org.neo4j.coreedge.catchup.Protocol Maven / Gradle / Ivy
/*
* Copyright (c) 2002-2016 "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 .
*/
package org.neo4j.coreedge.catchup;
import java.util.Map;
public abstract class Protocol>
{
private E state;
protected Protocol( E initialValue )
{
this.state = initialValue;
}
public void expect( E state )
{
this.state = state;
}
public boolean isExpecting( E state )
{
return this.state == state;
}
public T select( Map map )
{
return map.get( state );
}
@Override
public String toString()
{
return getClass().getSimpleName() + "{" + "state=" + state + '}';
}
}