/**
* ================================================
* LibLoader : a free Java resource loading library
* ================================================
*
* Project Info: http://reporting.pentaho.org/libloader/
*
* (C) Copyright 2006-2008, by Pentaho Corporation and Contributors.
*
* This library 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 2.1 of the License, or (at your option) any later version.
*
* This library 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.
*
* [Java is a trademark or registered trademark of Sun Microsystems, Inc.
* in the United States and other countries.]
*
*
* ------------
* NullResourceBundleDataCache.java
* ------------
*/
package org.pentaho.reporting.libraries.resourceloader.cache;
import org.pentaho.reporting.libraries.resourceloader.ResourceBundleData;
import org.pentaho.reporting.libraries.resourceloader.ResourceKey;
import org.pentaho.reporting.libraries.resourceloader.ResourceLoadingException;
import org.pentaho.reporting.libraries.resourceloader.ResourceManager;
/**
* Disables caching. It simply returns null on every request and ignores
* the put requests. You certainly want to use one of the other cache
* providers in real world applications.
* @author Thomas Morgner
*/
public class NullResourceBundleDataCache implements ResourceBundleDataCache
{
private Object lastEntry;
public NullResourceBundleDataCache()
{
}
public ResourceBundleData put(final ResourceManager caller, final ResourceBundleData data) throws ResourceLoadingException
{
final ResourceBundleData retval = CachingResourceBundleData.createCached(data);
lastEntry = new DefaultResourceBundleDataCacheEntry(retval, caller);
return retval;
}
public ResourceBundleDataCacheEntry get(final ResourceKey key)
{
if (lastEntry != null)
{
final ResourceBundleDataCacheEntry entry = (ResourceBundleDataCacheEntry) lastEntry;
if (key.equals(entry.getData().getBundleKey()))
{
return entry;
}
lastEntry = null;
}
return null;
}
public void remove(final ResourceBundleData data)
{
}
public void clear()
{
lastEntry = null;
}
public void shutdown()
{
lastEntry = null;
}
}