Iterator Binding + Attribute binding problem

Question

I have created a SelectOneListbox and an associated attirute binding in my pagedef. When I try to access the changed value in my managed bean event handler method - I get a null object. However the index for the changed value is passed fine.
tempIter.getRowAtRangeIndex( index ) returns a null object.
I tried using attribute binding - that does not work either.
Managed bean:
public void productChange(ValueChangeEvent valueChangeEvent) {
// Add event code here...
BindingContainer bc = this.getBindings();
// get the selected department
DCIteratorBinding tempIter = (DCIteratorBinding) bc.get("TempIterator");
if ( tempIter != null ){
Object newVal= (Object)valueChangeEvent.getNewValue();
System.out.println("New Product value:"+newVal);
String ss = (String)newVal.toString();
Row rw = tempIter.getRowAtRangeIndex(Integer.parseInt(ss));
if ( rw!=null ) {
String[] attrs = rw.getAttributeNames();
//Object prodName = (Object) rw.getAttribute("ProdId");
System.out.println(" Attribute value:"+ attrs);
} else System.out.println(" Null row ");
//trying to get value from attribute binding
AttributeBinding prodIdBinding =
(AttributeBinding)getBindings().getControlBinding("TempId");
if ( prodIdBinding != null){
Object deptId = (Object)prodIdBinding.getInputValue();
if ( deptId != null)
System.out.println("Finally value:"+deptId.toString());
else
System.out.println("Cant access value for department id");
} else System.out.println("**********Product id binding is null");
Pagedef:
<?xml version="1.0" encoding="UTF-8" ?>
<pageDefinition xmlns="http://xmlns.oracle.com/adfm/uimodel"
version="10.1.3.41.57" id="lov6PageDef" Package="view.pageDefs">
<parameters/>
<executables>
<iterator id="ProductViewIterator" RangeSize="-1" Binds="ProductView"
DataControl="SRTest1DataControl"/>
<iterator id="TempIterator" RangeSize="10" Binds="Temp"
DataControl="SRTest1DataControl"/>
</executables>
<bindings>
<table id="ProductView" IterBinding="ProductViewIterator">
<AttrNames>
<Item Value="ProdId"/>
<Item Value="Name"/>
<Item Value="Image"/>
<Item Value="Description"/>
</AttrNames>
</table>
<list id="TempTempId" IterBinding="TempIterator" StaticList="false"
ListOperMode="0" ListIter="ProductViewIterator">
<AttrNames>
<Item Value="TempId"/>
</AttrNames>
<ListAttrNames>
<Item Value="ProdId"/>
</ListAttrNames>
<ListDisplayAttrNames>
<Item Value="Name"/>
</ListDisplayAttrNames>
</list>
<attributeValues IterBinding="TempIterator" id="TempName">
<AttrNames>
<Item Value="TempName"/>
</AttrNames>
</attributeValues>
<methodAction id="displayProductValue"
InstanceName="SRTest1DataControl.dataProvider"
DataControl="SRTest1DataControl"
MethodName="displayProductValue" RequiresUpdateModel="true"
Action="999" IsViewObjectMethod="false"/>
<attributeValues IterBinding="TempIterator" id="TempId">
<AttrNames>
<Item Value="TempId"/>
</AttrNames>
</attributeValues>
</bindings>
</pageDefinition>

Answer 1

Frank,
When I try to obtain the row directly using the code below I get a class cast exception.
Row rw = prodIter.getRowAtRangeIndex(( (Integer)valueChangeEvent.getNewValue()).intValue());
javax.faces.el.EvaluationException: java.lang.ClassCastException: oracle.jbo.domain.Number
     at com.sun.faces.el.MethodBindingImpl.invoke(MethodBindingImpl.java:150)
     at oracle.adf.view.faces.component.UIXComponentBase.__broadcast(UIXComponentBase.java:1087)
     at oracle.adf.view.faces.component.UIXEditableValue.broadcast(UIXEditableValue.java:247)
     at javax.faces.component.UIViewRoot.broadcastEvents(UIViewRoot.java:269)
     at javax.faces.component.UIViewRoot.processValidators(UIViewRoot.java:363)
     at com.sun.faces.lifecycle.ProcessValidationsPhase.execute(ProcessValidationsPhase.java:98)
     at com.sun.faces.lifecycle.LifecycleImpl.phase(LifecycleImpl.java:245)
     at com.sun.faces.lifecycle.LifecycleImpl.execute(LifecycleImpl.java:110)
     at javax.faces.webapp.FacesServlet.service(FacesServlet.java:213)
     at com.evermind.server.http.ResourceFilterChain.doFilter(ResourceFilterChain.java:65)
     at oracle.adfinternal.view.faces.webapp.AdfFacesFilterImpl._invokeDoFilter(AdfFacesFilterImpl.java:228)
     at oracle.adfinternal.view.faces.webapp.AdfFacesFilterImpl._doFilterImpl(AdfFacesFilterImpl.java:197)
     at oracle.adfinternal.view.faces.webapp.AdfFacesFilterImpl.doFilter(AdfFacesFilterImpl.java:123)
     at oracle.adf.view.faces.webapp.AdfFacesFilter.doFilter(AdfFacesFilter.java:103)
     at com.evermind.server.http.EvermindFilterChain.doFilter(EvermindFilterChain.java:15)
     at oracle.adf.model.servlet.ADFBindingFilter.doFilter(ADFBindingFilter.java:162)
     at com.evermind.server.http.ServletRequestDispatcher.invoke(ServletRequestDispatcher.java:621)
     at com.evermind.server.http.ServletRequestDispatcher.forwardInternal(ServletRequestDispatcher.java:370)
     at com.evermind.server.http.HttpRequestHandler.doProcessRequest(HttpRequestHandler.java:871)
     at com.evermind.server.http.HttpRequestHandler.processRequest(HttpRequestHandler.java:453)
     at com.evermind.server.http.HttpRequestHandler.serveOneRequest(HttpRequestHandler.java:221)
     at com.evermind.server.http.HttpRequestHandler.run(HttpRequestHandler.java:122)
     at com.evermind.server.http.HttpRequestHandler.run(HttpRequestHandler.java:111)
     at oracle.oc4j.network.ServerSocketReadHandler$SafeRunnable.run(ServerSocketReadHandler.java:260)
     at oracle.oc4j.network.ServerSocketAcceptHandler.procClientSocket(ServerSocketAcceptHandler.java:239)
     at oracle.oc4j.network.ServerSocketAcceptHandler.access$700(ServerSocketAcceptHandler.java:34)
     at oracle.oc4j.network.ServerSocketAcceptHandler$AcceptHandlerHorse.run(ServerSocketAcceptHandler.java:880)
     at com.evermind.util.ReleasableResourcePooledExecutor$MyWorker.run(ReleasableResourcePooledExecutor.java:303)
     at java.lang.Thread.run(Thread.java:595)
Caused by: java.lang.ClassCastException: oracle.jbo.domain.Number
     at Lov6.productChange(Lov6.java:49)
     at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
     at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
     at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
     at java.lang.reflect.Method.invoke(Method.java:585)
     at com.sun.faces.el.MethodBindingImpl.invoke(MethodBindingImpl.java:146)
     ... 28 more