src/main/java/com/conveyal/gtfs/model/ShapeMap.java
@Override
    public Set<Integer> keySet() {
        // use a linkedhashset so values come out in order
        Set<Integer> ret = new LinkedHashSet<>();

        for (Tuple2<String, Integer> t : wrapped.keySet()) {
            ret.add(t.b);
        }

        // Don't let the user modify the set as it won't do what they expect (change the map)
        return Collections.unmodifiableSet(ret);
    }
@Override
    public Set<Integer> keySet() {
        // use a linkedhashset so values come out in order
        Set<Integer> ret = new LinkedHashSet<>();

        for (Tuple2<String, Integer> t : wrapped.keySet()) {
            ret.add(t.b);
        }

        // Don't let the user modify the set as it won't do what they expect (change the map)
        return Collections.unmodifiableSet(ret);
    }
@ Override public Set < Integer > keySet ( ) { // use a linkedhashset so values come out in order Set < Integer > ret = new LinkedHashSet <> ( ) ; for ( Tuple2 < String , Integer > t : wrapped . keySet ( ) ) { ret . add ( t . b ) ; } // Don't let the user modify the set as it won't do what they expect (change the map) return Collections . unmodifiableSet ( ret ) ; }
We currently just expose them as immutable sets in RAM, since all of the modification operations are optional.
We currently just expose them as immutable sets in RAM since all of the modification operations are optional .