1 /* 2 * Licensed to the Apache Software Foundation (ASF) under one or more 3 * contributor license agreements. See the NOTICE file distributed with 4 * this work for additional information regarding copyright ownership. 5 * The ASF licenses this file to You under the Apache License, Version 2.0 6 * (the "License"); you may not use this file except in compliance with 7 * the License. You may obtain a copy of the License at 8 * 9 * http://www.apache.org/licenses/LICENSE-2.0 10 * 11 * Unless required by applicable law or agreed to in writing, software 12 * distributed under the License is distributed on an "AS IS" BASIS, 13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 14 * See the License for the specific language governing permissions and 15 * limitations under the License. 16 */ 17 package org.apache.commons.collections4.map; 18 19 import java.util.Collection; 20 import java.util.Map; 21 22 /** 23 * This class is used in TestCompositeMap. When testing serialization, 24 * the class has to be separate of TestCompositeMap, else the test 25 * class also has to be serialized. 26 */ 27 final class EmptyMapMutator<K, V> implements CompositeMap.MapMutator<K, V> { 28 /** Serialization version */ 29 private static final long serialVersionUID = -2729718980002476794L; 30 31 @Override 32 public V put(final CompositeMap<K, V> map, final Map<K, V>[] composited, final K key, final V value) { 33 return composited[0].put(key, value); 34 } 35 36 @Override 37 public void putAll(final CompositeMap<K, V> map, final Map<K, V>[] composited, final Map<? extends K, ? extends V> t) { 38 composited[0].putAll(t); 39 } 40 41 @Override 42 public void resolveCollision(final CompositeMap<K, V> composite, 43 final Map<K, V> existing, 44 final Map<K, V> added, 45 final Collection<K> intersect) { 46 // Do nothing 47 } 48 49 }