/*
* JBoss, Home of Professional Open Source
* Copyright 2005, JBoss Inc., and individual contributors as indicated
* by the @authors tag. See the copyright.txt in the distribution for a
* full listing of individual contributors.
*
* This 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 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; if not, write to the Free
* Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
* 02110-1301 USA, or see the FSF site: http://www.fsf.org.
*/
package org.jboss.repository.plugins;
import org.jboss.repository.spi.MetaDataCombiner;
import org.jboss.repository.spi.Key;
import org.jboss.repository.spi.MetaData;
/**
@author Scott.Stark@jboss.org
@version $Revision: 41119 $
*/
public class KeyMetaDataCombiner
implements MetaDataCombiner
{
private MetaDataCombiner next;
public KeyMetaDataCombiner()
{
this(null);
}
public KeyMetaDataCombiner(MetaDataCombiner next)
{
this.next = next;
}
public MetaDataCombiner getNext()
{
return next;
}
public void setNext(MetaDataCombiner next)
{
this.next = next;
}
/**
Go through the
@param attributeLevels
@param data
@return
*/
public Object combine(Key key, MetaData[] levelData)
{
int level = key.getLevel();
MetaData metadata = levelData[level];
Object value = null;
if( metadata != null )
value = metadata.getData();
if( next != null )
value = next.combine(key, levelData);
return value;
}
}