[jboss-user] [JBoss Seam] - Re: DataModel in two SFSB issues (regression)

[lcoetzee]

Thanks Pete... my Eclipse code completetion,  combined with the default value 
 tripped me up a bit.

Thanks

L

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[jboss-user] [JBoss Seam] - Re: DataModel in two SFSB issues (regression)

[[EMAIL PROTECTED]]

You were using unintentional behaviour in Seam.  I fixed this properly a while 
ago.

What you need to do is inject the values in the second bean:

@Stateful
  | @Name(sectionManagementBean)
  | public class SectionManagementBean implements SectionManagement {
  | @In(#{sections.wrappedData})
  | private ListSection sections;
  | 
  | @In(#{sections.rowData})
  | private int selectedSectionNr;
  | .
  | .
  | }

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[jboss-user] [JBoss Seam] - Re: DataModel in two SFSB issues (regression)

[lcoetzee]

Great stuff. Thanks Pete.


(I will have to update my code in a few places where I have used this behavior, 
but not a big problem)

A quick test showed that it needs to be :


  | @In(#{sections.wrappedData})
  | private ListSection sections;
  | 
  | @In(#{sections.rowData})
  | @Out(required = false, scope = ScopeType.CONVERSATION)
  | private Section section;
  | 

and seems I dont need:
section = sections.get(selectedSectionNr); anymore


Thanks

L

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[jboss-user] [JBoss Seam] - Re: DataModel in two SFSB issues (regression)

[lcoetzee]

One question regarding:

  | @In(#{sections.rowData})
  | @Out(required = false, scope = ScopeType.CONVERSATION)
  | private Section section;
  | 

Is there a way that one can say .. required=false using the above annotation. 
At this point I get an exception when I try to use execute another method in 
the sectionManagementBean (without me actually choosing an element from the 
datamodel).

 
  |  handling uncaught exception
  | javax.servlet.ServletException: #{sectionManagementBean.manageSections}: 
javax.ejb.EJBTransactionRolledbackException: Error reading 'rowData' on type 
org.jboss.seam.jsf.ListDataModel
  | 


Thanks

L


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[jboss-user] [JBoss Seam] - Re: DataModel in two SFSB issues (regression)

[[EMAIL PROTECTED]]

@In(value=..., required=false) - value is the defualt attribute for an 
annotation

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[jboss-user] [JBoss Seam] - Re: DataModel in two SFSB issues

[lcoetzee]

My applications is still running on jboss 4.0.5, which means that I can't test 
the new Seam (as Seam is now dependent on jboss 4.2.0).

I have been trying to port my app to run with the new jboss and seam. 
Unfortunately I am struggling a bit (the move from myfaces to jsf-ri appears to 
be problematic!)

I will test as soon as I can get it to run with the new jb.

L


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[jboss-user] [JBoss Seam] - Re: DataModel in two SFSB issues

[lcoetzee]

I have managed to get the relevant part of my app running under the new 
jb4.2.0. Seems the fix has done the trick !

Great stuff. 

Thanks.

L




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[jboss-user] [JBoss Seam] - Re: DataModel in two SFSB issues

[CptnKirk]

In Bean B try sharing with 

@In @Out DataModel sections;

If you're trying to manipulate the DataModel in B.  Otherwise your 
investigation seems to show that Seam isolates the @DataModel data binding on a 
per bean basis.  Not sure why.  Gavin is around here somewhere, try adding a 
post to the Back... thread.

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[jboss-user] [JBoss Seam] - Re: DataModel in two SFSB issues

[petemuir]

Louis, post your source for Bean A and Bean B.  

@DataModel does a conversion to a DataModel and then outjects the result - it 
doesn't do a subsequent injection. Based on your description above I wouldn't 
expect sections, created in A, to be available in B if annotated with 
@DataModel (you need to use @In).  If you want the underlying list you can use 
@In(#{sections.wrappedData}).

The code you post just deals with outjecting a DataModel from the bean - and as 
you outject a different object it is dirty...

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[jboss-user] [JBoss Seam] - Re: DataModel in two SFSB issues

[CptnKirk]

anonymous wrote : ...it doesn't do a subsequent injection
Really?  Although I only outject in my code, I thought DataBinders performed 
bidirectional binding.  Why else implement a getWrappedData() DataBinder 
method? 

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[jboss-user] [JBoss Seam] - Re: DataModel in two SFSB issues

[petemuir]

Hmm, looks like you are right, but injection will only occur if

null != null

http://fisheye.jboss.com/browse/JBoss/jboss-seam/src/main/org/jboss/seam/Component.java?r1=1.232r2=1.233

I'll fix it :)

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[jboss-user] [JBoss Seam] - Re: DataModel in two SFSB issues

[petemuir]

Ok, there is a fix in CVS for this.

Could you test it? Thanks

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