Traverse POJO based ADF treeTable, Get Child nodes of selected parent

//Component Binding of af:treeTable in bean
private RichTreeTable treeTableBind;

publicvoidsetTreeTableBind(RichTreeTable treeTableBind){
this.treeTableBind= treeTableBind;
}

public RichTreeTable getTreeTableBind(){
return treeTableBind;
}

Code to Traverse POJO based treeTable:

/**Method to iterate through all nodes of treeTable (parent and child both)
     * @param actionEvent
     */
publicvoidtraverseTreeTableAction(ActionEvent actionEvent){
//Get TreeTable CollectionModel
        CollectionModel treeModel =null;
        treeModel =(CollectionModel)this.getTreeTableBind().getValue();
//Creata an Object to RowKeys and collection model to it
        RowKeySet rks =new RowKeySetTreeImpl();
        rks.setCollectionModel(treeModel);
        rks.addAll();
//Iterate Over RowKeySet to get all nodes
for(Object o : rks){
            treeModel.setRowKey(o);
//Here treeTable shows list of Seasons objects
            Seasons season =(Seasons) treeModel.getRowData();
            System.out.println(""+ season.getName());
}
}

/**Method to iterate through all childs of selected node of treeTable
     * @param actionEvent
     */
publicvoidtraverseSelectedNodeTreeTableAction(ActionEvent actionEvent){
//Get Collection Model from treeTable binding
        CollectionModel treeModel =null;
        treeModel =(CollectionModel)this.getTreeTableBind().getValue();
        RowKeySet selectedChildKeys = getTreeTableBind().getSelectedRowKeys();
if(!selectedChildKeys.isEmpty()){
            List<Seasons> seasonList =(List<Seasons>) treeModel.getWrappedData();
//Create iterator from RowKeySet
            Iterator selectedCharIter = selectedChildKeys.iterator();
//Iterate over RowKeySet to get all selected childs of treeTable
while(selectedCharIter.hasNext()){
                List val =(List) selectedCharIter.next();
//Check that selected node should be parent node
if(val.size()==1){
//Get Seasons (Parent) List of selected row
                    Seasons s = seasonList.get(Integer.parseInt(val.get(0).toString()));
//Get character(Child) list of Seasons
                    List<Seasons> characters = s.getCharacters();
//Iterate over character list
                    Iterator iter = characters.iterator();
while(iter.hasNext()){
                        Seasons sp =(Seasons) iter.next();
                        System.out.println(""+sp.getName());
}
}
}
}
}