RE: [iPlanet-JATO] Re: Use Of models in utility classes

Hi all,
if you add the following to your spider2jato.xml
It will automatically map your CSpDataObject.executeImmediate to use
ExecuteImmediateUtil.executeImmediateSelect with the arguments mapped as
well.
Kostas
<mapping-rule>
<mapping-rule-primarymatch>
<![CDATA[CSpDataObject[.\s]*executeImmediate[\s]*$([^,]*),([^)]*)$]]>
</mapping-rule-primarymatch>
<mapping-rule-replacement>
<mapping-rule-match>
<![CDATA[CSpDataObject[.\s]*executeImmediate[\s]*$([^,]*),([^)]*)$]]>
</mapping-rule-match>
<mapping-rule-substitute>
<![CDATA[ExecuteImmediateUtil.executeImmediateSelect($1,$2,
getRequestContext())]]>
</mapping-rule-substitute>
</mapping-rule-replacement>
</mapping-rule>
-----Original Message-----
From: Matthew Stevens
Cc: vnamboori@y...
Sent: 11/29/01 11:23 AM
Subject: RE: [iPlanet-JATO] Re: Use Of models in utility classes
Namburi,
I have included an example in the file ExecuteImmediateUtil.java
The Yahoo Group will not handle the attached file we will put it in the
Files section shortly.
matt
-----Original Message-----
From: vnamboori@y... [mailto:<a href="/group/SunONE-JATO/post?protectID=081071113213093190112061186248100253094145066046167121181">vnamboori@y...</a>]
Sent: Thursday, November 29, 2001 12:29 PM
Subject: [iPlanet-JATO] Re: Use Of models in utility classes
Matt,
For CSpSelect.executeImmediate() I have an example of custom helpermethod as a replacement which uses JDBC results instead of
CSpDBResult.
Can you send me this example.
Thanks
Namburi
--- In iPlanet-JATO@y..., "Matthew Stevens" <matthew.stevens@E...>
wrote:
Namburi,
I will post a document to the group site this evening which has thedetails
on various tactics of migrating these type of utilities.Essentially, you
either need to convert these utilities to Models themselves or keepthe
utilities as is and simply use the
RequestManager.getRequestContext.getModelManager().getModel()
to statically access Models.
For CSpSelect.executeImmediate() I have an example of custom helpermethod
as a replacement whicch uses JDBC results instead of CSpDBResult.
matt
-----Original Message-----
From: vnamboori@y... [mailto:<a href="/group/SunONE-JATO/post?protectID=081071113213093190112061186248100208071048">vnamboori@y...</a>]
Sent: Tuesday, August 07, 2001 3:24 PM
Subject: [iPlanet-JATO] Use Of models in utility classes
Hi All,
In the present ND project we have lots of utility classes. These
classes in diffrent directory. Not part of nd pages.
In these classes we access the dataobjects and do the
manipulations.
So we access dataobjects directly like
CSpider.getDataObject("do....");
and then execute it.
Since the migration tool does not do much of conversion for these
utilities we have to do manually.
My question is Can we access the the models in the post migration
sameway or do we need requestContext?
We have lots of utility classes which are DataObject intensive.Can
someone suggest a better way to migrate this kind of code.
Thanks
Namburi
[email protected]
For more information about JATO, please visit:
http://developer.iplanet.com/tech/appserver/framework/index.jsp
[Non-text portions of this message have been removed]
For more information about JATO, please visit:
http://developer.iplanet.com/tech/appserver/framework/index.jsp
[Non-text portions of this message have been removed]

Similar Messages

Re: [iPlanet-JATO] Re: Use Of models in utility classes - Pease don't forget about the regular expression potential

Namburi,
When you said you used the Reg Exp tool, did you use it only as
preconfigured by the iMT migrate application wizard?
Because the default configuration of the regular expression tool will only
target the files in your ND project directories. If you wish to target
classes outside of the normal directory scope, you have to either modify the
"Source Directory" property OR create another instance of the regular
expression tool. See the "Tool" menu in the iMT to create additional tool
instances which can each be configured to target different sets of files
using different sets of rules.
Usually, I utilize 3 different sets of rules files on a given migration:
spider2jato.xml
these are the generic conversion rules (but includes the optimized rules for
ViewBean and Model based code, i.e. these rules do not utilize the
RequestManager since it is not needed for code running inside the ViewBean
or Model classes)
I run these rules against all files.
See the file download section of this forum for periodic updates to these
rules.
nonProjectFileRules.xml
these include rules that add the necessary
RequestManager.getRequestContext(). etc prefixes to many of the common
calls.
I run these rules against user module and any other classes that do not are
not ModuleServlet, ContainerView, or Model classes.
appXRules.xml
these rules include application specific changes that I discover while
working on the project. A common thing here is changing import statements
(since the migration tool moves ND project code into different jato
packaging structure, you sometime need to adjust imports in non-project
classes that previously imported ND project specific packages)
So you see, you are not limited to one set of rules at all. Just be careful
to keep track of your backups (the regexp tool provides several options in
its Expert Properties related to back up strategies).
----- Original Message -----
From: <vnamboori@y...>
Sent: Wednesday, August 08, 2001 6:08 AM
Subject: [iPlanet-JATO] Re: Use Of models in utility classes - Pease don't
forget about the regular expression potential
Thanks Matt, Mike, Todd
This is a great input for our migration. Though we used the existing
Regular Expression Mapping tool, we did not change this to meet our
own needs as mentioned by Mike.
We would certainly incorporate this to ease our migration.
Namburi
--- In iPlanet-JATO@y..., "Todd Fast" <toddwork@c...> wrote:
All--
Great response. By the way, the Regular Expression Tool uses thePerl5 RE
syntax as implemented by Apache OROMatcher. If you're doing lotsof these
sorts of migration changes manually, you should definitely buy theO'Reilly
book "Mastering Regular Expressions" and generate some rules toautomate the
conversion. Although they are definitely confusing at first,regular
expressions are fairly easy to understand with some documentation,and are
superbly effective at tackling this kind of migration task.
Todd
----- Original Message -----
From: "Mike Frisino" <Michael.Frisino@S...>
Sent: Tuesday, August 07, 2001 5:20 PM
Subject: Re: [iPlanet-JATO] Use Of models in utility classes -Pease don't
forget about the regular expression potential
Also, (and Matt's document may mention this)
Please bear in mind that this statement is not totally correct:
Since the migration tool does not do much of conversion for
these
utilities we have to do manually.Remember, the iMT is a SUITE of tools. There is the extractiontool, and
the translation tool, and the regular expression tool, and severalother
smaller tools (like the jar and compilation tools). It is correctto state
that the extraction and translation tools only significantlyconvert the
primary ND project objects (the pages, the data objects, and theproject
classes). The extraction and translation tools do minimumtranslation of the
User Module objects (i.e. they repackage the user module classes inthe new
jato module packages). It is correct that for all other utilityclasses
which are not formally part of the ND project, the extraction and
translation tools do not perform any migration.
However, the regular expression tool can "migrate" any arbitrary
file
(utility classes etc) to the degree that the regular expressionrules
correlate to the code present in the arbitrary file. So first andforemost,
if you have alot of spider code in your non-project classes youshould
consider using the regular expression tool and if warranted adding
additional rules to reduce the amount of manual adjustments thatneed to be
made. I can stress this enough. We can even help you write theregular
expression rules if you simply identify the code pattern you wish to
convert. Just because there is not already a regular expressionrule to
match your need does not mean it can't be written. We have notnearly
exhausted the possibilities.
For example if you say, we need to convert
CSpider.getDataObject("X");
To
RequestManager.getRequestContext().getModelManager().getModel(XModel.class);
Maybe we or somebody else in the list can help write that regularexpression if it has not already been written. For instance in thelast
updated spider2jato.xml file there is already aCSpider.getCommonPage("X")
rule:

<mapping-rule>
<mapping-rule-primarymatch>
<![CDATA[CSpider[.\s]*getPage[\s]*\(\"([^"]*)\"]]>
</mapping-rule-primarymatch>
<mapping-rule-replacement>
<mapping-rule-match>
<![CDATA[CSpider[.\s]*getPage[\s]*\(\"([^"]*)\"]]>
</mapping-rule-match>
<mapping-rule-substitute>
<![CDATA[getViewBean($1ViewBean.class]]>
</mapping-rule-substitute>
</mapping-rule-replacement>
</mapping-rule>
Following this example a getDataObject to getModel would look
like this:
<mapping-rule>
<mapping-rule-primarymatch>
<![CDATA[CSpider[.\s]*getDataObject[\s]*\(\"([^"]*)\"]]>
</mapping-rule-primarymatch>
<mapping-rule-replacement>
<mapping-rule-match>
<![CDATA[CSpider[.\s]*getDataObject[\s]*\(\"([^"]*)\"]]>
</mapping-rule-match>
<mapping-rule-substitute>
<![CDATA[getModel($1Model.class]]>
</mapping-rule-substitute>
</mapping-rule-replacement>
</mapping-rule>
In fact, one migration developer already wrote that rule andsubmitted it
for inclusion in the basic set. I will post another upgrade to thebasic
regular expression rule set, look for a "file uploaded" posting.Also,
please consider contributing any additional generic rules that youhave
written for inclusion in the basic set.
Please not, that in some cases (Utility classes in particular)
the rule
application may be more effective as TWO sequention rules ratherthan one
monolithic rule. Again using the example above, it will convert
CSpider.getDataObject("Foo");
To
getModel(FooModel.class);
Now that is the most effective conversion for that code if that
code is in
a page or data object class file. But if that code is in a Utilityclass you
really want:
>
RequestManager.getRequestContext().getModelManager().getModel(FooModel.class
So to go from
getModel(FooModel.class);
To
RequestManager.getRequestContext().getModelManager().getModel(FooModel.class
You would apply a second rule AND you would ONLY run this rule
against
your utility classes so that you would not otherwise affect yourViewBean
and Model classes which are completely fine with the simplegetModel call.
<mapping-rule>
<mapping-rule-primarymatch>
<![CDATA[getModel$]]>
</mapping-rule-primarymatch>
<mapping-rule-replacement>
<mapping-rule-match>
<![CDATA[getModel\(]]>
</mapping-rule-match>
<mapping-rule-substitute>
<![CDATA[RequestManager.getRequestContext().getModelManager().getModel(]]>
</mapping-rule-substitute>
</mapping-rule-replacement>
</mapping-rule>
A similer rule can be applied to getSession and other CSpider APIcalls.
For instance here is the rule for converting getSession calls toleverage
the RequestManager.
<mapping-rule>
<mapping-rule-primarymatch>
<![CDATA[getSession\($\.]]>
</mapping-rule-primarymatch>
<mapping-rule-replacement>
<mapping-rule-match>
<![CDATA[getSession\.]]>
</mapping-rule-match>
<mapping-rule-substitute>
<![CDATA[RequestManager.getSession().]]>
</mapping-rule-substitute>
</mapping-rule-replacement>
</mapping-rule>
----- Original Message -----
From: "Matthew Stevens" <matthew.stevens@e...>
Sent: Tuesday, August 07, 2001 12:56 PM
Subject: RE: [iPlanet-JATO] Use Of models in utility classes
Namburi,
I will post a document to the group site this evening which has
the
details
on various tactics of migrating these type of utilities.
Essentially,
you
either need to convert these utilities to Models themselves or
keep the
utilities as is and simply use the
RequestManager.getRequestContext.getModelManager().getModel()
to statically access Models.
For CSpSelect.executeImmediate() I have an example of customhelper
method
as a replacement whicch uses JDBC results instead of
CSpDBResult.
matt
-----Original Message-----
From: vnamboori@y... [mailto:<a href="/group/SunONE-JATO/post?protectID=081071113213093190112061186248100208071048">vnamboori@y...</a>]
Sent: Tuesday, August 07, 2001 3:24 PM
Subject: [iPlanet-JATO] Use Of models in utility classes
Hi All,
In the present ND project we have lots of utility classes.
These
classes in diffrent directory. Not part of nd pages.
In these classes we access the dataobjects and do themanipulations.
So we access dataobjects directly like
CSpider.getDataObject("do....");
and then execute it.
Since the migration tool does not do much of conversion forthese
utilities we have to do manually.
My question is Can we access the the models in the postmigration
sameway or do we need requestContext?
We have lots of utility classes which are DataObjectintensive. Can
someone suggest a better way to migrate this kind of code.
Thanks
Namburi
[email protected]
[email protected]
[Non-text portions of this message have been removed]
[email protected]
[email protected]

