AppendableMemoryCache.java

Violations

Source code

/*
 * hgcommons 9
 * Hammurapi Group Common Library
 * Copyright (C) 2003  Hammurapi Group
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2 of the License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 *
 * URL: http://www.hammurapi.biz/hammurapi-biz/ef/xmenu/hammurapi-group/products/products/hgcommons/index.html
 * e-Mail: support@hammurapi.biz
 */
package biz.hammurapi.cache;

import java.util.Timer;

import biz.hammurapi.metrics.MeasurementCategory;

/**
 * Cache which supports addition of entries.
 * @author Pavel Vlasov
 * @revision $Revision$
 */
public class AppendableMemoryCache extends MemoryCache implements AppendableCache {

	public AppendableMemoryCache(AppendableProducer producer, Cache fallBack, 	MeasurementCategory measurementCategory) {
		super(producer, fallBack, measurementCategory);
	}

	public AppendableMemoryCache(
			AppendableProducer producer, 
			Cache fallBack, 	
			MeasurementCategory measurementCategory, 
			Timer timer, long cleanupInterval) {
		super(producer, fallBack, measurementCategory, timer, cleanupInterval);		
	}
	
	public Object add(Object value, long time, long expirationTime) {
		synchronized (cache) {
			if (reverseCache.containsKey(value)) {
				return reverseCache.get(value);
			}
		}
		
		Object key=((AppendableProducer) producer).add(value);
		put(key, value, time, expirationTime);
		return key;
	}

}