com.mchange.v1.cachedstore.NoCacheCachedStore Maven / Gradle / Ivy
/*
* Distributed as part of mchange-commons-java 0.2.11
*
* Copyright (C) 2015 Machinery For Change, Inc.
*
* Author: Steve Waldman
*
* This library is free software; you can redistribute it and/or modify
* it under the terms of EITHER:
*
* 1) The GNU Lesser General Public License (LGPL), version 2.1, as
* published by the Free Software Foundation
*
* OR
*
* 2) The Eclipse Public License (EPL), version 1.0
*
* You may choose which license to accept if you wish to redistribute
* or modify this work. You may offer derivatives of this work
* under the license you have chosen, or you may provide the same
* choice of license which you have been offered here.
*
* 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.
*
* You should have received copies of both LGPL v2.1 and EPL v1.0
* along with this software; see the files LICENSE-EPL and LICENSE-LGPL.
* If not, the text of these licenses are currently available at
*
* LGPL v2.1: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html
* EPL v1.0: http://www.eclipse.org/org/documents/epl-v10.php
*
*/
package com.mchange.v1.cachedstore;
import java.util.Collections;
import java.util.Iterator;
import com.mchange.v1.util.IteratorUtils;
class NoCacheCachedStore implements TweakableCachedStore
{
CachedStore.Manager mgr;
NoCacheCachedStore(CachedStore.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 Object getCachedValue(Object key)
{ return null; }
public void removeFromCache(Object key)
{}
public void setCachedValue(Object key, Object value)
{}
public Iterator cachedKeys()
{ return IteratorUtils.EMPTY_ITERATOR; }
}