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CacheBase.javaAPI DocGlassfish v2 API2893Fri May 04 22:30:32 BST 2007com.sun.appserv.management.client.handler

CacheBase.java

/*
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
 * 
 * Copyright 1997-2007 Sun Microsystems, Inc. All rights reserved.
 * 
 * The contents of this file are subject to the terms of either the GNU
 * General Public License Version 2 only ("GPL") or the Common Development
 * and Distribution License("CDDL") (collectively, the "License").  You
 * may not use this file except in compliance with the License. You can obtain
 * a copy of the License at https://glassfish.dev.java.net/public/CDDL+GPL.html
 * or glassfish/bootstrap/legal/LICENSE.txt.  See the License for the specific
 * language governing permissions and limitations under the License.
 * 
 * When distributing the software, include this License Header Notice in each
 * file and include the License file at glassfish/bootstrap/legal/LICENSE.txt.
 * Sun designates this particular file as subject to the "Classpath" exception
 * as provided by Sun in the GPL Version 2 section of the License file that
 * accompanied this code.  If applicable, add the following below the License
 * Header, with the fields enclosed by brackets [] replaced by your own
 * identifying information: "Portions Copyrighted [year]
 * [name of copyright owner]"
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 * 
 * If you wish your version of this file to be governed by only the CDDL or
 * only the GPL Version 2, indicate your decision by adding "[Contributor]
 * elects to include this software in this distribution under the [CDDL or GPL
 * Version 2] license."  If you don't indicate a single choice of license, a
 * recipient has the option to distribute your version of this file under
 * either the CDDL, the GPL Version 2 or to extend the choice of license to
 * its licensees as provided above.  However, if you add GPL Version 2 code
 * and therefore, elected the GPL Version 2 license, then the option applies
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 */
package com.sun.appserv.management.client.handler;

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

import java.util.logging.Logger;
import com.sun.appserv.management.base.LoggerSupport;

/**
	Cache which caches anything
 */
class CacheBase<K,V>
{
	private final Map<K,V>		mCache;
	
	/**
	 */
		public
	CacheBase()
	{
		mCache	= Collections.synchronizedMap( new HashMap<K,V>() );
	}
	
	/**
		Cache a proxy using any desired key.
	 */
		public void
	cacheItem(
		final K	key,
		final V	value )
	{
		mCache.put( key, value );
	}
	
		public V
	getCachedItem( K key )
	{
		return( mCache.get( key ) );
	}
	
		public void
	remove( final K key )
	{
		mCache.remove( key );
	}
	
		public Set<K>
	keySet()
	{
		return( mCache.keySet() );
	}
    
    
		public Collection<V>
	values()
	{
		return( mCache.values() );
	}
    
		public void
	clear()
	{
		mCache.clear();
	}
}