1 /* 2 * Copyright (C) 2009 The Guava Authors 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 package com.google.common.collect; 18 19 import com.google.common.annotations.Beta; 20 import com.google.common.annotations.GwtCompatible; 21 22 import java.util.Collection; 23 import java.util.Map; 24 import java.util.Set; 25 26 /** 27 * A table which forwards all its method calls to another table. Subclasses 28 * should override one or more methods to modify the behavior of the backing 29 * map as desired per the <a 30 * href="http://en.wikipedia.org/wiki/Decorator_pattern">decorator pattern</a>. 31 * 32 * @author Gregory Kick 33 * @since 7.0 34 */ 35 @Beta 36 @GwtCompatible 37 public abstract class ForwardingTable<R, C, V> extends ForwardingObject 38 implements Table<R, C, V> { 39 /** Constructor for use by subclasses. */ ForwardingTable()40 protected ForwardingTable() {} 41 delegate()42 @Override protected abstract Table<R, C, V> delegate(); 43 44 @Override cellSet()45 public Set<Cell<R, C, V>> cellSet() { 46 return delegate().cellSet(); 47 } 48 49 @Override clear()50 public void clear() { 51 delegate().clear(); 52 } 53 54 @Override column(C columnKey)55 public Map<R, V> column(C columnKey) { 56 return delegate().column(columnKey); 57 } 58 59 @Override columnKeySet()60 public Set<C> columnKeySet() { 61 return delegate().columnKeySet(); 62 } 63 64 @Override columnMap()65 public Map<C, Map<R, V>> columnMap() { 66 return delegate().columnMap(); 67 } 68 69 @Override contains(Object rowKey, Object columnKey)70 public boolean contains(Object rowKey, Object columnKey) { 71 return delegate().contains(rowKey, columnKey); 72 } 73 74 @Override containsColumn(Object columnKey)75 public boolean containsColumn(Object columnKey) { 76 return delegate().containsColumn(columnKey); 77 } 78 79 @Override containsRow(Object rowKey)80 public boolean containsRow(Object rowKey) { 81 return delegate().containsRow(rowKey); 82 } 83 84 @Override containsValue(Object value)85 public boolean containsValue(Object value) { 86 return delegate().containsValue(value); 87 } 88 89 @Override get(Object rowKey, Object columnKey)90 public V get(Object rowKey, Object columnKey) { 91 return delegate().get(rowKey, columnKey); 92 } 93 94 @Override isEmpty()95 public boolean isEmpty() { 96 return delegate().isEmpty(); 97 } 98 99 @Override put(R rowKey, C columnKey, V value)100 public V put(R rowKey, C columnKey, V value) { 101 return delegate().put(rowKey, columnKey, value); 102 } 103 104 @Override putAll(Table<? extends R, ? extends C, ? extends V> table)105 public void putAll(Table<? extends R, ? extends C, ? extends V> table) { 106 delegate().putAll(table); 107 } 108 109 @Override remove(Object rowKey, Object columnKey)110 public V remove(Object rowKey, Object columnKey) { 111 return delegate().remove(rowKey, columnKey); 112 } 113 114 @Override row(R rowKey)115 public Map<C, V> row(R rowKey) { 116 return delegate().row(rowKey); 117 } 118 119 @Override rowKeySet()120 public Set<R> rowKeySet() { 121 return delegate().rowKeySet(); 122 } 123 124 @Override rowMap()125 public Map<R, Map<C, V>> rowMap() { 126 return delegate().rowMap(); 127 } 128 129 @Override size()130 public int size() { 131 return delegate().size(); 132 } 133 134 @Override values()135 public Collection<V> values() { 136 return delegate().values(); 137 } 138 equals(Object obj)139 @Override public boolean equals(Object obj) { 140 return (obj == this) || delegate().equals(obj); 141 } 142 hashCode()143 @Override public int hashCode() { 144 return delegate().hashCode(); 145 } 146 } 147