rem: NoteAndMemo(KNoteID_pt noteid,int memoid) : noteId(noteid),memoId(memoid) { } ;
add: NoteAndMemo() : noteId(),memoId(-1) { } ;
context: 	NoteAndMemo(KNoteID_pt noteid,int memoid) : noteId(noteid),memoId(memoid) { } ;