Namburi,
When you said you used the Reg Exp tool, did you use it only as
preconfigured by the iMT migrate application wizard?
Because the default configuration of the regular expression tool will only
target the files in your ND project directories. If you wish to target
classes outside of the normal directory scope, you have to either modify the
"Source Directory" property OR create another instance of the regular
expression tool. See the "Tool" menu in the iMT to create additional tool
instances which can each be configured to target different sets of files
using different sets of rules.
Usually, I utilize 3 different sets of rules files on a given migration:
spider2jato.xml
these are the generic conversion rules (but includes the optimized rules for
ViewBean and Model based code, i.e. these rules do not utilize the
RequestManager since it is not needed for code running inside the ViewBean
or Model classes)
I run these rules against all files.
See the file download section of this forum for periodic updates to these
rules.
nonProjectFileRules.xml
these include rules that add the necessary
RequestManager.getRequestContext(). etc prefixes to many of the common
calls.
I run these rules against user module and any other classes that do not are
not ModuleServlet, ContainerView, or Model classes.
appXRules.xml
these rules include application specific changes that I discover while
working on the project. A common thing here is changing import statements
(since the migration tool moves ND project code into different jato
packaging structure, you sometime need to adjust imports in non-project
classes that previously imported ND project specific packages)
So you see, you are not limited to one set of rules at all. Just be careful
to keep track of your backups (the regexp tool provides several options in
its Expert Properties related to back up strategies).
----- Original Message -----
From: <vnamboori@y...>
Sent: Wednesday, August 08, 2001 6:08 AM
Subject: [iPlanet-JATO] Re: Use Of models in utility classes - Pease don't
forget about the regular expression potential
Thanks Matt, Mike, Todd
This is a great input for our migration. Though we used the existing
Regular Expression Mapping tool, we did not change this to meet our
own needs as mentioned by Mike.
We would certainly incorporate this to ease our migration.
Namburi
--- In iPlanet-JATO@y..., "Todd Fast" <toddwork@c...> wrote:
All--
Great response. By the way, the Regular Expression Tool uses thePerl5 RE
syntax as implemented by Apache OROMatcher. If you're doing lotsof these
sorts of migration changes manually, you should definitely buy theO'Reilly
book "Mastering Regular Expressions" and generate some rules toautomate the
conversion. Although they are definitely confusing at first,regular
expressions are fairly easy to understand with some documentation,and are
superbly effective at tackling this kind of migration task.
Todd
----- Original Message -----
From: "Mike Frisino" <Michael.Frisino@S...>
Sent: Tuesday, August 07, 2001 5:20 PM
Subject: Re: [iPlanet-JATO] Use Of models in utility classes -Pease don't
forget about the regular expression potential
Also, (and Matt's document may mention this)
Please bear in mind that this statement is not totally correct:
Since the migration tool does not do much of conversion for
these
utilities we have to do manually.Remember, the iMT is a SUITE of tools. There is the extractiontool, and
the translation tool, and the regular expression tool, and severalother
smaller tools (like the jar and compilation tools). It is correctto state
that the extraction and translation tools only significantlyconvert the
primary ND project objects (the pages, the data objects, and theproject
classes). The extraction and translation tools do minimumtranslation of the
User Module objects (i.e. they repackage the user module classes inthe new
jato module packages). It is correct that for all other utilityclasses
which are not formally part of the ND project, the extraction and
translation tools do not perform any migration.
However, the regular expression tool can "migrate" any arbitrary
file
(utility classes etc) to the degree that the regular expressionrules
correlate to the code present in the arbitrary file. So first andforemost,
if you have alot of spider code in your non-project classes youshould
consider using the regular expression tool and if warranted adding
additional rules to reduce the amount of manual adjustments thatneed to be
made. I can stress this enough. We can even help you write theregular
expression rules if you simply identify the code pattern you wish to
convert. Just because there is not already a regular expressionrule to
match your need does not mean it can't be written. We have notnearly
exhausted the possibilities.
For example if you say, we need to convert
CSpider.getDataObject("X");
To
RequestManager.getRequestContext().getModelManager().getModel(XModel.class);
Maybe we or somebody else in the list can help write that regularexpression if it has not already been written. For instance in thelast
updated spider2jato.xml file there is already aCSpider.getCommonPage("X")
rule:

<mapping-rule>
<mapping-rule-primarymatch>
<![CDATA[CSpider[.\s]*getPage[\s]*\(\"([^"]*)\"]]>
</mapping-rule-primarymatch>
<mapping-rule-replacement>
<mapping-rule-match>
<![CDATA[CSpider[.\s]*getPage[\s]*\(\"([^"]*)\"]]>
</mapping-rule-match>
<mapping-rule-substitute>
<![CDATA[getViewBean($1ViewBean.class]]>
</mapping-rule-substitute>
</mapping-rule-replacement>
</mapping-rule>
Following this example a getDataObject to getModel would look
like this:
<mapping-rule>
<mapping-rule-primarymatch>
<![CDATA[CSpider[.\s]*getDataObject[\s]*\(\"([^"]*)\"]]>
</mapping-rule-primarymatch>
<mapping-rule-replacement>
<mapping-rule-match>
<![CDATA[CSpider[.\s]*getDataObject[\s]*\(\"([^"]*)\"]]>
</mapping-rule-match>
<mapping-rule-substitute>
<![CDATA[getModel($1Model.class]]>
</mapping-rule-substitute>
</mapping-rule-replacement>
</mapping-rule>
In fact, one migration developer already wrote that rule andsubmitted it
for inclusion in the basic set. I will post another upgrade to thebasic
regular expression rule set, look for a "file uploaded" posting.Also,
please consider contributing any additional generic rules that youhave
written for inclusion in the basic set.
Please not, that in some cases (Utility classes in particular)
the rule
application may be more effective as TWO sequention rules ratherthan one
monolithic rule. Again using the example above, it will convert
CSpider.getDataObject("Foo");
To
getModel(FooModel.class);
Now that is the most effective conversion for that code if that
code is in
a page or data object class file. But if that code is in a Utilityclass you
really want:
>
RequestManager.getRequestContext().getModelManager().getModel(FooModel.class
So to go from
getModel(FooModel.class);
To
RequestManager.getRequestContext().getModelManager().getModel(FooModel.class
You would apply a second rule AND you would ONLY run this rule
against
your utility classes so that you would not otherwise affect yourViewBean
and Model classes which are completely fine with the simplegetModel call.
<mapping-rule>
<mapping-rule-primarymatch>
<![CDATA[getModel$]]>
</mapping-rule-primarymatch>
<mapping-rule-replacement>
<mapping-rule-match>
<![CDATA[getModel\(]]>
</mapping-rule-match>
<mapping-rule-substitute>
<![CDATA[RequestManager.getRequestContext().getModelManager().getModel(]]>
</mapping-rule-substitute>
</mapping-rule-replacement>
</mapping-rule>
A similer rule can be applied to getSession and other CSpider APIcalls.
For instance here is the rule for converting getSession calls toleverage
the RequestManager.
<mapping-rule>
<mapping-rule-primarymatch>
<![CDATA[getSession\($\.]]>
</mapping-rule-primarymatch>
<mapping-rule-replacement>
<mapping-rule-match>
<![CDATA[getSession\.]]>
</mapping-rule-match>
<mapping-rule-substitute>
<![CDATA[RequestManager.getSession().]]>
</mapping-rule-substitute>
</mapping-rule-replacement>
</mapping-rule>
----- Original Message -----
From: "Matthew Stevens" <matthew.stevens@e...>
Sent: Tuesday, August 07, 2001 12:56 PM
Subject: RE: [iPlanet-JATO] Use Of models in utility classes
Namburi,
I will post a document to the group site this evening which has
the
details
on various tactics of migrating these type of utilities.
Essentially,
you
either need to convert these utilities to Models themselves or
keep the
utilities as is and simply use the
RequestManager.getRequestContext.getModelManager().getModel()
to statically access Models.
For CSpSelect.executeImmediate() I have an example of customhelper
method
as a replacement whicch uses JDBC results instead of
CSpDBResult.
matt
-----Original Message-----
From: vnamboori@y... [mailto:<a href="/group/SunONE-JATO/post?protectID=081071113213093190112061186248100208071048">vnamboori@y...</a>]
Sent: Tuesday, August 07, 2001 3:24 PM
Subject: [iPlanet-JATO] Use Of models in utility classes
Hi All,
In the present ND project we have lots of utility classes.
These
classes in diffrent directory. Not part of nd pages.
In these classes we access the dataobjects and do themanipulations.
So we access dataobjects directly like
CSpider.getDataObject("do....");
and then execute it.
Since the migration tool does not do much of conversion forthese
utilities we have to do manually.
My question is Can we access the the models in the postmigration
sameway or do we need requestContext?
We have lots of utility classes which are DataObjectintensive. Can
someone suggest a better way to migrate this kind of code.
Thanks
Namburi
[email protected]
[email protected]
[Non-text portions of this message have been removed]
[email protected]
[email protected]

Re: [iPlanet-JATO] Use Of models in utility classes

Hi Matt,
Sounds like some of the stuff we need to migrate has a lot in common with
Namburi's project.
I would be very keen to get hold of a copy of the 'tactic' document you
mention below, as well as the sample code you mention to replace CspDBResult
stuff with JDBC results.
Thanks in advance,
Phil
----- Original Message -----
From: Matthew Stevens <matthew.stevens@E...>
Sent: Wednesday, August 08, 2001 7:56 AM
Subject: RE: [iPlanet-JATO] Use Of models in utility classes
Namburi,
I will post a document to the group site this evening which has thedetails
on various tactics of migrating these type of utilities. Essentially, you
either need to convert these utilities to Models themselves or keep the
utilities as is and simply use the
RequestManager.getRequestContext.getModelManager().getModel()
to statically access Models.
For CSpSelect.executeImmediate() I have an example of custom helper method
as a replacement whicch uses JDBC results instead of CSpDBResult.
matt
-----Original Message-----
From: vnamboori@y... [mailto:<a href="/group/SunONE-JATO/post?protectID=081071113213093190112061186248100253094145066046167121181">vnamboori@y...</a>]
Sent: Tuesday, August 07, 2001 3:24 PM
Subject: [iPlanet-JATO] Use Of models in utility classes
Hi All,
In the present ND project we have lots of utility classes. These
classes in diffrent directory. Not part of nd pages.
In these classes we access the dataobjects and do the manipulations.
So we access dataobjects directly like
CSpider.getDataObject("do....");
and then execute it.
Since the migration tool does not do much of conversion for these
utilities we have to do manually.
My question is Can we access the the models in the post migration
sameway or do we need requestContext?
We have lots of utility classes which are DataObject intensive. Can
someone suggest a better way to migrate this kind of code.
Thanks
Namburi
[email protected]
[email protected]

