Group Used as LOV does not return records

Question

Have:
1. A header table called Claims
2. A detail table called ClaimLines
3. The Claims Table has a foreign key called emp_no which refers to an employee table ( Claims for an employee)
4. The ClaimLines table has a foreign key called mem_id which refers to an employee family members table that also has emp_no as a foreign key (family members for an employee)
5. A JHS group for Claims that shows the employee name and employee id. An LOV populates the employee name and employee id
6. A details group fro CalimLines that shows family member name. An LOV populates the member name and member id. (The idea is to pull family members for the employee selected in the header section in 5 above.
Problem:
The calims LOV populates the employee name and employee id correctly.
When I move to the calimlines (details), the members who should be restricted to the employee selected in the Claims group does not return any records.
The LOV for the members is based on a VO called DependentsofEmpolyee that has a where clause emp_no=:p_emp_id (:p_emp_id is a bind parameter)
The LOV group for the members has an EL expression in the Query Bind Parameters
p_emp_id=#{bindings.ClaimsEmpId.inputValue}. The expression is to restrict the members to those who belong to the employee selected in the Claims section of the page.
Debug gives the following information:
-ViewObject DependentsOfEmployee1: bind parameter values have not changed, NO Requery performed.
It seems that the p_emp_id is not being populated with the emp_id from the header section(Claims)
The same EL expression works if applied to a dynamic LOV. The drawback of the dynamic LOV is that is only populates two fields, the value attribute and the meaning attribute. In our case we need to populate more than one attribute.

Answer 1

Thanks for the input.
I tried the following
1. Create a managed bean in faces-config.xml.
<managed-bean>
<managed-bean-name>FamiliyLovContext</managed-bean-name>
<managed-bean-class>FamiliyLovContext</managed-bean-class>
<managed-bean-scope>session</managed-bean-scope>
</managed-bean>
2. Updated the skeleton class FamilyLovContext.java to:
public class FamiliyLovContext {
Number empId;
public void setEmpId(Number empId) {
this.empId = empId;
public Number getEmpId() {
return empId;
3. Copied tableLovItem to tableLovItemFamily and added the following to the section
<af:selectInputText
<af:setActionListener from="#{bindings.ClaimsEmpId.inputValue}"
to="#{FamilyLovContext.empId}"/>
4. Used the the new template for the lov item in the claimlines group.
5. set the query bind parameters of the lov group to #{FamilyLovContext.empId}
I gor the following error
16:38:08 ERROR (ApplyRequestValuesPhase) -java.lang.IllegalArgumentException: argument type mismatch
javax.faces.el.EvaluationException: java.lang.IllegalArgumentException: argument type mismatch
     at com.sun.faces.el.ValueBindingImpl.setValue(ValueBindingImpl.java:248)
     at oracle.adfinternal.view.faces.taglib.listener.SetActionListener.processAction(SetActionListener.java:50)
     at javax.faces.event.ActionEvent.processListener(ActionEvent.java:77)
     at oracle.adf.view.faces.component.UIXComponentBase.broadcast(UIXComponentBase.java:548)
     at oracle.adf.view.faces.component.UIXEditableValue.broadcast(UIXEditableValue.java:243)
     at oracle.adf.view.faces.component.UIXSelectInput.broadcast(UIXSelectInput.java:170)
The ClaimsEmpId attribute is Number(4,0)