Method: GET_HIER_OBJECT_SEQNR
Method: CLEANUP
Method: GET_OBJECT_CHILDREN
Method: CONSTRUCTOR
Method: ADD_NODE
Method: SET_MERGED_FIELDS
Method: ADD_BASE_HIER_EDGE
Method: BUILD_LINE
Method: CREATE_SPECIAL_HIERARCHY
Method: TRAVERSE
Method: INIT
Method: SET_OBJECT_SEQNR
Method: FREE_HIERARCHY
Method: GET_OBJECT_SEQNR
Method: GET_INSTANCE
Method: GET_SEQNR_OBJECT_ID