Hi Matt,
Sounds like some of the stuff we need to migrate has a lot in common with
Namburi's project.
I would be very keen to get hold of a copy of the 'tactic' document you
mention below, as well as the sample code you mention to replace CspDBResult
stuff with JDBC results.
Thanks in advance,
Phil
----- Original Message -----
From: Matthew Stevens <matthew.stevens@E...>
Sent: Wednesday, August 08, 2001 7:56 AM
Subject: RE: [iPlanet-JATO] Use Of models in utility classes
Namburi,
I will post a document to the group site this evening which has thedetails
on various tactics of migrating these type of utilities. Essentially, you
either need to convert these utilities to Models themselves or keep the
utilities as is and simply use the
RequestManager.getRequestContext.getModelManager().getModel()
to statically access Models.
For CSpSelect.executeImmediate() I have an example of custom helper method
as a replacement whicch uses JDBC results instead of CSpDBResult.
matt
-----Original Message-----
From: vnamboori@y... [mailto:<a href="/group/SunONE-JATO/post?protectID=081071113213093190112061186248100253094145066046167121181">vnamboori@y...</a>]
Sent: Tuesday, August 07, 2001 3:24 PM
Subject: [iPlanet-JATO] Use Of models in utility classes
Hi All,
In the present ND project we have lots of utility classes. These
classes in diffrent directory. Not part of nd pages.
In these classes we access the dataobjects and do the manipulations.
So we access dataobjects directly like
CSpider.getDataObject("do....");
and then execute it.
Since the migration tool does not do much of conversion for these
utilities we have to do manually.
My question is Can we access the the models in the post migration
sameway or do we need requestContext?
We have lots of utility classes which are DataObject intensive. Can
someone suggest a better way to migrate this kind of code.
Thanks
Namburi
[email protected]
[email protected]

Re: [iPlanet-JATO] Re: using begin childName Display method

Steve,
It sounds like you have your display fields in a container view, and
that container view is inside of a view bean. I haven't tested whether
the fireChildDisplayEvents has a "deep" effect on its container view
children. Meaning that you may have to set fireChildDisplayEvents="true"
for the <jato:containerView> tag instead. If all else fails and you need
to just get it working, you can set the fireDisplayEvents="true" for
each display field tag separately.
craig
stephen_winer wrote:
I should clarify my earlier statement. The data I want to display is
coming from a model (tied in in the createChild method). I want to
conditionally reformat the text that is being substituted in the JSP
for a JATO form element, but I want this to happen on the server, not
with JavaScript. The begin<childName>Display and
end<childName>Display methods allow me to do this, in theory, but I
can not get them to execute.
Steve
--- In iPlanet-JATO@y..., Belinda Garcia <belinda.garcia@s...> wrote:
I don't currently use a begin or end Display method. I merely bind
the fields to
the model when the child is created and use the setValue to
initially set the
value to what's in the model. I get nulls though if I try to use a
tiled View. I
haven't quite got this figured out.
Belinda
X-eGroups-Return:
sentto-2343287-1135-1008613974-belinda.garcia=sun.com@r...
X-Sender: stephen_winer@y...
User-Agent: eGroups-EW/0.82
From: "stephen_winer" <stephen_winer@y...>
X-Originating-IP: 155.188.191.4
X-Yahoo-Profile: stephen_winer
Mailing-List: list iPlanet-JATO@y...; contact
iPlanet-JATO-owner@y...
Date: Mon, 17 Dec 2001 18:32:48 -0000
Subject: [iPlanet-JATO] using begin<childName>Display method
Content-Transfer-Encoding: 7bit
I want to be able to conditionally show/hide data as well as
format
it for display without touching the model. I found the
begin<childName>Display and end<childName>Display methods that
provide the hooks to do this, but I have been unsuccessful in
getting
these method to execute. I added the
fireChildDisplayEvents="true"
attribute to the jato:useViewBean tag, but this has not helped.
I
also added some debug to the ContainerViewBase class in the
public
boolean beginChildDisplay(ChildDisplayEvent event) method to see
what
was happening. The displayMethodMap was returning null for the
child
display methods that were in the view bean. I covered all the
bases
(compiling, redeploying, etc.) and nothing has worked. Is there
anything I am missing or is there some working example of this?
Steve
For more information about JATO, please visit:
http://developer.iplanet.com/tech/appserver/framework/index.jsp
>For more information about JATO, please visit:
http://developer.iplanet.com/tech/appserver/framework/index.jsp

The hidden field was present in the page, but it looked like this:
<input type="hidden" name="jato.defaultCommand" value=""../search"">
Seems like there is a small bug in the code generating this tag.
FYI - I am using JATO1.2
What file displays this text? Maybe I can go in and fix it and rejar
it.
Steve
--- Mike Frisino wrote:
Steve,
Can you check the HTML source that shows up in the browser? Do you see an entry that looks like this at the bottom of the form in
question?
>
<input type="hidden" name="jato.defaultCommand" value="/search">
To answer your question - it should work as you described. Some of the JatoSample make use of the defaultCommandChild. Can you try
running the sample BasicSample->Field Types and let us know what you
see.
>
Failing this you can send me your jsp file , maybe there is some subtle issue there. michael.frisino@s...
>
>
----- Original Message -----
From: stephen_winer
Sent: Friday, December 07, 2001 8:05 AM
Subject: [iPlanet-JATO] Using the defaultCommandChild in a form
I am trying to set the defaultCommandChild in my jato:form tag to be
the searcg button. The search button definition is:
<jato:button name="search"/>.
The form tag definition is:
<jato:form name="PendingIA" defaultCommandChild="/search">
Clicking on the search button works fine, but hitting return in one
of the textFields (which submits the form) passes a value of "" to
the createChild method in my viewBean, which throws an error. Why
does this not just work as normal and trigger the handleSearchRequest
() method?
Steve
For more information about JATO, please visit:
http://developer.iplanet.com/tech/appserver/framework/index.jsp
Service.
>
>
>
[Non-text portions of this message have been removed]

Design Advice Request - Using JDBC in a utility class

I have a utility class that I would like to use from any client code, regardless of whether that code is executing in a transaction or not.
          This seems to greatly complicate the JDBC access from within the utility class. I appreciate any advice.
          The utility class may both read from and write to the database. It currently attempts to detect whether it is in a transaction (it tests whether TransactionHelper.getTransactionHelper().getTransaction() is null to do this -- please point out if there is a better way.)
          If in a transaction, the utility uses a data source which is linked to an XA connection pool, since it must assume other database activity may be occurring on the tx. If not in a transaction, however, it uses a data source linked to a non-XA connection pool, since the XA connection pool will not work outside of a transaction.
          It seems like there should be an easier way -- are we overlooking some simpler solution?
          The database is Oracle 9i and we are using the Oracle thin drivers.
          Thanks in advance,
          Ken Clark

Ken Clark wrote:
          > I am not sure what you mean by this:
          >
          > "do all your JDBC work in the
          > scope of a top-level method (or methods)
          > with *all* jdbc variables method-level
          > variables,"
          I saw the code you sent me, and that is what it does, so no worries here.
          >
          > I originally built this with a non-XA DataSource, but found that when the utility was called from within a transaction, I would get errors that there was already a connection in use and that I therefore needed to use an XA connection.
          >
          > Switching to XA DataSource fixed that problem, but then in other cases when not in a transaction, I would get errors saying that an XA Connection could not be used outside a transaction.
          >
          > Since my utility has no control over the callers state, I came up with the solution stated previously, where I determine if in a Tx and then use the corresponding DataSource.
          >
          > Is there just a matter of configuration such that I can use a non-XA DS in all cases?
          I am saying a non transactional DataSource, not a non XA data source. Ie, a datasource that
          is unaware of whether there is a UserTransaction underway. A transactional data source can
          be either XA or not. In the former case, multiple XA connections can and will be entrained
          in any ongoing transactino, and non-XA (but transactional) datasources can and will be
          used in a tx, but only one per tx because they have no 2-phase commit capability.
          Ie; In the config file, you will see TxDataSource for a transactional datasource
          to a pool (whether XA or not), and you will see DataSource for a non-transactional
          data source.
          Joe

Re: [iPlanet-JATO] Experiencing problem while executing model.

Hi Todd,
Thanks a lot for your input!
In the case , I found that "TO_CHAR(PLAN_DT, 'MM/DD/YYYY')" is alaised as a
column name in the resultset. So I am using this as a column in Jato
Descriptor for Plan_Dt. Now it is working fine.
Thanks and Regards,
Santa.
----- Original Message -----
From: Todd Fast <toddwork@c...>
Sent: Thursday, July 26, 2001 9:50 AM
Subject: Re: [iPlanet-JATO] Experiencing problem while executing model.
Santa--
I am experiencing a problem while executing a bounded model. I am usingQueryModelBase. Whenever the following query gets executed inonBeforeModel
execute of TiledView, it throws an exception describing "PLAN_DT not found
in ResultSet". If you execute this query on the SQL prompt then we getrows
of data. Please could you tell us how the mapping between model and
resultset works ? And what changes do we have to make to execute thisquery.
>>
SELECT PART_NM,NEWTXTDOLL
TO_CHAR(PLAN_DT, 'MM/DD/YYYY'),
FROM cpsselect
WHERE CHG_DT >= TO_DATE('2001-06-17', 'YYYY-MM-DD')The mapping of result set to model is done via JDBC, using the columnnames
you provide in your model's column descriptors. It sounds as if you are
providing the column name "PLAN_DT" in a descriptor, and when the model
tries to look up that column in the result set, there is no such columnand
the operation fails.
In order to debug this, you should try running your query with a JDBC
connection, not SQL*Plus or your command-line SQL tool. What you need to
find out is how the expresion "TO_CHAR(PLAN_DT, 'MM/DD/YYYY')" is aliasedas
a column name in the resut set. The easiest way to do this is to write a
simple class that does nothing but use your JDBC driver to connect the
database and execute this query. After execution, use theResultSetMetaData
information to find out the column names for the result set. Then, use
these column names in your JATO column descriptors.
Another Problem:We are not getting the values for NEWTXTDOLL column whenwe try to display it in a Tiled View.
I'm sorry, this isn't enough information for me to offer any suggestions.
Using the technique above, determine which columns are coming back in the
result set, and make sure your display fields in the TiledView are boundto
those column names. The problem could be something as simple as a typo in
the field's bound name, or something more complex like the column in the
result set being named something you don't expect.
Another approach might be to alias the columns yourself using the "AS
<alias>" expression, and assign them names that you choose instead ofusing
the names assigned by the database or JDBC driver.
Todd
[email protected]
The Information contained and transmitted by this E-MAIL is proprietary to
Wipro Limited and is intended for use only by the individual or entity to
which
it is addressed, and may contain information that is privileged, confidential
or
exempt from disclosure under applicable law. If this is a forwarded message,
the content of this E-MAIL may not have been sent with the authority of the
Company. If you are not the intended recipient, an agent of the intended
recipient or a person responsible for delivering the information to the named
recipient, you are notified that any use, distribution, transmission,
printing,
copying or dissemination of this information in any way or in any manner is
strictly prohibited. If you have received this communication in error, please
delete this mail & notify us immediately at mailadmin@w...
[Non-text portions of this message have been removed]

