/*
* Copyright (C) 2012 eXo Platform SAS.
*
* 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.exoplatform.services.jcr.impl.dataflow.persistent;
/**
* Accumulates data size changes at persisted level. It is used to tracks
* node data size changes.
*
* @author <a href="abazko@exoplatform.com">Anatoliy Bazko</a>
* @version $Id: ContentSizeHandler.java 34360 2009-07-22 23:58:59Z tolusha $
*/
public interface ChangedSizeHandler
{
/**
* Returns difference between new and previous content sizes.
*/
long getChangedSize();
/**
* Returns new content size.
*/
long getNewSize();
/**
* Returns previous content size.
*/
long getPrevSize();
/**
* Accumulates size of content to be written into storage.
*/
void accumulateNewSize(long deltaSize);
/**
* Accumulates size of content already existed into storage to be replaced.
*/
void accumulatePrevSize(long deltaSize);
}