server code, that it would partition
a copy in
each of the client and server partitions. However, we
cannot get this
user-visible service object duplicated on the server. If we
drag and drop
it onto the server partition in the partition workshop, it
disappears from
the client partition!
Anybody got any idea how we could do this?
Cheers,
Duncan Kinnear,
McCarthy and Associates, Email:
duncanMcCarthy.co.nz
PO Box 764, McLean Towers, Phone: +64
6 834 3360
Shakespeare Road, Napier, New Zealand. Fax: +64
6 834 3369
Providing Integrated Software to the Meat Processing
Industry for over 10
years
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I would try going to the "lowest common denominator" between WindowsNT and
Windows95 - DOS. Both windowing OS's sort of have their roots in DOS, or at
least both are capable of opening a DOS session.
Therefore, from a DOS prompt type "set" to view the environment variables for
both OS types. Look for a common variable between the two that stores the
userID. If you can find one of these your application will be that much more
portable between these two Windows mutations.
I used "set" on my NT and found my userID assigned to a few variables. I haven't
done this on a Windows95 machine in quite some time, but if the machine is on
the network it should have at least one environment variable with the userID.
I'm just guessing that DOS has a variable to store the userID that will be
common to both machines.
Good luck....
Kelsey PetrychynSaskTel Technical Analyst
ITM - Technology Solutions - Distributed Computing
Tel (306) 777 - 4906, Fax (306) 359 - 0857
Internet:kelsey.petrychynSasktel.sk.ca
Quality is not job 1. It is the only job!
"Olivier Andrieux" <oandrieuxaxialog.fr> on 07/19/2000 09:12:41 AM
To: forte-userslists.xpedior.com
cc: (bcc: Kelsey Petrychyn/SaskTel/CA)
Subject: (forte-users) user name
Hi
I use this command to catch the username:
task.part.operatingsystem.getenv('username')
with NT, there is no problem
but with windows95 or 98 the command doesn't find the username.
Thanks in advance.
Olivier Andrieux
Axialog
Lille
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RE: (forte-users) Does anyone have experience using OracleLarge Objects

hi ,
A few months ago, I tried a oracle stored procedure with a BLOB parameter,
but Forte(3.l2) could not recognize the blob variable. I used oracle 8.0
hth
suma
-----Original Message-----
From: Amin, Kamran [mailto:kamran.aminlendware.com]
Sent: Thursday, March 29, 2001 2:40 PM
To: 'Forte User Group'
Cc: Magaliff, Bill
Subject: (forte-users) Does anyone have experience using Oracle Large
Objects (LOB's)?
Does anyone have experience using Oracle Large Objects (LOB's) -
specifically the CLOB datatype? Forte supports Oracle LONG's but given that
Oracle is going to phase out that datatype and they're trying to push users
towards CLOB's instead of LONG's, I want to find out if Forte can handle it
and, if so, what we should know about mapping Forte datatypes to the Oracle
CLOB. [Their compatibility matrix for v3.5 indicates suppport under Oracle
8.1.x, and CLOB's were introduced back in 8.0.x - but the word from Forte is
that they currently don't support it.]
thanks in advance.
ka
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Hi,
Did you get any solution to this. If yes, please share.
Thanks,
Tints

RE: (forte-users) Object Request Brokers.....

Hi Rajeev,
I just happen to have the following two technotes on hand that helped me
answers the very same questions..
<<forte.zip>>
Hope it helps... if you need more help... fell free to give me a shout!
Ciao
Kim
-----Original Message-----
From: Rajeev Talwar [SMTP:rtalshotmail.com]
Sent: Monday, February 21, 2000 6:34 PM
To: kamranaminyahoo.com
Subject: (forte-users) Object Request Brokers.....
Hi All,
We are writing a cold fusion application which needs to use some
services from a Forte application. We also have a Cold Fusion Visi
Broker(ORB)to communicate with Forte. I was wondering what all we need
in order to get a handle to all the service objects used by Forte
application in our Cold Fusion application.
Also do we need to change our deployment scheme for the Forte
application. I
believe we have to make a special deployment
for Forte application to be available to ORB's. By default,
Forte uses Unix internal communication mechanism like sockets
etc. for service objects to be available across different
partitions.
Also do we need to run both applications and ORB on the same box
or can we put them in some kind of network.
I hope I made myself quite clear what we are looking for. I will be
more than happy to put some more details in case someone needs
further clarification.
Are there any technotes out there whcih we can refer to.
I will appreciate any thoughts.
-Rajeev Talwar
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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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Kick off your party with Yahoo! Invites.
http://invites.yahoo.com/

