Method: GET_SUBTREE
Method: CREATE_ITERATOR
Method: CONSTRUCTOR
Method: IF_DPR_ITERATOR~FIRST
Method: COMPLETE_ELEMENTS
Method: IF_DPR_ITERATOR~NEXT
Method: IF_DPR_ITERATOR~IS_DONE
Method: IF_DPR_ITERATOR~GET_CURRENT
Method: IF_DPR_ITERATOR~FREE
Method: DESCENT
Method: TRY_LEVEL
Method: GET_FIRST_ON_NEXT_LEVEL
Method: GET_ALL_PARTICIPANTS
Method: GET_SC_OF_TREE