question: public void addWayRef ( MapWay way , int nodeIdx ) { if ( ways == null ) ways = new ArrayList < WayRef > ( 2 ) ; if ( ways . isEmpty ( ) || ways . get ( 0 ) != way ) ways . add ( new DefaultWayRef ( way , ( short ) nodeIdx ) ) ; }
target:  Adds the information to the node that it is part of the specified way. 