Not able to expand Treetable structure programmatically

Question

We had implemented expanding Treetable structure programmatically. But when we are uptaking our UI to PS4, the expand operation is not working and we are getting exceptions.
We are expanding Treetable through program, for example when try to expand first child of first node, we are passing Disclosed keys like 0,0 to the Treetable using the setDisclosedRowKeys() method.
While trying to expand we are getting the following exception:
No data found for key 0, 0
ADF_FACES-60097:For more information, please see the server's error log for an entry beginning with: ADF_FACES-60096:Server Exception during PPR, #5
Please correct me if I miss anything.

Answer 1

this code works for me..
disclosedRowKeys="#{pageFlowScope.orderBean.disclosedTreeRowKeySet}"
rowDisclosureListener="#{pageFlowScope.orderBean.rowDisclosureListener}">
public void rowDisclosureListener(RowDisclosureEvent rowDisclosureEvent)
Iterator added = rowDisclosureEvent.getAddedSet().iterator();
if (added!=null)
while (added.hasNext())
Object rowKey = added.next();
//disclosedTreeRowKeySet.clear();
List path = (List)rowKey;
for( int i=0; i< path.size(); i++ )
List<Object> nodePath = new ArrayList<Object>();
for( int j=0; j<i; j++ )
nodePath.add( path.get( j ) );
disclosedTreeRowKeySet.add( nodePath );
disclosedTreeRowKeySet.add( rowKey );
System.out.println( "disclosed Keys...... " + disclosedTreeRowKeySet );
private void expandSelectedFundingNode(RowKeySet addedObj) {
if (sourceTreeTable != null) {
Iterator added = (Iterator)addedObj.iterator();
if (added!=null)
while (added.hasNext())
Object rowKey = added.next();
List path = (List)rowKey;
for( int i=0; i< path.size(); i++ )
List<Object> nodePath = new ArrayList<Object>();
for( int j=0; j<i; j++ )
nodePath.add( path.get( j ) );
disclosedTreeRowKeySet.add( nodePath );
disclosedTreeRowKeySet.add( rowKey );
sourceTreeTable.setDisclosedRowKeys(disclosedTreeRowKeySet);
}