PageDef operatingBinding is not visible or returning null

Question

Hi,
I have an ADF application with taskflow which contains a page fragement which has some methodAction bindings in its pageDef.
I dragged this taskflow as a region in a Webcenter Portal application project page which has a pageTemplate. When that page opens, it opens fine by initializing the page which involves invoking some methodAction bindings.
After the page got loaded, I click on a button, this again requires methodAction bindings but this time that operationBinding is returning null. so, I am not able to invoke the method.
I am getting the operatingBinding in my managed bean as below. operatingBinding is fine while loading the page (init method) but it is giving null when I click on any button in the page after page load.
OperationBinding operationBinding = getBindings().getOperationBinding("getPersonId")
public BindingContainer getBindings() {
if(this.bindings == null){
FacesContext fc = FacesContext.getCurrentInstance();
this.bindings = (BindingContainer)fc.getApplication().evaluateExpressionGet(fc, "#{bindings}", BindingContainer.class);
return bindings;
I dragged the same taskflow to an other ADF application and it worked fine before and after loading the page. I do not understand why it is not working in portal application. But it is nothing to do with Webcenter I believe. I just wanted to know if anyone faced this issue before. Please give some pointers if you have any.
regards
Vinay Kumar

Answer 1

Page Definition is
*<?xml version="1.0" encoding="UTF-8" ?>*
*<pageDefinition xmlns="http://xmlns.oracle.com/adfm/uimodel"*
version="11.1.1.59.23" id="SearchFragmentPageDef"
Package="com.johnlewis.cpl.wcportal.ui">
*<parameters/>*
*<executables>*
*<variableIterator id="variables"/>*
*<iterator Binds="PartnerHrchy" RangeSize="25"*
DataControl="PartnerSearchAMDataControl"
id="PartnerHrchyIterator"/>
*<iterator Binds="PartnerSearchTempVO1" RangeSize="25"*
DataControl="PartnerSearchAMDataControl"
id="PartnerSearchTempVO1Iterator"/>
*<searchRegion Binds="PartnerSearchTempVO1Iterator" Criteria=""*
Customizer="oracle.jbo.uicli.binding.JUSearchBindingCustomizer"
id="PartnerSearchTempVO1Query"/>
*</executables>*
*<bindings>*
*<methodAction id="getPersonId"*
InstanceName="PartnerSearchAMDataControl.dataProvider"
DataControl="PartnerSearchAMDataControl"
RequiresUpdateModel="true" Action="invokeMethod"
MethodName="getPersonId" IsViewObjectMethod="false"
ReturnName="data.PartnerSearchAMDataControl.methodResults.getPersonId_PartnerSearchAMDataControl_dataProvider_getPersonId_result">
*<NamedData NDName="uname" NDType="java.lang.String"/>*
*</methodAction>*
*<methodAction id="initPartnerSearch"*
InstanceName="PartnerSearchAMDataControl.dataProvider"
DataControl="PartnerSearchAMDataControl"
RequiresUpdateModel="true" Action="invokeMethod"
MethodName="initPartnerSearch" IsViewObjectMethod="false"
ReturnName="data.PartnerSearchAMDataControl.methodResults.initPartnerSearch_PartnerSearchAMDataControl_dataProvider_initPartnerSearch_result">
*<NamedData NDName="uname" NDType="java.lang.String"/>*
*</methodAction>*
*<methodAction id="searchPartnerTempTable"*
InstanceName="PartnerSearchAMDataControl.dataProvider"
DataControl="PartnerSearchAMDataControl"
RequiresUpdateModel="true" Action="invokeMethod"
MethodName="searchPartnerTempTable"
IsViewObjectMethod="false">
*<NamedData NDName="uname" NDType="java.lang.String"/>*
*<NamedData NDName="param" NDType="java.lang.String"/>*
*<NamedData NDName="leavers" NDType="java.lang.String"/>*
*</methodAction>*
*<tree IterBinding="PartnerHrchyIterator" id="PartnerHrchy">*
*<nodeDefinition DefName="com.johnlewis.cpl.wcportal.model.view.PartnerHrchy"*
Name="PartnerHrchy0">
*<AttrNames>*
*<Item Value="FullName"/>*
*<Item Value="Position"/>*
*<Item Value="LocationCode"/>*
*</AttrNames>*
*<Accessors>*
*<Item Value="PositionIdPartnerHrchy"/>*
*</Accessors>*
*</nodeDefinition>*
*</tree>*
*<tree IterBinding="PartnerSearchTempVO1Iterator" id="PartnerSearchTempVO1">*
*<nodeDefinition DefName="com.johnlewis.cpl.wcportal.model.view.PartnerSearchTempVO"*
Name="PartnerSearchTempVO10">
*<AttrNames>*
*<Item Value="PartnerName"/>*
*<Item Value="EmployeeNumber"/>*
*<Item Value="SecurityProfileName"/>*
*<Item Value="ResponsibilityName"/>*
*<Item Value="PositionCode"/>*
*<Item Value="LocationCode"/>*
*</AttrNames>*
*</nodeDefinition>*
*</tree>*
*</bindings>*
*</pageDefinition>*
Managed Bean code to invoke methodAction is
*public void myTimeCard(ActionEvent actionEvent) {*
*// Add event code here...*
String uname = null;
uname = ADFContext.getCurrent().getSecurityContext().getUserName();
System.out.println("User name is " + uname);
OperationBinding operationBinding = getBindings().getOperationBinding("getPersonId");
System.out.println("Before setting parameters");
System.out.println("operationBinding is " + operationBinding);
*if(operationBinding != null){*
operationBinding.getParamsMap().put("uname", uname);
System.out.println("After setting parameters");
String out = (String)operationBinding.execute();
System.out.println("After invoking method");
System.out.println("Person Id from getPersonId is " + out);
if(out != null)
personId = Long.parseLong(out);
System.out.println("Person Id of search is " + personId);
System.out.println("User name is " + uname);
ADFContext.getCurrent().getPageFlowScope().put("personId", personId);
ADFContext.getCurrent().getPageFlowScope().put("respId", null);
ADFContext.getCurrent().getPageFlowScope().put("type", "ess");
ADFContext.getCurrent().getPageFlowScope().put("userName",uname); //TODO username need to be passed from security Context
*}*