/*
* 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.ha.hasessionstate.interfaces;


import java.io.Serializable;

/**
 *   Information about a session that is shared by nodes in a same sub-partition
 *
 *   @see HASessionState, PackagedSessionImpl
 *   @author sacha.labourey@cogito-info.ch
 *   @version $Revision$
 *
 * <p><b>Revisions:</b><br>
 */

public interface PackagedSession extends Serializable
{
   /** The serialVersionUID
    * @since 1.2
    */ 
   static final long serialVersionUID = 689622988452110553L;
   /*
    * Stored state
    */
   public byte[] getState ();
   public boolean setState (byte[] state);
   
   /*
    * Stored state
    */   
   public boolean isStateIdentical (byte[] state);
   
   /*
    * Update the state and content of this PackagedSession from the content of another
    * PackagedSession.
    */
   public void update (PackagedSession clone);
   
   /*
    * Owner node of the state
    */
   public String getOwner ();
   public void setOwner (String owner);
   
   /*
    * Version number of this state
    */
   public long getVersion ();
   
   /*
    * Key identifier associated with this state
    */
   public Serializable getKey ();
   public void setKey (Serializable key);
   
   /*
    * Number of miliseconds since when this state has not been modified in this VM
    */
   public long unmodifiedExistenceInVM ();
}
