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'databene commons' is an open source Java library 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 org.databene.commons.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
 * @since 0.5.21
 * @author Volker Bergmann
 */
public class MapProxy, K, V> implements Map {
	
	protected final M realMap;
	
	protected MapProxy(M realMap) {
		this.realMap = realMap;
	}

	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();
	}

}