Hi Todd,
Thanks a lot for your input!
In the case , I found that "TO_CHAR(PLAN_DT, 'MM/DD/YYYY')" is alaised as a
column name in the resultset. So I am using this as a column in Jato
Descriptor for Plan_Dt. Now it is working fine.
Thanks and Regards,
Santa.
----- Original Message -----
From: Todd Fast <toddwork@c...>
Sent: Thursday, July 26, 2001 9:50 AM
Subject: Re: [iPlanet-JATO] Experiencing problem while executing model.
Santa--
I am experiencing a problem while executing a bounded model. I am usingQueryModelBase. Whenever the following query gets executed inonBeforeModel
execute of TiledView, it throws an exception describing "PLAN_DT not found
in ResultSet". If you execute this query on the SQL prompt then we getrows
of data. Please could you tell us how the mapping between model and
resultset works ? And what changes do we have to make to execute thisquery.
>>
SELECT PART_NM,NEWTXTDOLL
TO_CHAR(PLAN_DT, 'MM/DD/YYYY'),
FROM cpsselect
WHERE CHG_DT >= TO_DATE('2001-06-17', 'YYYY-MM-DD')The mapping of result set to model is done via JDBC, using the columnnames
you provide in your model's column descriptors. It sounds as if you are
providing the column name "PLAN_DT" in a descriptor, and when the model
tries to look up that column in the result set, there is no such columnand
the operation fails.
In order to debug this, you should try running your query with a JDBC
connection, not SQL*Plus or your command-line SQL tool. What you need to
find out is how the expresion "TO_CHAR(PLAN_DT, 'MM/DD/YYYY')" is aliasedas
a column name in the resut set. The easiest way to do this is to write a
simple class that does nothing but use your JDBC driver to connect the
database and execute this query. After execution, use theResultSetMetaData
information to find out the column names for the result set. Then, use
these column names in your JATO column descriptors.
Another Problem:We are not getting the values for NEWTXTDOLL column whenwe try to display it in a Tiled View.
I'm sorry, this isn't enough information for me to offer any suggestions.
Using the technique above, determine which columns are coming back in the
result set, and make sure your display fields in the TiledView are boundto
those column names. The problem could be something as simple as a typo in
the field's bound name, or something more complex like the column in the
result set being named something you don't expect.
Another approach might be to alias the columns yourself using the "AS
<alias>" expression, and assign them names that you choose instead ofusing
the names assigned by the database or JDBC driver.
Todd
[email protected]
The Information contained and transmitted by this E-MAIL is proprietary to
Wipro Limited and is intended for use only by the individual or entity to
which
it is addressed, and may contain information that is privileged, confidential
or
exempt from disclosure under applicable law. If this is a forwarded message,
the content of this E-MAIL may not have been sent with the authority of the
Company. If you are not the intended recipient, an agent of the intended
recipient or a person responsible for delivering the information to the named
recipient, you are notified that any use, distribution, transmission,
printing,
copying or dissemination of this information in any way or in any manner is
strictly prohibited. If you have received this communication in error, please
delete this mail & notify us immediately at mailadmin@w...
[Non-text portions of this message have been removed]

Re: [iPlanet-JATO] using begin childName Display method

Oops. Sorry about that, Craig. I didn't realize I might leave that impression.
I'm sure the tiled
views work since you have so many examples of these and it's a relatively
simple concept, isn't it?
Not to mention a necessary one. I didn't have time to debug my code and find
out what I was doing
wrong where the tiled views are concerned. I decide to just try to implement
tiled views later and
just stick with one of everything for now and get that working.
Yes, I have reviewed your comments and am taking them into consideration. I am
able to save and
retrieve values with my model at this point.
Thanks.
Belinda
X-eGroups-Return:
sentto-2343287-1143-1008622698-belinda.garcia=sun.com@r...
X-Sender: craig.conover@s...
User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.0; en-US; rv:0.9.4)Gecko/20011019 Netscape6/6.2
X-Accept-Language: en-us
From: "Craig V. Conover" <craig.conover@s...>
X-Yahoo-Profile: cvconover
Mailing-List: list [email protected]; contact
[email protected]
Date: Mon, 17 Dec 2001 13:00:10 -0800
Subject: Re: [iPlanet-JATO] using begin<childName>Display method
Content-Transfer-Encoding: 7bit
Belinda,
He may also be binding the models, howerver, he needs to change the way
the value appears before it is displayed which is why you would use the
display events.
Your null value issue is a completely different issue and has nothing to
do with it being a tiled view. I don't want anyone getting the idea
that the tiledView binding is broken. It does work. You issue should
have something to do with the inconsistent way in which you are getting
your model. At least from what I could tell in your source code that you
sent me.
Have you reviewed my comments I sent to you in your source code?
craig
Belinda Garcia wrote:
I don't currently use a begin or end Display method. I merely bind the
fields to
the model when the child is created and use the setValue to initially setthe
value to what's in the model. I get nulls though if I try to use a tiledView. I
haven't quite got this figured out.
Belinda
X-eGroups-Return:
sentto-2343287-1135-1008613974-belinda.garcia=sun.com@r...
X-Sender: stephen_winer@y...
User-Agent: eGroups-EW/0.82
From: "stephen_winer" <stephen_winer@y...>
X-Originating-IP: 155.188.191.4
X-Yahoo-Profile: stephen_winer
Mailing-List: list [email protected]; contact
[email protected]
Date: Mon, 17 Dec 2001 18:32:48 -0000
Subject: [iPlanet-JATO] using begin<childName>Display method
Content-Transfer-Encoding: 7bit
I want to be able to conditionally show/hide data as well as format
it for display without touching the model. I found the
begin<childName>Display and end<childName>Display methods that
provide the hooks to do this, but I have been unsuccessful in getting
these method to execute. I added the fireChildDisplayEvents="true"
attribute to the jato:useViewBean tag, but this has not helped. I
also added some debug to the ContainerViewBase class in the public
boolean beginChildDisplay(ChildDisplayEvent event) method to see what
was happening. The displayMethodMap was returning null for the child
display methods that were in the view bean. I covered all the bases
(compiling, redeploying, etc.) and nothing has worked. Is there
anything I am missing or is there some working example of this?
Steve
For more information about JATO, please visit:
http://developer.iplanet.com/tech/appserver/framework/index.jsp
For more information about JATO, please visit:
http://developer.iplanet.com/tech/appserver/framework/index.jsp
For more information about JATO, please visit:
http://developer.iplanet.com/tech/appserver/framework/index.jsp

The hidden field was present in the page, but it looked like this:
<input type="hidden" name="jato.defaultCommand" value=""../search"">
Seems like there is a small bug in the code generating this tag.
FYI - I am using JATO1.2
What file displays this text? Maybe I can go in and fix it and rejar
it.
Steve
--- Mike Frisino wrote:
Steve,
Can you check the HTML source that shows up in the browser? Do you see an entry that looks like this at the bottom of the form in
question?
>
<input type="hidden" name="jato.defaultCommand" value="/search">
To answer your question - it should work as you described. Some of the JatoSample make use of the defaultCommandChild. Can you try
running the sample BasicSample->Field Types and let us know what you
see.
>
Failing this you can send me your jsp file , maybe there is some subtle issue there. michael.frisino@s...
>
>
----- Original Message -----
From: stephen_winer
Sent: Friday, December 07, 2001 8:05 AM
Subject: [iPlanet-JATO] Using the defaultCommandChild in a form
I am trying to set the defaultCommandChild in my jato:form tag to be
the searcg button. The search button definition is:
<jato:button name="search"/>.
The form tag definition is:
<jato:form name="PendingIA" defaultCommandChild="/search">
Clicking on the search button works fine, but hitting return in one
of the textFields (which submits the form) passes a value of "" to
the createChild method in my viewBean, which throws an error. Why
does this not just work as normal and trigger the handleSearchRequest
() method?
Steve
For more information about JATO, please visit:
http://developer.iplanet.com/tech/appserver/framework/index.jsp
Service.
>
>
>
[Non-text portions of this message have been removed]

RE: [iPlanet-JATO] models

Belinda,
YES & YES
What you are asking to do is EXACTLY what one of the primary value
propositions of the JATO design. The JATO Overview 'whitepaper'
specifically points this out as a limitation of other MVC frameworks. The
constructors of the Views require the designation of a Model; this is where
you would hook your Views (DisplayFields) into various Models. Please note
that there is no coupling of the Views and Models so there is a many to many
relationship (of your choosing). Please note that the 'accessor' methods
(setters and getters) [other than the Model interface prescribed getValue()
setValue() getValues() setValues() methods] are no related to the
DisplayField design pattern per se. The DisplayFields will manage data on
the request and response cycles using the getValue()/setValue() methods.
This is what lets the model view relationship plugable. The accessors in
the Model are not required for the View pattern. The implementation of a
specific Model's getValue()/setValue() may be to utilize the special
accessors...but they are not used by the DisplayFields directly.
matt
-----Original Message-----
From: Belinda Garcia [mailto:<a href="/group/SunONE-JATO/post?protectID=014056235009078154169082148140172241239144044214017123152006048067">belinda.garcia@s...</a>]
Sent: Tuesday, December 04, 2001 5:29 PM
Subject: [iPlanet-JATO] models
1. Do all the member variables (those connected to setters and getters) of a
model have
to be bound to the display fields of a view that is using it? In other
words, say I
have a model with 10 member variables with 10 setters and getters for them
but I have a
view that's only using 5 of these member variables. I'm asking this because
maybe I
would like to have a model that represents more than one view, if this is
possible.
2. Can a view have more than one model for its display fields? I don't mean
an
executing, retrieving, etc. I mean the display fields themselves. Where the
data for
one field is retrieved from one model and the data for another field is
retrieved from
another model? Or say, I want to retrieve some static text fields from
property files
for localization but the other fields from a model?
For more information about JATO, please visit:
http://developer.iplanet.com/tech/appserver/framework/index.jsp

Belinda,
YES & YES
What you are asking to do is EXACTLY what one of the primary value
propositions of the JATO design. The JATO Overview 'whitepaper'
specifically points this out as a limitation of other MVC frameworks. The
constructors of the Views require the designation of a Model; this is where
you would hook your Views (DisplayFields) into various Models. Please note
that there is no coupling of the Views and Models so there is a many to many
relationship (of your choosing). Please note that the 'accessor' methods
(setters and getters) [other than the Model interface prescribed getValue()
setValue() getValues() setValues() methods] are no related to the
DisplayField design pattern per se. The DisplayFields will manage data on
the request and response cycles using the getValue()/setValue() methods.
This is what lets the model view relationship plugable. The accessors in
the Model are not required for the View pattern. The implementation of a
specific Model's getValue()/setValue() may be to utilize the special
accessors...but they are not used by the DisplayFields directly.
matt
-----Original Message-----
From: Belinda Garcia [mailto:<a href="/group/SunONE-JATO/post?protectID=014056235009078154169082148140172241239144044214017123152006048067">belinda.garcia@s...</a>]
Sent: Tuesday, December 04, 2001 5:29 PM
Subject: [iPlanet-JATO] models
1. Do all the member variables (those connected to setters and getters) of a
model have
to be bound to the display fields of a view that is using it? In other
words, say I
have a model with 10 member variables with 10 setters and getters for them
but I have a
view that's only using 5 of these member variables. I'm asking this because
maybe I
would like to have a model that represents more than one view, if this is
possible.
2. Can a view have more than one model for its display fields? I don't mean
an
executing, retrieving, etc. I mean the display fields themselves. Where the
data for
one field is retrieved from one model and the data for another field is
retrieved from
another model? Or say, I want to retrieve some static text fields from
property files
for localization but the other fields from a model?
For more information about JATO, please visit:
http://developer.iplanet.com/tech/appserver/framework/index.jsp