Re: (forte-users) Service Object

what about subclassing it and putting the agent stuff in there
Matthew Middleton Ph: +61 2 9239 4972
Oryx Software Consultant Fax: +61 2 9239 4900
Lawpoint Pty. Ltd. E-mail matthewmwriteme.com
----- Original Message -----
From: Ramarao Pabbaraju <RPabbarajulmimsno.com>
To: <kamranaminyahoo.com>
Sent: Tuesday, February 29, 2000 9:02 AM
Subject: (forte-users) Service Object
Hi,
We have a class X which we would like to use it for service object andalso
to instantiate it locally to call some methods. We would like to have
system agents for the service object, but not for objects instantiated
locally. In other words, if the object is used for service object, only
then we want the agents (customized) to be initialized. How do we find out
whether it is service object in Init method self? Service objectproperties
(like isAnchored) or attributes (given from ServiceObject
properties/initial values window) are set only at the end of init method.
One workaround we could think of is start a task at the end of init method
and also delay the execution of method. Is there any clean way of doing
this?
Thanks in advance,
Ramarao
IonIdea
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Creating Forte FieldWidgets Dynamically at Runtime

Hi Everyone,
Could someone please help me with the following problem I have when
creating Forte fieldwidgets dynamically at run-time. I am using Forte
ver. 3.0.G.2.
(-1-) I have a window class with an empty gridfield, <grfMain>, inside a
viewport. The idea is to populate the gridfield with DataField
fieldwidgets dynamically at runtime. Depending on some input criteria,
sometimes some of the DataFields need to map to IntegerNullables, some
to DoubleNullables and some to DateTimeNullables. (Please note that I
cannot use the Forte window workshop to create these fieldwidgets,
because different types of fieldwidgets will be needed at different
times, in different numbers, at run-time. ) Here is a sample of how I am
currently trying to achieve this:
dfDate : DataField = new;
dfDate.MaskType = MK_Template;
dfDate.DateTemplate = new( value='dd/mm/yyyy' );
dfDate.Row = 1;
dfDate.Column = 2;
dfDate.Parent = <grfMain>;
dfInt : DataField = new;
dfInt.MaskType = MK_INTEGER;
dfInt.Row = 2;
dfInt.Column = 2;
dfInt.Parent = <grfMain>;
dfReal : DataField = new;
dfReal.MaskType = MK_FLOAT;
dfReal.Row = 3;
dfReal.Column = 2;
dfReal.Parent = <grfMain>;
The code above is called after the window has been opened with the
Open() statement.
Looking at the code above, one obvious omission is that the "Mapped
Type" of the Datafields are not set up. In the Forte window workshop, an
interface is provided to set up the "Mapped Type" of the Datafield
widgets, but I'm not sure how to do that dynamically, and that is
basically my biggest problem here.
(-2-) If I now run the window class, the Datafield widgets get created,
and they all have the correct input maks, but no validation gets done
when one tabs away from the field. For example, Datafields with
MaskType=MK_INTEGER will gladly accept '--1--0++7', while Datafields
created in the window workshop (mapping to IntegerNullables) will do a
validation, and not allow one to tab out of the field before the extra
minus and plus signs are not removed.
I have the same problem with the Datafields which have
MaskType=MK_Template and DateTemplate='dd/mm/yyyy'. For the date, one
can enter something like '2*\**\****', and leave the field, while the
same type of datafield created in the window workshop (mapped to a
DateTimeNullable), will not allow you to leave the field before a valid
date has not been entered. To summarise, the input masks of my
dynamically created Datafields work fine, but no validation gets done
when the field looses the focus.
(-3-) As a test, I used the Forte debugger ("view"-"local variables") to
look at the differences between Datafields created dynamically, and
those created in the Forte window workshop. One very obvious difference
was that Datafield attribute "MapTypeName" was filled in for the window
workshop Datafields, but not for my dynamically created Datafields. The
problem is that Forte does not allow me to set this attribute
dynamically in my code. How else can I setup the Mapped Type
dynamically?
(-4-) In order to have a consistent look-and-feel throughout our Forte
project, we are making use of Domain classes for DATE and DECIMAL data
entry fields. My questions are:
(4.1) How must I go about creating Datafields dynamically that make use
of these Domain classes?
(4.2) Is it also a matter of setting up the "MapTypeName" attribute,
which I cannot seem to do?
(4.3) Is the mapping done differently for Domain classes?
(-5-) Another interesting thing to note for Datafields created in the
Forte Window Workshop, is that if the mapped type is IntegerNullable
with Input Mask = Integer, or DoubleNullable with Input Mask = Float,
then the Object that the Datafield widget maps to, must first be
instantiated before the Loose-Focus validations will start to work. For
example, if a Datafield widget called "dfTestInt" was created in the
Forte window workshop, which maps to an IntegerNullable, and Input Mask
= Integer, then the following line is needed before the window is
displayed: dfTestInt = new;
Without this line, one can enter something like '2---3+++7', and leave
the field.
This is not true for Datafields where the mapped type is
DateTimeNullable with say Input Mask Template='dd\mm\yyyy'. In this case
validations are done even thought the object being mapped to, has not
been instantiated yet. In other words you will never be able to enter
'2*/**/****', and leave the field for datafield created in the window
workshop. Maybe in this case the validation is being done by the
template itself?
Thanks in advance
Riaan
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what I mean is rendering JSF components on the fly, becuase some time you don't know things at design time. Lets say I am designing a page in creator that shows the total number of dependants that belongs to a primary inusrance member in text boxes. Of course we don't know in advance how many dependants we have for a specific member unless we go to databse and fetch all the data at runtime. Desiging some thing dynamic like that is very easy in CGI or ASP/JSP but JSF model seems very static due to it's design time feature.
So is it possible with JSF or not?

