question: public void addSet ( String name , TupleSet set ) { if ( hasSet ( name ) ) { throw new IllegalArgumentException ( "Name already in use: " + name ) ; } m_map . put ( name , set ) ; m_sets . add ( set ) ; m_count += set . getTupleCount ( ) ; if ( m_lstnr != null ) set . addTupleSetListener ( m_lstnr ) ; }
target:  Add a TupleSet to this composite.