Method: DELETE_FROM_FAVOURITES_DB
Method: GET_FAVOURITES
Method: GET_FAVOURITES_DB
Method: GET_INSTANCE
Method: ADD_TO_FAVOURITES
Method: ADD_TO_FAVOURITES_DB
Method: FREE
Method: DELETE_FROM_FAVOURITES
Method: INITIALIZE
Method: DO_CLEANUP
Method: MODIFY_CREATE_BO_NODE
Method: MODIFY_DELETE_BO_NODE
Method: GET_ALL_USER_GROUP_FAVOURITES
Method: DO_ACTION