Tuesday, November 3, 2009

Returning Multiple values from LOV in af:query with bind variables bug

We get nullPointerException when returning multiple values from LOV in view criteria with bind variables.

To reproduce it in EmployeesView for departmentId I added LOV that also return ManagerId.

It work fine for Forms (TestForm) and for tables(TestTable), but not for af:query with bind variables:

I created 2 view criteria with departmentId and ManagerId, 1 with bind variables and 1 with no bind variables. And 2 pages 1 for each
TestQuery1 with af:query with bind variables
TestQuery with af:query with no bind variables

When trying to select department in TestQuery1 we get:

Caused by: java.lang.NullPointerException
at oracle.adfinternal.view.faces.model.binding.FacesCtrlSearchBinding$AdfCriterionValues.(FacesCtrlSearchBinding.java:2834)
at oracle.adfinternal.view.faces.model.binding.FacesCtrlSearchBinding$AdfAttributeCriterion.(FacesCtrlSearchBinding.java:1732)
at oracle.adfinternal.view.faces.model.binding.FacesCtrlSearchBinding$AdfConjunctionCriterion._loadCriterionList(FacesCtrlSearchBinding.java:2775)
at oracle.adfinternal.view.faces.model.binding.FacesCtrlSearchBinding$AdfConjunctionCriterion._loadCriterionList(FacesCtrlSearchBinding.java:2725)
at oracle.adfinternal.view.faces.model.binding.FacesCtrlSearchBinding$AdfConjunctionCriterion.getCriterionList(FacesCtrlSearchBinding.java:2633)
at sun.reflect.GeneratedMethodAccessor840.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)

Yet TestQuery return correctly departmentId and ManagerId.

So I guess the workaround is not to use bind variables in view criteria.

Test Case


  1. I believe the multiple return values for an LOV do work in some build of 11g now.
    BUT here's the paradox:
    In the query panel's advanced mode, when you apply operator 'Not Equal To' to Department name, 'Equal To' (default operator specified in your view criteria) continues to get applied to DeptID