Re: [iPlanet-JATO] Data model(Dataobject in Nd5)

Sn,
Computed columns need special attention.
The migration tool creates a QueryFieldSchema for each Model (DataObject).
The schema is populated with entries for each of the "data fields" needed by
that query. For example:
FIELD_SCHEMA.addFieldDescriptor(
new QueryFieldDescriptor(
FIELD_NDNWORDERS_ORDERID,
COLUMN_NDNWORDERS_ORDERID,
QUALIFIED_COLUMN_NDNWORDERS_ORDERID,
Integer.class,
false,
false,
QueryFieldDescriptor.APPLICATION_INSERT_VALUE_SOURCE,
QueryFieldDescriptor.ON_EMPTY_VALUE_EXCLUDE,
The query field descriptor describes the "metadata" for a given field:
QueryFieldDescriptor(java.lang.String logicalName, java.lang.String
columnName, java.lang.String qualifiedColumnName, java.lang.Class
fieldClass, boolean isKey, boolean isComputedField, int insertValueSource,
java.lang.String insertFormula, int onEmptyValuePolicy, java.lang.String
emptyFormula)
There is also a SQL Template generated for select statements:
static final String SELECT_SQL_TEMPLATE="SELECT ALL ndnwOrders.OrderID,
ndnwOrders.CustomerID, ndnwOrders.EmployeeID, ndnwOrders.OrderDate,
ndnwOrders.RequiredDate, ndnwOrders.ShippedDate, ndnwOrders.ShipVia,
ndnwOrders.Freight, ndnwOrders.ShipName, ndnwOrders.ShipAddress,
ndnwOrders.ShipCity, ndnwOrders.ShipRegion, ndnwOrders.ShipPostalCode,
ndnwOrders.ShipCountry FROM ndnwOrders __WHERE__ ";
public
So for computed columns you need to do two things:
1. You need to adjust the SELECT_SQL_TEMPLATE to reflect your computed
column instead of the "simplistic" column name that appears there by
default.
2. You have to "alias" that column and provide the value of the alias in the
columnName position of the QueryFieldDescriptor. This is needed so that the
model will be able to dereference the computed column in the result set.
----- Original Message -----
From: "SNR R" <snr@s...>
Sent: Thursday, July 12, 2001 8:30 AM
Subject: [iPlanet-JATO] Data model(Dataobject in Nd5)
Hi
We are migrating ND5 application into iplanet.When we are excuting
data model it is giving invalid column name error but when we check
data
model sql statement which is working fine at sqlplus but this data model
has got computed column.
could you please tell me how to resolve this problem.
Thanks
Sn
----- Original Message -----
From: "Todd Fast" <toddwork@c...>
Date: Monday, July 9, 2001 10:42 pm
Subject: Re: [iPlanet-JATO] COULD YOU PLS HELP ME TO FIX REPEATED OBJECT
ISSUE.
This code should generally be in the TiledView (it may appear in
both the
ViewBean and the TiledView after migration).
CSpRepeated repeated =(CSpRepeated) event.getSource();// Assuming the code is in the TiledView
TiledView repeated=this;
CSpStaticText stFieldName =(CSpStaticText)
repeated.getDisplayField("stFieldName");StaticTextField stFieldName=
(StaticTextField)getDisplayField("stFieldName");
- or -
StaticTextField stFieldName=getStFieldName();
int index = event.getRowIndex();In what event do you want to obtain the index? For the most part,
you can
just call TiledView.getTileIndex(). If this is a request event
handlingmethod, the row index is part of the event signature.
IMPORTANT: If the original code cached references to display
fields as page
instance variables for use in the class's events, you should NOT
do the same
in JATO. This was an ND pattern that is unnecessary and
inefficient in
JATO. Instead, you should just use the generated accessors or the
getDisplayField()/getChild() methods to obtain a reference to a
displayfield as needed. Mike Frisino has elaborated this point in
the past; please
refer to his emails.
Todd
[email protected]
[email protected]

Sn,
Computed columns need special attention.
The migration tool creates a QueryFieldSchema for each Model (DataObject).
The schema is populated with entries for each of the "data fields" needed by
that query. For example:
FIELD_SCHEMA.addFieldDescriptor(
new QueryFieldDescriptor(
FIELD_NDNWORDERS_ORDERID,
COLUMN_NDNWORDERS_ORDERID,
QUALIFIED_COLUMN_NDNWORDERS_ORDERID,
Integer.class,
false,
false,
QueryFieldDescriptor.APPLICATION_INSERT_VALUE_SOURCE,
QueryFieldDescriptor.ON_EMPTY_VALUE_EXCLUDE,
The query field descriptor describes the "metadata" for a given field:
QueryFieldDescriptor(java.lang.String logicalName, java.lang.String
columnName, java.lang.String qualifiedColumnName, java.lang.Class
fieldClass, boolean isKey, boolean isComputedField, int insertValueSource,
java.lang.String insertFormula, int onEmptyValuePolicy, java.lang.String
emptyFormula)
There is also a SQL Template generated for select statements:
static final String SELECT_SQL_TEMPLATE="SELECT ALL ndnwOrders.OrderID,
ndnwOrders.CustomerID, ndnwOrders.EmployeeID, ndnwOrders.OrderDate,
ndnwOrders.RequiredDate, ndnwOrders.ShippedDate, ndnwOrders.ShipVia,
ndnwOrders.Freight, ndnwOrders.ShipName, ndnwOrders.ShipAddress,
ndnwOrders.ShipCity, ndnwOrders.ShipRegion, ndnwOrders.ShipPostalCode,
ndnwOrders.ShipCountry FROM ndnwOrders __WHERE__ ";
public
So for computed columns you need to do two things:
1. You need to adjust the SELECT_SQL_TEMPLATE to reflect your computed
column instead of the "simplistic" column name that appears there by
default.
2. You have to "alias" that column and provide the value of the alias in the
columnName position of the QueryFieldDescriptor. This is needed so that the
model will be able to dereference the computed column in the result set.
----- Original Message -----
From: "SNR R" <snr@s...>
Sent: Thursday, July 12, 2001 8:30 AM
Subject: [iPlanet-JATO] Data model(Dataobject in Nd5)
Hi
We are migrating ND5 application into iplanet.When we are excuting
data model it is giving invalid column name error but when we check
data
model sql statement which is working fine at sqlplus but this data model
has got computed column.
could you please tell me how to resolve this problem.
Thanks
Sn
----- Original Message -----
From: "Todd Fast" <toddwork@c...>
Date: Monday, July 9, 2001 10:42 pm
Subject: Re: [iPlanet-JATO] COULD YOU PLS HELP ME TO FIX REPEATED OBJECT
ISSUE.
This code should generally be in the TiledView (it may appear in
both the
ViewBean and the TiledView after migration).
CSpRepeated repeated =(CSpRepeated) event.getSource();// Assuming the code is in the TiledView
TiledView repeated=this;
CSpStaticText stFieldName =(CSpStaticText)
repeated.getDisplayField("stFieldName");StaticTextField stFieldName=
(StaticTextField)getDisplayField("stFieldName");
- or -
StaticTextField stFieldName=getStFieldName();
int index = event.getRowIndex();In what event do you want to obtain the index? For the most part,
you can
just call TiledView.getTileIndex(). If this is a request event
handlingmethod, the row index is part of the event signature.
IMPORTANT: If the original code cached references to display
fields as page
instance variables for use in the class's events, you should NOT
do the same
in JATO. This was an ND pattern that is unnecessary and
inefficient in
JATO. Instead, you should just use the generated accessors or the
getDisplayField()/getChild() methods to obtain a reference to a
displayfield as needed. Mike Frisino has elaborated this point in
the past; please
refer to his emails.
Todd
[email protected]
[email protected]

