@Override public Double get(long key) { if (vector.containsKey(key)) { return vector.get(key); } else { return defaultReturnValue(); } }
@Override public int size() { return vector.size(); }
@Override public boolean containsKey(long key) { return vector.containsKey(key); }
@Override public ObjectCollection<Double> values() { return CollectionUtils.objectCollection(vector.values()); }
@Override public LongSet keySet() { return vector.keySet(); }