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mchange-commons-java

There is a newer version: 0.3.1

/*
 * Distributed as part of mchange-commons-java v.0.2.3
 *
 * Copyright (C) 2012 Machinery For Change, Inc.
 *
 * Author: Steve Waldman 
 *
 * This library is free software; you can redistribute it and/or modify
 * it under the terms of the GNU Lesser General Public License version 2.1, as 
 * published by the Free Software Foundation.
 *
 * This software 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 software; see the file LICENSE.  If not, write to the
 * Free Software Foundation, Inc., 59 Temple Place, Suite 330,
 * Boston, MA 02111-1307, USA.
 */


package com.mchange.v1.cachedstore;

import java.util.Collections;
import java.util.Set;

class NoCacheWritableCachedStore implements WritableCachedStore, Autoflushing
{
    WritableCachedStore.Manager mgr;

    NoCacheWritableCachedStore(WritableCachedStore.Manager mgr)
    { this.mgr = mgr; }

    public Object find(Object key) throws CachedStoreException
    { 
	try {return mgr.recreateFromKey( key ); }
	catch (Exception e)
	    {
		e.printStackTrace();
		throw CachedStoreUtils.toCachedStoreException( e ); 
	    }
    }

    public void reset()
    {}

    public void write(Object key, Object value) throws CachedStoreException
    { 
	try { mgr.writeToStorage( key , value ); }
	catch (Exception e)
	    {
		e.printStackTrace();
		throw CachedStoreUtils.toCachedStoreException( e ); 
	    }
    }

    public void remove(Object key) throws CachedStoreException
    { 
	try { mgr.removeFromStorage( key ); }
	catch (Exception e)
	    {
		e.printStackTrace();
		throw CachedStoreUtils.toCachedStoreException( e ); 
	    }
    }

    public void flushWrites() throws CacheFlushException
    {}

    public Set  getFailedWrites() throws CachedStoreException
    { return Collections.EMPTY_SET; }

    public void clearPendingWrites() throws CachedStoreException
    {}

    public void sync() throws CachedStoreException
    {}
}