Error : com.iplanet.jato.model.ModelControlException: Location is beyond th

Hi..All,
I have a Page displayed with few values & one of them is of HREF type.The Model gets populated & I am able to view the data. When I click on the HREF value, I get an error :com.iplanet.jato.model.ModelControlException: Location is beyond the end of the current bean array (0 > -1)I tried setting the Bean Scope to "Any", "Request" , but it still gives me this error. The sys out in the constructor shows 0 for the size when the request comes in for the second time.
Here is the JSP :
package accruals.main;
import java.io.*;
import java.util.*;
import javax.servlet.*;
import javax.servlet.http.*;
import com.iplanet.jato.*;
import com.iplanet.jato.command.*;
import com.iplanet.jato.model.*;
import com.iplanet.jato.view.*;
import com.iplanet.jato.view.event.*;
import javax.naming.*;
import javax.rmi.PortableRemoteObject;
import AccrualsEJB.*;
public class TaxPackUserAccessView extends BasicTiledView {
* Default constructor
public TaxPackUserAccessView(View parent, String name) {
super(parent,name);
// setMaxDisplayTiles(5);
System.out.println("The Model Name in the init before is : " +getPrimaryModel().getName());
try {
System.out.println("The model size in the init is : " + getPrimaryModel().getSize());
} catch (Exception e) {System.out.println("Error in init " + e);}
// Non-visual component initialization
private com.iplanet.jato.model.SimpleModelReference taxPackUserAccess;
* Creates the non-visual components
* <p><em>WARNING:</em> This code was automatically generated, do not edit!
private void initComponents(){
taxPackUserAccess = new com.iplanet.jato.model.SimpleModelReference();
{ // begin local variable scope
taxPackUserAccess.setModelClassName("accruals.main.TaxPackUserAccess");
} // end local variable scope
// Instance initializer - non-visual components
initComponents();
// Instance initializer - set properties
this.setPrimaryModelReference(taxPackUserAccess);
com.iplanet.jato.model.ModelReference[] autoRetrievingModelsVar =
new com.iplanet.jato.model.ModelReference[0];
this.setAutoRetrievingModels(autoRetrievingModelsVar);
this.setMaxDisplayTiles(100);
* Registers each child in this container.
* <p><em>WARNING:</em> This code was automatically generated, do not edit!
private void registerChildren() {
registerChild(CHILD_EMP_NO, com.iplanet.jato.view.BasicDisplayField.class);
registerChild(CHILD_NAME, com.iplanet.jato.view.BasicDisplayField.class);
registerChild(CHILD_ADMIN, com.iplanet.jato.view.BasicDisplayField.class);
registerChild(CHILD_SUPER_USER, com.iplanet.jato.view.BasicDisplayField.class);
registerChild(CHILD_EMP_NO_SUMMARY, com.iplanet.jato.view.BasicCommandField.class);
// Instance initializer - register children
registerChildren();
* Creates the named child.
* <p><em>WARNING:</em> This code was automatically generated, do not edit!
protected View createChildReserved(String name) {
if (name.equals(CHILD_EMP_NO)) {
com.iplanet.jato.view.BasicDisplayField child =
new com.iplanet.jato.view.BasicDisplayField(this, CHILD_EMP_NO);
child.setModelReference(taxPackUserAccess);
com.iplanet.jato.model.ModelFieldBinding modelFieldBindingVar =
new com.iplanet.jato.model.ModelFieldBinding();
{ // begin local variable scope
modelFieldBindingVar.setReadFieldName("empNo");
modelFieldBindingVar.setWriteFieldName("empNo");
} // end local variable scope
child.setModelFieldBinding(modelFieldBindingVar);
child.setValue( "");
return child;
else if (name.equals(CHILD_NAME)) {
com.iplanet.jato.view.BasicDisplayField child =
new com.iplanet.jato.view.BasicDisplayField(this, CHILD_NAME);
child.setModelReference(taxPackUserAccess);
com.iplanet.jato.model.ModelFieldBinding modelFieldBindingVar =
new com.iplanet.jato.model.ModelFieldBinding();
{ // begin local variable scope
modelFieldBindingVar.setReadFieldName("name");
modelFieldBindingVar.setWriteFieldName("name");
} // end local variable scope
child.setModelFieldBinding(modelFieldBindingVar);
child.setValue( "");
return child;
else if (name.equals(CHILD_ADMIN)) {
com.iplanet.jato.view.BasicDisplayField child =
new com.iplanet.jato.view.BasicDisplayField(this, CHILD_ADMIN);
child.setModelReference(taxPackUserAccess);
com.iplanet.jato.model.ModelFieldBinding modelFieldBindingVar =
new com.iplanet.jato.model.ModelFieldBinding();
{ // begin local variable scope
modelFieldBindingVar.setReadFieldName("admin");
modelFieldBindingVar.setWriteFieldName("admin");
} // end local variable scope
child.setModelFieldBinding(modelFieldBindingVar);
child.setValue( "1");
return child;
else if (name.equals(CHILD_SUPER_USER)) {
com.iplanet.jato.view.BasicDisplayField child =
new com.iplanet.jato.view.BasicDisplayField(this, CHILD_SUPER_USER);
child.setModelReference(taxPackUserAccess);
com.iplanet.jato.model.ModelFieldBinding modelFieldBindingVar =
new com.iplanet.jato.model.ModelFieldBinding();
{ // begin local variable scope
modelFieldBindingVar.setReadFieldName("superUser");
modelFieldBindingVar.setWriteFieldName("superUser");
} // end local variable scope
child.setModelFieldBinding(modelFieldBindingVar);
child.setValue( "1");
return child;
else if (name.equals(CHILD_EMP_NO_SUMMARY)) {
com.iplanet.jato.view.BasicCommandField child =
new com.iplanet.jato.view.BasicCommandField(this, CHILD_EMP_NO_SUMMARY);
child.setModelReference(taxPackUserAccess);
com.iplanet.jato.model.ModelFieldBinding modelFieldBindingVar =
new com.iplanet.jato.model.ModelFieldBinding();
{ // begin local variable scope
modelFieldBindingVar.setReadFieldName("empNo");
modelFieldBindingVar.setWriteFieldName("empNo");
} // end local variable scope
child.setModelFieldBinding(modelFieldBindingVar);
return child;
return super.createChildReserved(name);
/** Returns the <code>empNo</code> child View component */
public com.iplanet.jato.view.BasicDisplayField getEmpNoChild() {
return (com.iplanet.jato.view.BasicDisplayField)getChild(CHILD_EMP_NO);
/** Returns the <code>name</code> child View component */
public com.iplanet.jato.view.BasicDisplayField getNameChild() {
return (com.iplanet.jato.view.BasicDisplayField)getChild(CHILD_NAME);
/** Returns the <code>admin</code> child View component */
public com.iplanet.jato.view.BasicDisplayField getAdminChild() {
return (com.iplanet.jato.view.BasicDisplayField)getChild(CHILD_ADMIN);
/** Returns the <code>superUser</code> child View component */
public com.iplanet.jato.view.BasicDisplayField getSuperUserChild() {
return (com.iplanet.jato.view.BasicDisplayField)getChild(CHILD_SUPER_USER);
/** Returns the <code>empNoSummary</code> child View component */
public com.iplanet.jato.view.BasicCommandField getEmpNoSummaryChild() {
return (com.iplanet.jato.view.BasicCommandField)getChild(CHILD_EMP_NO_SUMMARY);
public static final String CHILD_EMP_NO = "empNo";
public static final String CHILD_NAME = "name";
public static final String CHILD_ADMIN = "admin";
public static final String CHILD_SUPER_USER = "superUser";
public static final String CHILD_EMP_NO_SUMMARY = "empNoSummary";
public void handleEmpNoSummaryRequest(RequestInvocationEvent event) throws Exception {
System.out.println("The Model Name is : " +getPrimaryModel().getName());
setPrimaryModel((DatasetModel)getDefaultModel());
System.out.println("In Because of the link :" +((TiledViewRequestInvocationEvent)event).getTileNumber());
System.out.println("The Model Name is : + " +getPrimaryModel().getName());
System.out.println("The model size is from the request : " + getPrimaryModel().getSize());
getPrimaryModel().setLocation(((TiledViewRequestInvocationEvent)event).getTileNumber());
System.out.println("the value of the clicked field was :" + getDisplayFieldStringValue(CHILD_EMP_NO));
System.out.println("From the value:"+ getEmpNoChild().getValue());
getParentViewBean().forwardTo(getRequestContext());
public void beginComponentDisplay(DisplayEvent event) throws ModelControlException {
TaxPackUserDATA tpackDATA =null;
AccrualsSessionHome myAccrualsSessionHome;
String userID;
Object result;
try {
System.out.println("Before the create");
Context c = new InitialContext();
System.out.println("after the intial context");
result = c.lookup("ejb/AccrualsSession");
System.out.println("The class name :" +result.getClass().getName());
System.out.println("after the lookup");
myAccrualsSessionHome = (AccrualsSessionHome)PortableRemoteObject.narrow(result,AccrualsSessionHome.class);
System.out.println("after narrow down");
AccrualsSession asb = myAccrualsSessionHome.create();
System.out.println("after the create");
tpackDATA = asb.validateUser("111351");
System.out.println("The user is " + tpackDATA.getEmpNo());
System.out.println("The Name id is " + tpackDATA.getName());
System.out.println("The admin is " + tpackDATA.getAdmin());
System.out.println("The superUser is " + tpackDATA.getSuperUser());
} catch (Exception e) {
System.out.println("Error during Validate User Login in AccrualsLoginServlet" + e);
System.out.println("Inside AccrualsLoginViewBean beginComponentDisplay");
BeanAdapterModel model = (TaxPackUserAccess) getRequestContext().getModelManager().getModel(TaxPackUserAccess.class);
System.out.println("After creating the model" + getPrimaryModel().getName());
getRequestContext().getRequest().setAttribute(model.getBeanScopeAttributeName(), tpackDATA);
System.out.println("Leaving AccrualsLoginViewBean beginComponentDisplay");
System.out.println("The model size is : " + model.getSize());
// getPrimaryModel().setSize(1);
// resetTileIndex();
// super.beginComponentDisplay(event);
}

You are using BeanAdapterModel. Unless you've elected to place your BeanAdapterModel instance in the session, it is request-scoped like all JATO objects. This means that on the second request, a new model is created, and unless you set the list of beans on the model, it has no beans on which to set the incoming data.
An easy place to set the list of beans is in the constructor of the model. If, however, the beans are in one of the J2EE scopes (either already, or because you elected to put them there sometime earlier in your request handling), then you can use the model's ability to look up the beans in that scope by adjusting the Bean Scope and Bean Scope Attribute properties.

Re: [iPlanet-JATO] Re: Retrieving all Values from a Tiled View

Todd,
Let me try to explain you this time. I have a text field in a TiledViewBean.
When I display the page, the text field
html tag is created with the name="PageDetail.rDetail[0].tbFieldName" say
five times/rows with same name.
The html tags look like this.
<input type=text name="PageDetail.rDetail[0].tbFieldName" value=""
maxlength=9 size=13>
<input type=text name="PageDetail.rDetail[0].tbFieldName" value=""
maxlength=9 size=13>
<input type=text name="PageDetail.rDetail[0].tbFieldName" value=""
maxlength=9 size=13>
When the form is submitted, I want to get the text field values using the
method getTbFieldName().getValues() which
returns an array object[]. This is in case where my TiledViewBean is not
bound and it is working fine.
Now in case when my TiledView is bound to a model, it creates the html tags
as follows.
<input type=text name="PageDetail.rDetail[0].tbFieldName" value=""
maxlength=9 size=13>
<input type=text name="PageDetail.rDetail[1].tbFieldName" value=""
maxlength=9 size=13>
<input type=text name="PageDetail.rDetail[2].tbFieldName" value=""
maxlength=9 size=13>
Now when I say getTbFieldName().getValues() it returns only the first
element values in the object[] and the rest of the
values are null.
May be we need to create a utility method do get these values from
requestContext.
raju.
----- Original Message -----
From: Todd Fast <toddwork@c...>
Sent: Saturday, July 07, 2001 3:52 AM
Subject: Re: [iPlanet-JATO] Re: Retrieving all Values from a Tiled View
Raju.--
I wanted to know how the getValues() method works the reason being,
when the tiled view is NOT bound to a model, it populates all the
fields with the same name as some thing likeI'm afraid I don't understand your point--can you please clarify? Do you
mean "value" instead of "name"?
What are you trying to do? What behavior are you expecting but notseeing?
>
Without further clarification, I can say that the setValues() methodsNEVER
populates data on multiple rows of a (dataset) model, nor does it affect
multiple fields on the same row. Perhaps what you are seeing is theeffect
of default values. Model that derive from DefaulModel have the ability to
carry forward the values set on the first row to other rows in lieu ofdata
in those other rows. This behavior is for pure convenience and can be
turned off, and it is turned off for the SQL-based models.
Todd
[email protected]

Hi,
I wanted to know how the getValues() method works the reason being,
when the tiled view is NOT bound to a model, it populates all the
fields with the same name as some thing like
PageDetail.rDetail[0].tbFieldValue
PageDetail.rDetail[0].tbFieldValue
in which case, the getValues() method works fine.
But in case where the tiled view is bound to a model, it populates
with different field names such as,
PageDetail.rDetail[0].tbFieldValue
PageDetail.rDetail[1].tbFieldValue
in this case, the getValues() doesn't work. Any soultion to this?
We are using Moko 1.1.1.
thanks in advance,
raju.
--- In iPlanet-JATO@y..., "Todd Fast" <toddwork@c...> wrote:
Does anyone know of is there a single method to get all values of a
display
field in a tiled view without having to iterate through all the
values ie
resetTileIndex() / nextTile() approach.
ie Something that returns an Object[] or Vector just like ND returned a
CspVector. I tried using the getValues() methods but that allways returns
a
single element array containing the first element.
(I think now, that method is used for multi selecteable ListBoxes)Actually, no. We can add this in the next patch, but for now, I'd recommend
creating a simple utility method to do the iteration on an arbitrary model
and build the list for you.
Todd