RE: (forte-users) Forte ADE

In addition to this confusion, I'd like to see some statement by Forte to
indicate
WHEN the next Forte R4 is scheduled (before the Sun era is was said to be
Summer 2000) and
WHAT exactly it will contain (major headings will do).
With the cancellation of the Forte Forum event doubt and uncertainty are
spreading in the
Forte communities that I talk with and no one seems to counterbalance these
doubts with an
official statement. How serious does Sun take TOOL Forte for the coming few
years? Release
of Fusion V2 seems to say "serious". The deafning silence with regard to R4
indicates the
opposite. And the users are divided (as always).
Theo de Klerk
Architecture & Application Integration
Professional Services
Compaq Computer Corp. - the Netherlands
-----Original Message-----
From: Rottier, Pascal [mailto:Rottier.Pascalpmintl.ch]
Sent: Tuesday, 18 April, 2000 17:49
To: 'kamranaminyahoo.com'
Subject: (forte-users) Forte ADE
A long, long time ago
In a galaxy far away....
I saw a demonstration of Forte's new Application Development
Environment,
which was more userfriendly than the current one. It also looked more
similar to the interface of the other development tools out
there, with a
tree structure and capabilities to browse through the
inheritance tree, and
not opening a new window for every project, class and method that is
accessed.
This new interface was supposed to be included in Forte 4, which would
combine TOOL and Java and would be released soon.
Since then, we've seen SynerJ and now FJEE, but Forte 4 is still not
released. And when it will be released, it still won't
support TOOL and Java
simultaneously. That's OK. I understand that.
But now I've heard that this improved ADE won't even be
included in Forte 4.
Is this true? And if so, why?
Pascal
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You may be interested in the following which comes from a statement of direction
recently issued by Sun.
Product Context
+ Forté 4GL is an award-winning, proven product with many unique advantages for
building
enterprise business systems that are distributed, that involve the integration
of existing
business systems as well as new functionality, and that target heterogeneous
runtime
environments.
+ Forté 4GL is recognized by Gartner Group as the most successful Enterprise
Application
Development Tool.
+ Forte 4GL has a substantial customer base that has been successful with the
product and that
looks forward to using Forté 4GL for new applications.
+ The Sun Microsystems, Inc. (SMI) development tools group (formerly Forté
Software, Inc.)
has a strong internal commitment to Forté 4GL. Forté Fusion is written with, and
is currently
being enhanced with Forté 4GL.
+ SMI has retained the Forté field sales organization as an independent unit
whose primary
product offerings are Forté 4GL and Forté Fusion. Continued volume sales of
Forté 4GL
remain the foundation of our business plan.
Product Future
+ We intend to actively enhance and promote Forté 4GL for the indefinite
future.
+ We believe Forté 4GL will flourish in the long term, especially if we are
able to harness the
considerable selling power of the entire SMI field sales organization. To make
the product
more attractive and easier to sell, we will continue to make the product more
modular and
easier to integrate with heterogeneous software environments.
+ We believe that the best opportunity for attracting new customers is to
leverage the ability of
Forté 4GL to easily build powerful shared business services (server components)
that can be
accessed by non-Forté clients (e.g., browsers, Java clients) and that can easily
integrate with
new and existing business systems.
+ We believe that Forté 4GL?s continued success is enhanced by continuing to
issue small and
frequent product releases. Our target is two such releases per year.
+ There is a great potential for our three product lines (Forté 4GL, Forté
Fusion, and Forté for
Java) to complement and reinforce each other. Interoperability among the three
product lines
is seen as a critical success factor for Forté 4GL.
Forte 4GL Statement of Direction Page 2
Sun Microsystems, Inc Proprietary and Confidential
Product Priorities
1. Interoperability with third party software components
+ External (non-4GL) client support (e.g., browsers, Java clients)
+ External server integration (e.g., messaging, component support, data
exchange)
2. Enhanced productivity
+ Increased automation (i.e., less coding)
+ Support for platform updates (e.g., new versions of OS, DBMS)
3. TOOL code to Java code migration
4. Unified developer look and feel with other Forte development products
5. Common repository
Short Term Product Plans
Mid-year release
+ New features available as ?preview? per the standard Forte maintenance
release procedures
+ Tentatively labeled ?release 3.5? and distributed as a free product
enhancement for
customers under maintenance
+ Scheduled for Summer 2000
+ Defining features
+ Introspection (reflection) ? the ability for an object to describe itself at
runtime
+ Improved integration with applications developed using Forté-for-Java
Community
Edition
+ Platform support improvements to track important operating system and
database
vendor activity
+ Target features
+ Display system enhancements (e.g., Motif 2 support, line arrowheads, window
refresh control, editable outline fields)
+ Dynamic library loading
+ Improved CORBA/IIOP support
+ Improved XML and XSLT class support
+ JMQ support
New year release
+ New features available as ?preview? per the standard Forte maintenance
release procedures
+ Tentatively labeled ?release 3.6? and distributed as a free product
enhancement for
customers under maintenance
+ Scheduled for year end 2000
+ Defining features
+ Any Release 3.5 target features that were not included in 3.5
+ Generation of EJB interfaces for R3 service objects
+ Platform support improvements to track important operating system and
database
vendor activity
+ Target features
+ COBOL record handling as part of the OS390 transaction adaptor
+ Improved runtime security
+ Interface classes for access to Netscape Server 4.0 and possibly other web
servers
Long Term Product Plans
+ To be determined by customer and market feedback.
+ A major criterion for new functionality will be enhancing the revenue
generating ability of
the product, thereby fostering its long-term health in the marketplace.
+ Substantial emphasis will be placed on creating new capabilities that enhance
the
attractiveness of the product for new users.
+ The contents of Release 3.7 (or whatever it will be called) will be
solidified just after release
3.5 ships. Subsequent planning visibility will be two forward releases.
"Klerk, Theo de" <Theo.de.Klerkcompaq.com> on 04/18/2000 12:27:36 PM
To: "'Rottier, Pascal'" <Rottier.Pascalpmintl.ch>,
"'kamranaminyahoo.com'" <kamranaminyahoo.com>
cc: (bcc: Charlie Shell/Bsg/MetLife/US)
Subject: RE: (forte-users) Forte ADE

