001 /* 002 * Copyright (C) 2009 The Guava Authors 003 * 004 * Licensed under the Apache License, Version 2.0 (the "License"); 005 * you may not use this file except in compliance with the License. 006 * You may obtain a copy of the License at 007 * 008 * http://www.apache.org/licenses/LICENSE-2.0 009 * 010 * Unless required by applicable law or agreed to in writing, software 011 * distributed under the License is distributed on an "AS IS" BASIS, 012 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 013 * See the License for the specific language governing permissions and 014 * limitations under the License. 015 */ 016 017 package com.google.common.collect; 018 019 import com.google.common.annotations.Beta; 020 import com.google.common.annotations.GwtCompatible; 021 022 import java.util.Collection; 023 import java.util.Map; 024 import java.util.Set; 025 026 /** 027 * A table which forwards all its method calls to another table. Subclasses 028 * should override one or more methods to modify the behavior of the backing 029 * map as desired per the <a 030 * href="http://en.wikipedia.org/wiki/Decorator_pattern">decorator pattern</a>. 031 * 032 * @author Gregory Kick 033 * @since 7 034 */ 035 @Beta 036 @GwtCompatible 037 public abstract class ForwardingTable<R, C, V> extends ForwardingObject 038 implements Table<R, C, V> { 039 /** Constructor for use by subclasses. */ 040 protected ForwardingTable() {} 041 042 @Override protected abstract Table<R, C, V> delegate(); 043 044 @Override 045 public Set<Cell<R, C, V>> cellSet() { 046 return delegate().cellSet(); 047 } 048 049 @Override 050 public void clear() { 051 delegate().clear(); 052 } 053 054 @Override 055 public Map<R, V> column(C columnKey) { 056 return delegate().column(columnKey); 057 } 058 059 @Override 060 public Set<C> columnKeySet() { 061 return delegate().columnKeySet(); 062 } 063 064 @Override 065 public Map<C, Map<R, V>> columnMap() { 066 return delegate().columnMap(); 067 } 068 069 @Override 070 public boolean contains(Object rowKey, Object columnKey) { 071 return delegate().contains(rowKey, columnKey); 072 } 073 074 @Override 075 public boolean containsColumn(Object columnKey) { 076 return delegate().containsColumn(columnKey); 077 } 078 079 @Override 080 public boolean containsRow(Object rowKey) { 081 return delegate().containsRow(rowKey); 082 } 083 084 @Override 085 public boolean containsValue(Object value) { 086 return delegate().containsValue(value); 087 } 088 089 @Override 090 public V get(Object rowKey, Object columnKey) { 091 return delegate().get(rowKey, columnKey); 092 } 093 094 @Override 095 public boolean isEmpty() { 096 return delegate().isEmpty(); 097 } 098 099 @Override 100 public V put(R rowKey, C columnKey, V value) { 101 return delegate().put(rowKey, columnKey, value); 102 } 103 104 @Override 105 public void putAll(Table<? extends R, ? extends C, ? extends V> table) { 106 delegate().putAll(table); 107 } 108 109 @Override 110 public V remove(Object rowKey, Object columnKey) { 111 return delegate().remove(rowKey, columnKey); 112 } 113 114 @Override 115 public Map<C, V> row(R rowKey) { 116 return delegate().row(rowKey); 117 } 118 119 @Override 120 public Set<R> rowKeySet() { 121 return delegate().rowKeySet(); 122 } 123 124 @Override 125 public Map<R, Map<C, V>> rowMap() { 126 return delegate().rowMap(); 127 } 128 129 @Override 130 public int size() { 131 return delegate().size(); 132 } 133 134 @Override 135 public Collection<V> values() { 136 return delegate().values(); 137 } 138 139 @Override public boolean equals(Object obj) { 140 return (obj == this) || delegate().equals(obj); 141 } 142 143 @Override public int hashCode() { 144 return delegate().hashCode(); 145 } 146 }