Re: [iPlanet-JATO] Retrieving all Values from a Tiled View

Does anyone know of is there a single method to get all values of adisplay
field in a tiled view without having to iterate through all the values ie
resetTileIndex() / nextTile() approach.
ie Something that returns an Object[] or Vector just like ND returned a
CspVector. I tried using the getValues() methods but that allways returnsa
single element array containing the first element.
(I think now, that method is used for multi selecteable ListBoxes)Actually, no. We can add this in the next patch, but for now, I'd recommend
creating a simple utility method to do the iteration on an arbitrary model
and build the list for you.
Todd

Hi,
I wanted to know how the getValues() method works the reason being,
when the tiled view is NOT bound to a model, it populates all the
fields with the same name as some thing like
PageDetail.rDetail[0].tbFieldValue
PageDetail.rDetail[0].tbFieldValue
in which case, the getValues() method works fine.
But in case where the tiled view is bound to a model, it populates
with different field names such as,
PageDetail.rDetail[0].tbFieldValue
PageDetail.rDetail[1].tbFieldValue
in this case, the getValues() doesn't work. Any soultion to this?
We are using Moko 1.1.1.
thanks in advance,
raju.
--- In iPlanet-JATO@y..., "Todd Fast" <toddwork@c...> wrote:
Does anyone know of is there a single method to get all values of a
display
field in a tiled view without having to iterate through all the
values ie
resetTileIndex() / nextTile() approach.
ie Something that returns an Object[] or Vector just like ND returned a
CspVector. I tried using the getValues() methods but that allways returns
a
single element array containing the first element.
(I think now, that method is used for multi selecteable ListBoxes)Actually, no. We can add this in the next patch, but for now, I'd recommend
creating a simple utility method to do the iteration on an arbitrary model
and build the list for you.
Todd

Re: [iPlanet-JATO] Sorting a resultset

Steve,
Todd will probably address this more, but to set the stage for the discussion,
I will chime in. As per your scenario "say a user wants to resort the results
by some other column" , I think there needs to be some clarification on the
life cycle of the model. You scenario implies that the user sees the data and
then submits a request to sort the data. This implies that the access to the
same data is spread across two HTTP requests.
Unless explicitly or implicitly stored in session, the Model is a per request
object. Therefore, under ordinary circumstances a new instance of Model is
constructed per request and populated as needed. This is done for scalability
reasons. Most applications would not scale properly if all model instances were
kept around in session per user. There is also the issue of data integrity, a
model stored in session may not reflect the current state of the RDBMS from
which the data was previously retrieved, perhaps minutes before. So, the
default action is to instantiate a new model and repopulate that model The
normal solution would be to apply the sort criteria to the data retrieval at
that point.
What I described above is the norm and the default.
If you have compelling reasons to prefer a single retrieval style, you have to
be prepared to store the Model data in session. There are several methods
within the ModelManager class which assist in this regard. You can see them
described in the java doc.
Also bear in mind that the SQLModelBase typically copies the data from the JDBC
result set into JATO specific local storage. This is done because the JDBC
result set is not as flexible as developer needs and requires the JDBC
connection to remain open while it is used.
I suspect that Todd will describe how you can manipulate the underlying JATO
specific local storage to change the order. I just wanted to make sure you
understood the life cycle issues involved and had justification for deviating
from the default.
Also, I'm still waiting for followup on the defaultCommandChild issue - we'd
like to fix it for JATO 1.2.1 if it is a problem and so far your case is the
only one we have heard of.
----- Original Message -----
From: stephen_winer
Sent: Wednesday, December 12, 2001 9:42 AM
Subject: [iPlanet-JATO] Sorting a resultset
If I want to sort a result set (Model) after the search has taken
place (say a user wants to resort the results by some other column),
can this be done without issuing another query? The reason I ask is
that the next() method in the ResultSetModelBase calls synchronizeRow
(), which resets the row, which sounds like a sort done outside of
the SQL would be reverted.
Steve
For more information about JATO, please visit:
http://developer.iplanet.com/tech/appserver/framework/index.jsp
[Non-text portions of this message have been removed]

The hidden field was present in the page, but it looked like this:
<input type="hidden" name="jato.defaultCommand" value=""../search"">
Seems like there is a small bug in the code generating this tag.
FYI - I am using JATO1.2
What file displays this text? Maybe I can go in and fix it and rejar
it.
Steve
--- Mike Frisino wrote:
Steve,
Can you check the HTML source that shows up in the browser? Do you see an entry that looks like this at the bottom of the form in
question?
>
<input type="hidden" name="jato.defaultCommand" value="/search">
To answer your question - it should work as you described. Some of the JatoSample make use of the defaultCommandChild. Can you try
running the sample BasicSample->Field Types and let us know what you
see.
>
Failing this you can send me your jsp file , maybe there is some subtle issue there. michael.frisino@s...
>
>
----- Original Message -----
From: stephen_winer
Sent: Friday, December 07, 2001 8:05 AM
Subject: [iPlanet-JATO] Using the defaultCommandChild in a form
I am trying to set the defaultCommandChild in my jato:form tag to be
the searcg button. The search button definition is:
<jato:button name="search"/>.
The form tag definition is:
<jato:form name="PendingIA" defaultCommandChild="/search">
Clicking on the search button works fine, but hitting return in one
of the textFields (which submits the form) passes a value of "" to
the createChild method in my viewBean, which throws an error. Why
does this not just work as normal and trigger the handleSearchRequest
() method?
Steve
For more information about JATO, please visit:
http://developer.iplanet.com/tech/appserver/framework/index.jsp
Service.
>
>
>
[Non-text portions of this message have been removed]

Re: [iPlanet-JATO] onBeforeRequest(); Finding requested view from requestContext

The problem is that you don't know what the target view is until it has
been forwarded to.
Think about it... the request handling view bean (or command object) has
the request handler that has the code that will ultimately forward to
another view bean. This is code that you have written. So, until that
forwardTo() is invoked, there is no notion of a "target page".
What you do know is which "page" (view bean) the request is coming from
(the handling view bean or command class). You can get this from the
HttpServletRequest. The attribute name is "viewBean".
So you can get the view bean name by doing the following in onBeforeRequest:
<HttpServletRequest>.getAttribute("viewBean");
But I suspect this is not going to solve your current issue.
You could add the target page name to the page session. If there is more
than one possible target page, it might get a little more involved.
Let me know if the use of page session needs further explanation.
c
nickmalthus wrote:
I am implementing a custom security model since the standard J2EE
security model does not allow me access to the users password, which I
need to log into a third party application. I have overriden the
onBeforeRequest() method to check to see if the user is logged in, and
if not, forward to the Login ViewBean. However, I need to determine
what page/viewbean the request is attempting to access so I can let it
pass through if it is accessing the Login viewbean and to forward to
the requested view once the user is logged in. What is the best way to
do this? I see no obvious uitility in the javadocs
TIA
For more information about JATO, including download information, please visit:
http://developer.iplanet.com/tech/appserver/framework/index.jsp

I guess what I am thinking about doing is capturing the requested URL,
i.e. /appname/modulename/RequestName. In the onBeforeRequest(). I
would then check to see if the user is logged in, and if not, set the
URL in the session(or page session of the Login bean) and forward to
the Login viewbean using the viewbean manager. Inside the login view
in the handleSubmit() method I would authenticate the user and then
get the URL out of the session (or pagesession). I would then
magically get the ViewBean/Command object for the URL or otherwise
"forward the request" as if the user had typed in
/appname/modulename/RequestName, which is the behavior I am trying to
acheive.
It turns out I cannot forward in the onBeforeRequest() as it will
output the viewbean and then continue to process the request which in
turn trys to do a RequestDispatcher().forward after data has been
written to the stream which does not bode well with the servlet
container. Thus, it appears I have no control of the request in the
onBeforeRequest() method. Is this correct?
In light of this new observation I am now going to create a base view
class that all views will extend from and override the
onSecurityCheck() method to forward to my login bean. If I can't find
any other way, I will get the URL from the page session and do a
response.sendRedirect() to the URL.
Thanks for the help!
--- In iPlanet-JATO@y..., "Craig V. Conover" <craig.conover@s...> wrote:
The problem is that you don't know what the target view is until it has
been forwarded to.
Think about it... the request handling view bean (or command object)has
the request handler that has the code that will ultimately forward to
another view bean. This is code that you have written. So, until that
forwardTo() is invoked, there is no notion of a "target page".
What you do know is which "page" (view bean) the request is coming from
(the handling view bean or command class). You can get this from the
HttpServletRequest. The attribute name is "viewBean".
So you can get the view bean name by doing the following inonBeforeRequest:
>
<HttpServletRequest>.getAttribute("viewBean");
But I suspect this is not going to solve your current issue.
You could add the target page name to the page session. If there ismore
than one possible target page, it might get a little more involved.
Let me know if the use of page session needs further explanation.
c

