[jbossseam-issues] [JBoss JIRA] Updated: (JBSEAM-1930) Improve documentation for @DataModelSelection and @DataModelSelectionIndex

Pete Muir (JIRA) jira-events at lists.jboss.org
Mon Sep 17 04:32:10 EDT 2007

     [ http://jira.jboss.com/jira/browse/JBSEAM-1930?page=all ]

Pete Muir updated JBSEAM-1930:

    Issue Type: Task  (was: Feature Request)
      Priority: Minor  (was: Major)

> Improve documentation for @DataModelSelection and @DataModelSelectionIndex
> --------------------------------------------------------------------------
>                 Key: JBSEAM-1930
>                 URL: http://jira.jboss.com/jira/browse/JBSEAM-1930
>             Project: JBoss Seam
>          Issue Type: Task
>    Affects Versions: 2.0.0.BETA1
>            Reporter: Jacob Orshalick
>            Priority: Minor
> The existing documentation for @DataModelSelection and @DataModelSelectionIndex seems to indicate to developers that you are naming the @DataModelSelection or @DataModelSelectionIndex context variable by specifying the value. I have heard this same question from every new member of my team when they try to use 2 DataModels in one component.
> The following patch (or something along these lines) is recommended for both @DataModelSelection and @DataModelSelectionIndex:
> @DataModelSelection
> Injects the selected value from the JSF DataModel (this is the element of the underlying collection, or the map value) that the DataModelSelection is associated with.  If only one @DataModel attribute is defined for a component, the selected value from that DataModel will be injected.  Otherwise, the component name of each @DataModel must be specified in the value attribute for each @DataModelSelection.
> @DataModel(value="list1")
> private List<String> list1;
> @DataModelSelection(value="list1")
> private String focusList1;
> @DataModel(value="list2")
> private List<String> list2;
> @DataModelSelection(value="list2")
> private String focusList2;
> Specifies that the attribute focusList1 is to be injected with the DataModelSelection for the component list1, and similarly focusList2 is injected with the DataModelSelection for list2.  Note:  @DataModelSelection is like @In.  If you want to outject a DataModelSelection, you will have to do so explicitly through by annotating the attribute with @Out.
> * value - name of the @DataModel conversation context variable this @DataModelSelection is associated with. Not needed if there is exactly one @DataModel in the component.

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