/**
* Copyright (c) 2002-2012 "Neo Technology,"
* Network Engine for Objects in Lund AB [http://neotechnology.com]
*
* This file is part of Neo4j.
*
* Neo4j is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as
* published by the Free Software Foundation, either version 3 of the
* License, or (at your option) any later version.
*
* This program 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 Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
package org.neo4j.cluster.statemachine;
import java.net.URI;
import org.neo4j.cluster.BindingListener;
/**
* Generate id's for state machine conversations. This should be shared between all state machines in a server.
* <p/>
* These conversation id's can be used to uniquely identify conversations between distributed state machines.
*/
public class StateMachineConversations
implements BindingListener
{
private long nextConversationId = 0;
private String serverId;
public synchronized String getNextConversationId()
{
return serverId + "/" + nextConversationId++;
}
@Override
public void listeningAt( URI me )
{
serverId = me.toString();
}
}