RE: [iPlanet-JATO] Href click & tiled view display

Srinivas,
I hope that I am not oversimplifying your first question; repost if I do not
answer your question. Independent of JATO, HTML Form button sumbits will
include the scraping of data off the form input fields; the data will passed
as part of the body of the HTTP request. Therefore, you would expect to
receive all your inputs during the Button submit. In the case of a button,
a HTTP POST request is invoked. Href clicks, only submit the NVPs which are
encoded on the HREF URL. Therefore, it is impossible (under normal
circumstances) to retrieve the inputs from the FORM during the Href click.
In the case of a Href, a HTTP GET request is invoked. Some customers have
used a pattern in which Javascript is used to capture the Href onClick()
event to perform some runtime modifications to the HREF URL before the HTTP
GET request is submitted. I recommend to always have the LogProxy2 utility
running during development so that the HTTP requests and repsonses can be
debugged. If you setup the LogProxy2 (downloadable from this Group's Files
repository) then you would see the HTTP requests in the LogProxy2's console
window.
TiledView question: Remember, each TiledView requires a "primary
DatasetModel" which it uses for iteration of the tiles. It can be
confusing, but the API call of
<ContainerView>.getDefaultModel()
has no relation to the implementation class called DefaultModel. See the
Javadoc (excerp below)
/migtoolbox-1.1.1/doc/jato/api/com/iplanet/jato/view/ContainerView.html#getD
efaultModel()
"Returns this view's default model. The default model is typically used by
DisplayField children for default value storage (if they are not bound to
any other model). This method should always return a valid model instance.
Note that the default model need not be an actual instance of DefaultModel,
although this is usually the case."
Both of your TiledView's (inner and outer) are ContainerViews, each having
their own property for [get/set]DefaultModel(). Likewise, the ViewBean
parent of the outer TiledView is a ContainerView as well. With these facts
in mind, consider the behavior of the ModelManager. The ModelManager will
ensure that only once instance of specifically named model will be provided
during a request scope. Therefore, everytime that you make a call to
<ModelManager>.getModel(SomeModel.class)
no matter how many times you make this call during a request, the
ModelManager will ensure that you get the same object reference back.
Implicitly, you are asking for a Model with the exclusive name of
<ModelManager>.getDefaultModelInstanceName(SomeModel.class)
I believe that your problem is that you have the Primary Model of both the
inner and outer TiledView's set to the same instance of the DefaultModel
class. Therefore, the TiledViews are tripping over each other because they
are using the same Primary model. What I would do is change the constructor
of each TiledView to set an exclusive Primary model
// add to constructor of outer TileView
setPrimaryModel(getModelI(DefaultModel.class,"outer")
// add to constructor of inner TileView
setPrimaryModel(getModelI(DefaultModel.class,"inner")
remember to set the "size" of the Primary Model appropriately in the
beginDisplay() event of each TiledView before calling super.beginDisplay()
matt
-----Original Message-----
From: Srinivas Chikkam [mailto:<a href="/group/SunONE-JATO/post?protectID=061212020185082096169232190043244089032032196034013195172049230091142254099102">srinivas.chikkam@w...</a>]
Sent: Tuesday, July 17, 2001 7:36 AM
Subject: [iPlanet-JATO] Href click & tiled view display
Hi,
I'm facing the following two problems in JATO. Your help will be
appreciated.
1) Clicking a HREF.
I have a button and a href in a page. When I submit the page by
clicking the button, I'm able to
get all the user entered data (form elements) in handler method.
However, when I click
the href and I try to retrieve the data entered by the user in my
corresponding handler method, I'm
getting blank values.
How would I be able to get the user entered data upon clicking of a href
? I'm copying the sample
code for your reference.
// This returns me 5 values entered in the 5 tiles by the user.
public void handleBButtonRequest(RequestContext req)
throws ServletException, IOException
try
System.out.println("button clicked..");
pgSampleTiledView tiledView = getSampleTile();
System.out.println("\n\n\n\n@@@@@@@@@@@ No of tiles >>>
"+tiledView.getNumTiles());
int n = tiledView.getNumTiles();
for (int i=0; i<n; i++)
tiledView.setTileIndex(i);
System.out.println(i+".
"+tiledView.getTbValue().getValue().toString());
this.forwardTo(req);
catch (Exception ex)
ex.printStackTrace();
// This returns me 0 tiles and doesn't get into for loop
public void handleLinkModifyDistributionRequest(RequestContext req )
throws ServletException, IOException
try
System.out.println("href clicked..");
pgSampleTiledView tiledView = getSampleTile();
System.out.println("\n\n\n\n@@@@@@@@@@@ No of tiles >>>
"+tiledView.getNumTiles());
int n = tiledView.getNumTiles();
for (int i=0; i<n; i++)
tiledView.setTileIndex(i);
System.out.println(i+".
"+tiledView.getTbValue().getValue().toString());
this.forwardTo(req);
catch (Exception ex)
ex.printStackTrace();
2) Tiled view display
I have tiled view inside another tiled view. Based upon the data
retrieved from the database, lets say, the outer tile needs to be
displayed twice and the inner tile 3 times and 1 time.
For Ex: Lets say, the desired output from these tiled views is as
follows
STOCK INVESTMENT
stock name1
stock name2
stock name3
OTHER INVESTMENT
other investment1
The outer tiled view displays the investment type headings (STOCK
INVESTMENT or OTHER INVESTMENT) and inner tile
displays the actual stock names or the other investment names. Both
the tile views are bound to a default model. In the begin display
of these tiled view I'm setting the size of the model as
getPrimaryModel.setSize(requiredsize).
If i display 3 records in the inner tiled view in the first iteration
and i try to display 1 record in the second iteration, it displays 3
records
properly the first time but it doesn't display any records second
time. super.nextTile() returns false right away second time.
But If I try to display 1 record in the first iteration and 3 records in
the second iteration as below, it works fine.
STOCK INVESTMENT
stock name1
OTHER INVESTMENT
other investment1
other investment2
other investment3
Please let me know what could be the problem.
Thanks
~ Srinivas
The Information contained and transmitted by this E-MAIL is
proprietary to
Wipro Limited and is intended for use only by the individual or
entity to which
it is addressed, and may contain information that is privileged,
confidential or
exempt from disclosure under applicable law. If this is a
forwarded message,
the content of this E-MAIL may not have been sent with the
authority of the
Company. If you are not the intended recipient, an agent of the intended
recipient or a person responsible for delivering the information
to the named
recipient, you are notified that any use, distribution,
transmission, printing,
copying or dissemination of this information in any way or in any
manner is
strictly prohibited. If you have received this communication in
error, please
delete this mail & notify us immediately at mailadmin@w...
[Non-text portions of this message have been removed]
[email protected]

should read
// add to constructor of outer TileView
setPrimaryModel(getModel(DefaultModel.class,"outer");
// add to constructor of inner TileView
setPrimaryModel(getModel(DefaultModel.class,"inner");
matt
-----Original Message-----
From: Matthew Stevens [mailto:<a href="/group/SunONE-JATO/post?protectID=029166114165042198028082000056130080177026031196061123241150194211220076086020224">matthew.stevens@e...</a>]
Sent: Tuesday, July 17, 2001 9:25 AM
Subject: RE: [iPlanet-JATO] Href click & tiled view display
Srinivas,
I hope that I am not oversimplifying your first question; repost
if I do not
answer your question. Independent of JATO, HTML Form button sumbits will
include the scraping of data off the form input fields; the data
will passed
as part of the body of the HTTP request. Therefore, you would expect to
receive all your inputs during the Button submit. In the case of
a button,
a HTTP POST request is invoked. Href clicks, only submit the
NVPs which are
encoded on the HREF URL. Therefore, it is impossible (under normal
circumstances) to retrieve the inputs from the FORM during the Href click.
In the case of a Href, a HTTP GET request is invoked. Some customers have
used a pattern in which Javascript is used to capture the Href onClick()
event to perform some runtime modifications to the HREF URL
before the HTTP
GET request is submitted. I recommend to always have the
LogProxy2 utility
running during development so that the HTTP requests and repsonses can be
debugged. If you setup the LogProxy2 (downloadable from this
Group's Files
repository) then you would see the HTTP requests in the
LogProxy2's console
window.
TiledView question: Remember, each TiledView requires a "primary
DatasetModel" which it uses for iteration of the tiles. It can be
confusing, but the API call of
<ContainerView>.getDefaultModel()
has no relation to the implementation class called DefaultModel. See the
Javadoc (excerp below)
/migtoolbox-1.1.1/doc/jato/api/com/iplanet/jato/view/ContainerView
.html#getD
efaultModel()
"Returns this view's default model. The default model is typically used by
DisplayField children for default value storage (if they are not bound to
any other model). This method should always return a valid model instance.
Note that the default model need not be an actual instance of
DefaultModel,
although this is usually the case."
Both of your TiledView's (inner and outer) are ContainerViews, each having
their own property for [get/set]DefaultModel(). Likewise, the ViewBean
parent of the outer TiledView is a ContainerView as well. With
these facts
in mind, consider the behavior of the ModelManager. The ModelManager will
ensure that only once instance of specifically named model will
be provided
during a request scope. Therefore, everytime that you make a call to
<ModelManager>.getModel(SomeModel.class)
no matter how many times you make this call during a request, the
ModelManager will ensure that you get the same object reference back.
Implicitly, you are asking for a Model with the exclusive name of
<ModelManager>.getDefaultModelInstanceName(SomeModel.class)
I believe that your problem is that you have the Primary Model of both the
inner and outer TiledView's set to the same instance of the DefaultModel
class. Therefore, the TiledViews are tripping over each other
because they
are using the same Primary model. What I would do is change the
constructor
of each TiledView to set an exclusive Primary model
// add to constructor of outer TileView
setPrimaryModel(getModelI(DefaultModel.class,"outer")
// add to constructor of inner TileView
setPrimaryModel(getModelI(DefaultModel.class,"inner")
remember to set the "size" of the Primary Model appropriately in the
beginDisplay() event of each TiledView before calling super.beginDisplay()
matt
-----Original Message-----
From: Srinivas Chikkam [mailto:<a href="/group/SunONE-JATO/post?protectID=061212020185082096169232190043244089032032196034013195172049230091142254099102">srinivas.chikkam@w...</a>]
Sent: Tuesday, July 17, 2001 7:36 AM
Subject: [iPlanet-JATO] Href click & tiled view display
Hi,
I'm facing the following two problems in JATO. Your help will be
appreciated.
1) Clicking a HREF.
I have a button and a href in a page. When I submit the page by
clicking the button, I'm able to
get all the user entered data (form elements) in handler method.
However, when I click
the href and I try to retrieve the data entered by the user in my
corresponding handler method, I'm
getting blank values.
How would I be able to get the user entered data upon clicking of a href
? I'm copying the sample
code for your reference.
// This returns me 5 values entered in the 5 tiles by the user.
public void handleBButtonRequest(RequestContext req)
throws ServletException, IOException
try
System.out.println("button clicked..");
pgSampleTiledView tiledView = getSampleTile();
System.out.println("\n\n\n\n@@@@@@@@@@@ No of tiles >>>
"+tiledView.getNumTiles());
int n = tiledView.getNumTiles();
for (int i=0; i<n; i++)
tiledView.setTileIndex(i);
System.out.println(i+".
"+tiledView.getTbValue().getValue().toString());
this.forwardTo(req);
catch (Exception ex)
ex.printStackTrace();
// This returns me 0 tiles and doesn't get into for loop
public void handleLinkModifyDistributionRequest(RequestContext req )
throws ServletException, IOException
try
System.out.println("href clicked..");
pgSampleTiledView tiledView = getSampleTile();
System.out.println("\n\n\n\n@@@@@@@@@@@ No of tiles >>>
"+tiledView.getNumTiles());
int n = tiledView.getNumTiles();
for (int i=0; i<n; i++)
tiledView.setTileIndex(i);
System.out.println(i+".
"+tiledView.getTbValue().getValue().toString());
this.forwardTo(req);
catch (Exception ex)
ex.printStackTrace();
2) Tiled view display
I have tiled view inside another tiled view. Based upon the data
retrieved from the database, lets say, the outer tile needs to be
displayed twice and the inner tile 3 times and 1 time.
For Ex: Lets say, the desired output from these tiled views is as
follows
STOCK INVESTMENT
stock name1
stock name2
stock name3
OTHER INVESTMENT
other investment1
The outer tiled view displays the investment type headings (STOCK
INVESTMENT or OTHER INVESTMENT) and inner tile
displays the actual stock names or the other investment names. Both
the tile views are bound to a default model. In the begin display
of these tiled view I'm setting the size of the model as
getPrimaryModel.setSize(requiredsize).
If i display 3 records in the inner tiled view in the first iteration
and i try to display 1 record in the second iteration, it displays 3
records
properly the first time but it doesn't display any records second
time. super.nextTile() returns false right away second time.
But If I try to display 1 record in the first iteration and 3 records in
the second iteration as below, it works fine.
STOCK INVESTMENT
stock name1
OTHER INVESTMENT
other investment1
other investment2
other investment3
Please let me know what could be the problem.
Thanks
~ Srinivas
The Information contained and transmitted by this E-MAIL is
proprietary to
Wipro Limited and is intended for use only by the individual or
entity to which
it is addressed, and may contain information that is privileged,
confidential or
exempt from disclosure under applicable law. If this is a
forwarded message,
the content of this E-MAIL may not have been sent with the
authority of the
Company. If you are not the intended recipient, an agent of the intended
recipient or a person responsible for delivering the information
to the named
recipient, you are notified that any use, distribution,
transmission, printing,
copying or dissemination of this information in any way or in any
manner is
strictly prohibited. If you have received this communication in
error, please
delete this mail & notify us immediately at mailadmin@w...
[Non-text portions of this message have been removed]
[email protected]
[email protected]

RE: [iPlanet-JATO] Re: Use Of models in utility classes

Similar Messages

Maybe you are looking for