Managed Beans vs. POJO Data Control for sharing data

Hi,
I am currently using JAX-WS proxy client and POJO Data Controls to retrieve data from web services. This data needs to be shared across users. Normally I would use application scoped managed beans for this, but since I prefer using data controls and the binding layer, would using static POJO Data Control classes achieve the same thing?

Hi,
Data Controls don't exist across user sessions so in your use case use a managed bean in application scope. If you want to make this available from a Data Control
- create a POJO
- Use EL in the POJO to access the managed bean
- Create a DataControl from the POJO
This way the Data Control exposes the data as an API but itself always reaches out to the managed bean as a data store/cache
Frank

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Hello Forum members,
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http://blogs.oracle.com/shay/2010/05/updateinsert_with_adf_web_serv.html

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Manoj

Hi,
the POJO data control will always give you a benefit and develope productivity, unless what you have to build fits on a single page - in which case you may not mind the burdon of manual UI component binding
Frank

Data-control-scope=shared is not working

Steve Muench said in January 2010 in that post {thread:id=1012099}
"In order to share the connection/transaction when data-control-scope=shared, today as an implementation detail we do AM nesting for you at runtime when using task flow calls”
From that thread I understood that: by setting *"data-control-scope"* to *"shared"* +(this is the default in 11.1.1.3.0)+ in _task flow definition file_ +(in behavior section)+, it should make the task-flow using the same database connection than the _parent’s application module_.
*Is that true?*
If so, it is not working for me.
<li>I’ve created 2 _independents_ ADF Fusion Applications : *MyMainApp* and *MyTFlow* </li>
<li>Each application has a Model and a ViewController projects.</li>
<li>Each application has one ViewObject and one Application Module.</li>
<li>MyMainApp/Model contains MyMainService Application Module & AllEmployeesView ViewObject </li>
<li>MyTFlow/Model contains MyTFlowService Application Module & AllDepartmentView ViewObject</li>
<li>MyMainService and MyTFlowService have the same JDBC Datasource (jdbc/GCCDS).</li>
<li>_In MyTFlow/ViewController project_</li>
<li>I’ve created one page fragment and dragged & dropped AllDepartmentView as an ADF Read-Only Table</li>
<li>I’ve created one Task Flow (allDept-task-flow-definition) and added the pageFragment onto it.</li>
<li>I’ve set the “data-control-scope” to “shared” (it was the default) </li>
<li>I’ve created a new deployment profile (ADF Library Jar) and deployed the jar file </li>
<li>_In MyMainApp/ViewController project_</li>
<li>I’ve created a JSF Page (home.jspx)</li>
<li>I’ve dragged & dropped AllEmployeesView as an ADF Read-Only Form. </li>
<li>I’ve dragged & dropped the “allDept-task-flow-definition” from “Resource Palette” onto the JSF Page. It automatically put it inside an af:region and imports the jar file to the Libraries (ADF Library)</li>
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Nicolas

Hi,
the problem is that the Application Modules are root modules and therefore open a new database connection. Only nested application modules reuse the connection of the parent AM. Andrejus Baranovski did blog about this and came up with the suggestion to build reusable projects such that the model and the view controller parts are deployed separately into ADF Libraries and then combined in a super ADF Librery. This way you can use nested application modules (a single datase connection)
http://andrejusb.blogspot.com/2010/10/how-to-reduce-database-connections-and.html
http://andrejusb.blogspot.com/2010/06/adf-regions-and-nested-application.html
Note that IMO the real power of shared Data Controls comes when you use ADF Regions in an application as a mean of modularization.
Frank

Best practice for sharing data with model window

Hi team,
what would the best practice for sharing data with a modal
window be ? I use a modal window to display record details from a
record list, but i am not quite sure how to access the data from
the components in the main application in the modal window.
Any hints would be welcome
Best
Frank

Pass a reference to the parent into the modal popup. Then you
can reference anything in the parent scope.
I haven't done this i 2.0 yet so I can't give you code. I'll
post if I do.
Oh, also, you can reference the parent using parentDocument.
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I was trying extraction with flat files in SAP BI 7(new to sap bi 7 but very much familiar with BW3.5) but failed in the activity during master data attributes and text upload in infoobject (say IOSP_Mat).
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was busy with some other activities.
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Once again sorry to all of you for my late response
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Sri

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Ravi

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just for information.
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FAILURE INFORMATION
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http://help.sap.com/saphelp_nw70/helpdata/en/0c/b4973c115a6f3ae10000000a114084/frameset.htm
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Managed Beans vs. POJO Data Control for sharing data

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