RE: (forte-users) Hi All....very urgent...Forte doesn'thandle La rge ar

Okay, here's my three cents worth,
Are you using Forte "Keep Alive" settings? If yes, you may simply have a
time-out.
While a partition is waiting for a reply from a database, it blocks and
won't respond
to anything, including pings to check if it's still alive. So, if the query
takes longer to
complete than the time-out period of the communication manager, then you
will
loose the connection to the partition.
-----Original Message-----
From: Aberdour George [SMTP:george.aberdourdet.nsw.edu.au]
Sent: Sunday, February 13, 2000 11:39 AM
To: 'Babu Raj'; kamranaminyahoo.com
Subject: RE: (forte-users) Hi All....very urgent...Forte doesn't
handle La rge array properly
Hi,
This sounds almost identical to a problem we have experienced.
If it is the same problem it is because you have compiled a back-end
load-balanced partition, but NOT the router that manages it.
With such a configuration, attempts to send greater than a few thousand
rows
will fail - and it doesn't seem to matter what you set -fm to.
You don't see the problem running distributed from your workspace because
everything is interpreted.
So just compile the router and try again.
Hope this helps.
George Aberdour
(George.Aberdourdet.nsw.edu.au)
-----Original Message-----
From: Babu Raj [mailto:ibcsmartboyyahoo.com]
Sent: Saturday, 12 February 2000 7:24
To: kamranaminyahoo.com
Subject: (forte-users) Hi All....very urgent...Forte doesn't handle
Large array properly
Hi All,
Have anyone experienced problem of retrieving
more than 1500 records from the database table, into
the object.
I use dynamic SQL statement, and populating Array
object from the DBDataSet. When it runs from my
workspace distributed, it works fine. But, when I make
deployment, and install on the test bed, I face
Network connection failure from the client machine. It
looks like, server read the data from the Database,
and while packaging it, to send it across to the
client, server seems to run out ouf memory or couldn't
maintain the connection with the client. I tried to
set -fm flag on that partition, and separately setting
FORTE_GC_SPECIAL too, but still no luck.
we have increased, the rollback segment size on
Oracle too, but still no luck.
Appreciate, your suggestions, if you can,
Thank you,
Babu
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Okay, here's my three cents worth,
Are you using Forte "Keep Alive" settings? If yes, you may simply have a
time-out.
While a partition is waiting for a reply from a database, it blocks and
won't respond
to anything, including pings to check if it's still alive. So, if the query
takes longer to
complete than the time-out period of the communication manager, then you
will
loose the connection to the partition.
-----Original Message-----
From: Aberdour George [SMTP:george.aberdourdet.nsw.edu.au]
Sent: Sunday, February 13, 2000 11:39 AM
To: 'Babu Raj'; kamranaminyahoo.com
Subject: RE: (forte-users) Hi All....very urgent...Forte doesn't
handle La rge array properly
Hi,
This sounds almost identical to a problem we have experienced.
If it is the same problem it is because you have compiled a back-end
load-balanced partition, but NOT the router that manages it.
With such a configuration, attempts to send greater than a few thousand
rows
will fail - and it doesn't seem to matter what you set -fm to.
You don't see the problem running distributed from your workspace because
everything is interpreted.
So just compile the router and try again.
Hope this helps.
George Aberdour
(George.Aberdourdet.nsw.edu.au)
-----Original Message-----
From: Babu Raj [mailto:ibcsmartboyyahoo.com]
