/*
* JBoss, Home of Professional Open Source.
* Copyright 2008, Red Hat Middleware LLC, and individual contributors
* as indicated by the @author tags. See the copyright.txt file 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.ejb.plugins.lock;
import java.io.Serializable;
import java.io.ObjectStreamException;
/**
* This type safe enumeration s used to mark an invocation as non-entrant.
*
* @author <a href="mailto:dain@daingroup.com">Dain Sundstrom</a>
* @version $Revision: 81030 $
*/
public final class Entrancy implements Serializable
{
public static final Entrancy ENTRANT = new Entrancy(true);
public static final Entrancy NON_ENTRANT = new Entrancy(false);
private final transient boolean value;
private Entrancy(boolean value)
{
this.value = value;
}
public String toString()
{
if(value)
{
return "ENTRANT";
} else
{
return "NON_ENTRANT";
}
}
Object readResolve() throws ObjectStreamException
{
if(value)
{
return ENTRANT;
} else
{
return NON_ENTRANT;
}
}
}