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'rapiddweller Common' is an open source Java library forked from Databene Commons by Volker Bergmann. It provides extensions to the Java core library by utility classes, abstract concepts and concrete implementations.

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/*
 * Copyright (C) 2004-2015 Volker Bergmann ([email protected]).
 * All rights reserved.
 *
 * 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.rapiddweller.common.collection;

import java.util.Collection;
import java.util.Map;
import java.util.Set;

/**
 * Proxy class for a {@link Map}.
 * Created: 12.12.2012 11:49:35
 *
 * @param  The type of map to wrap
 * @param  the key type
 * @param  the value type
 * @author Volker Bergmann
 * @since 0.5.21
 */
public class MapProxy, K, V> implements Map {

  /**
   * The Real map.
   */
  protected final M realMap;

  /**
   * Instantiates a new Map proxy.
   *
   * @param realMap the real map
   */
  protected MapProxy(M realMap) {
    this.realMap = realMap;
  }

  /**
   * Gets real map.
   *
   * @return the real map
   */
  public Object getRealMap() {
    return realMap;
  }

  @Override
  public void clear() {
    realMap.clear();
  }

  @Override
  public boolean containsKey(Object key) {
    return realMap.containsKey(key);
  }

  @Override
  public boolean containsValue(Object value) {
    return realMap.containsValue(value);
  }

  @Override
  public Set> entrySet() {
    return realMap.entrySet();
  }

  @Override
  public V get(Object key) {
    return realMap.get(key);
  }

  @Override
  public boolean isEmpty() {
    return realMap.isEmpty();
  }

  @Override
  public Set keySet() {
    return realMap.keySet();
  }

  @Override
  public V put(K key, V value) {
    return realMap.put(key, value);
  }

  @Override
  public void putAll(Map m) {
    realMap.putAll(m);
  }

  @Override
  public V remove(Object key) {
    return realMap.remove(key);
  }

  @Override
  public int size() {
    return realMap.size();
  }

  @Override
  public Collection values() {
    return realMap.values();
  }


  // java.lang.Object overrides --------------------------------------------------------------------------------------

  @Override
  public int hashCode() {
    return realMap.hashCode();
  }

  @Override
  public boolean equals(Object o) {
    return realMap.equals(o);
  }

  @Override
  public String toString() {
    return realMap.toString();
  }

}