question: public void finish ( ) { if ( readyToUse == false ) { readyToUse = true ; outList . clear ( ) ; if ( tableView . size ( ) == 0 ) return ; for ( Map . Entry < Node , List < VarType > > entry : tableView . entrySet ( ) ) { List < VarType > resList = entry . getValue ( ) ; outList . addAll ( resList ) ; } } }
target:  Called after each round of collection.