| /* |
| * Copyright 2014 Google Inc. |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except |
| * in compliance with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software distributed under the License |
| * is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express |
| * or implied. See the License for the specific language governing permissions and limitations under |
| * the License. |
| */ |
| package com.google.gwt.dev.util.collect; |
| |
| import cern.colt.list.IntArrayList; |
| |
| /** |
| * An int multimap that cannot hold duplicate key-value pairs. |
| * <p> |
| * Because only int primitives are used performance and memory usage can surpass Object set |
| * multimaps. |
| */ |
| public class IntHashMultimap extends IntMultimap { |
| |
| @Override |
| public void put(int key, int value) { |
| Object objectValues = map.get(key); |
| if (objectValues != null) { |
| IntArrayList listValues = (IntArrayList) objectValues; |
| // Don't add duplicate values. |
| if (!listValues.contains(value)) { |
| listValues.add(value); |
| } |
| } else { |
| IntArrayList listValues = new IntArrayList(); |
| listValues.add(value); |
| map.put(key, listValues); |
| } |
| } |
| } |