Access Iterator binding from a region

Question

Hi,
Using JDEV 11.1.1.5.0
I've created a ADF Tree dynamically from a single table(Using recursive concept) in center region. User can select the required elements from ADF tree and then click on Command button. So far, I've achieved till this part.
The pending part is, two regions(Bottom & Right) need to refresh at a time with button click.
Now I need to display selected elements in bottom region. Also need to provide the selected nodes information to do some calculation in the right region at a time.
Following is the jspx code:
<f:view>
<af:document id="d1">
<af:form id="f1">
<af:panelSplitter id="ps1" orientation="vertical">
<f:facet name="first">
<af:panelGroupLayout id="pgl1">
<af:panelSplitter id="ps3">
<f:facet name="first">
<af:panelGroupLayout layout="scroll"
xmlns:af="http://xmlns.oracle.com/adf/faces/rich"
id="pgl4">
<af:panelFormLayout id="pfl1">
<af:region value="#{bindings.dynamicRegion1.regionModel}"
id="r1"/>
</af:panelFormLayout>
</af:panelGroupLayout>
</f:facet>
<f:facet name="second">
<af:panelGroupLayout id="pgl5">
<af:panelFormLayout id="pfl2">
<af:commandButton text="Update" id="cb1"/>
          <af:outputText value="Select Folders or Files" id="ot1"/>
<af:region value="#{bindings.dynamicRegion2.regionModel}"
id="r2"/>
</af:panelFormLayout>
</af:panelGroupLayout>
</f:facet>
</af:panelSplitter>
</af:panelGroupLayout>
</f:facet>
<f:facet name="second">
<af:panelGroupLayout id="pgl2">
<af:outputText value="Selected Files" id="ot1"/>
          <!-- Need to extract the selected nodes here.-->
</af:panelGroupLayout>
</f:facet>
</af:panelSplitter>
</af:form>
</af:document>
</f:view>
Some how, i could not able proceed further on this.
Can you provide hint on this usecase to proceed further.
Thanks,
Samba.

Answer 1

Finally able to communicate between two regions with the help of programmatic contextual event approach. Now I need to iterate through the dynamic tree in my event controller and then display the selected documents in bottom region. Following is the code for source fragment in which first region contains dynamic tree and second region contains selected documents list.
<f:facet name="first">
     <af:panelGroupLayout layout="scroll"
                              xmlns:af="http://xmlns.oracle.com/adf/faces/rich"
                              id="pgl4">
     <af:commandButton text="Update" id="cb1"
                              actionListener="#{pageFlowScope.EventPublisherBean.doAction}"
                              action="selected_documents"/>
     <af:region value="#{bindings.dynamicRegion1.regionModel}"
                    id="r2"/>
     </af:panelGroupLayout>
</f:facet>
<f:facet name="second">
     <af:panelLabelAndMessage label="Documents Selected" id="plam1">
     <af:panelGroupLayout id="pgl2">
     <af:region value="#{bindings.selecteddocs1.regionModel}" id="r3"/>
     </af:panelGroupLayout>
     </af:panelLabelAndMessage>
</f:facet>
Following is the sample handleEvent method. Here able to get the source region components information & able to set the values in target regions.
public void handleEvent(Object payload){
ActionEvent actionEvent = (ActionEvent)payload;
UIComponent component = (UIComponent)actionEvent.getSource();
UIComponent parent = (UIComponent)component.getParent();
String parentId = parent.getId();
System.out.println("PARENT ID:"+parentId);
System.out.println("Component ID:"+component.getId());
FacesContext context = FacesContext.getCurrentInstance();
ELContext elContext = context.getELContext();
Application app = context.getApplication();
ExpressionFactory expFactory = app.getExpressionFactory();
ValueExpression valueExp = expFactory.createValueExpression(elContext, "#{pageFlowScope.SubscriberBean}", Object.class);
SubscriberBean bean = (SubscriberBean)valueExp.getValue(elContext) ;
bean.setFName("YYYYY");
AdfFacesContext adfContext = AdfFacesContext.getCurrentInstance();
adfContext.addPartialTarget(bean.getFnameField());
can you give a hint to iterate through dynamic tree binding to get information of selected tree nodes?
Once we got the selected nodes of tree, how can we print the results on to target region?
Thanks,
Samba
Edited by: 949171 on Oct 14, 2012 12:12 AM