Sent: Saturday, 12 February 2000 7:24
To: kamranaminyahoo.com
Subject: (forte-users) Hi All....very urgent...Forte doesn't handle
Large array properly
Hi All,
Have anyone experienced problem of retrieving
more than 1500 records from the database table, into
the object.
I use dynamic SQL statement, and populating Array
object from the DBDataSet. When it runs from my
workspace distributed, it works fine. But, when I make
deployment, and install on the test bed, I face
Network connection failure from the client machine. It
looks like, server read the data from the Database,
and while packaging it, to send it across to the
client, server seems to run out ouf memory or couldn't
maintain the connection with the client. I tried to
set -fm flag on that partition, and separately setting
FORTE_GC_SPECIAL too, but still no luck.
we have increased, the rollback segment size on
Oracle too, but still no luck.
Appreciate, your suggestions, if you can,
Thank you,
Babu
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
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Re: (forte-users) Express Question

Hi,
I've done it using a dynamic DBSession manager (and dynamic dbsession
instanciation). But, you need to customize the Express Framework
(ExpressService.BusinessDBMgr) and modify the select, update, delete, execute
methods. You need also to maintain the statement cache linked to the DBsession
and manage the link between a DBsession and a task or use explicit mutex (the
aim is to have only one task assigned to a DBsession at a time : this should be
done in the DBSession Manager). If you use Dynamic DBSessions, you will also
need to add a synchronization to the DBsession Manager.
If you want to suppress the default DBSession service object, you will need to
customize the code generation. You should ask the Forte Consulting I think...
Hope this helps,
Daniel Nguyen
Freelance Forte Consultant
Url : http://perso.club-internet.fr/dnguyen/
[email protected] a écrit:
Has anyone tried replicating the partitions that contain the DBService SOs
from the Business Model (ie. DBSessions)? We are attempting to do this to
avoid single-threading access to our database and wondered if anyone had
done this successfully. Thanks for your help.
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
email the word: 'Unsubscribe' to: [email protected]

Hi,
I've done it using a dynamic DBSession manager (and dynamic dbsession
instanciation). But, you need to customize the Express Framework
(ExpressService.BusinessDBMgr) and modify the select, update, delete, execute
methods. You need also to maintain the statement cache linked to the DBsession
and manage the link between a DBsession and a task or use explicit mutex (the
aim is to have only one task assigned to a DBsession at a time : this should be
done in the DBSession Manager). If you use Dynamic DBSessions, you will also
need to add a synchronization to the DBsession Manager.
If you want to suppress the default DBSession service object, you will need to
customize the code generation. You should ask the Forte Consulting I think...
Hope this helps,
Daniel Nguyen
Freelance Forte Consultant
Url : http://perso.club-internet.fr/dnguyen/
[email protected] a écrit:
Has anyone tried replicating the partitions that contain the DBService SOs
from the Business Model (ie. DBSessions)? We are attempting to do this to
avoid single-threading access to our database and wondered if anyone had
done this successfully. Thanks for your help.
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
email the word: 'Unsubscribe' to: [email protected]

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