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  /*
   * JBoss, Home of Professional Open Source
   * Copyright 2006, Red Hat Middleware LLC, and individual contributors
   * as indicated by the @author tags. 
   * See the copyright.txt in the distribution for a full listing 
   * of individual contributors.
   * This copyrighted material is made available to anyone wishing to use,
   * modify, copy, or redistribute it subject to the terms and conditions
   * of the GNU Lesser General Public License, v. 2.1.
  * This program is distributed in the hope that it will be useful, but WITHOUT A
  * 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,
  * v.2.1 along with this distribution; if not, write to the Free Software
  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
  * MA  02110-1301, USA.
  * 
  * (C) 2005-2006,
  * @author JBoss Inc.
  */
 /*
  * Copyright (C) 2002,
  *
  * Arjuna Technologies Limited,
  * Newcastle upon Tyne,
  * Tyne and Wear,
  * UK.
  *
  * $Id: Participant.java,v 1.4 2005/05/19 12:13:24 nmcl Exp $
  */
 
 package com.arjuna.mw.wscf.model.sagas.participants;
 
 
 
This is the interface that all two-phase aware participants must define.

Author(s):
Mark Little (mark.little@arjuna.com)
Version:
$Id: Participant.java,v 1.4 2005/05/19 12:13:24 nmcl Exp $
Since:
1.0.
 
 
 public interface Participant
 {

    
Confirm the participant at top-level.

Throws:
com.arjuna.mw.wscf.exceptions.InvalidParticipantException Thrown if the participant identity is invalid (e.g., refers to an unknown participant.)
com.arjuna.mw.wsas.exceptions.WrongStateException Thrown if the state of the participant is such that it cannot confirm.
com.arjuna.mw.wsas.exceptions.SystemException Thrown if some other error occurred.
 
 
     public void close () throws InvalidParticipantExceptionWrongStateExceptionSystemException;

    
Cancel the participant at top-level.

Throws:
com.arjuna.mw.wscf.exceptions.InvalidParticipantException Thrown if the participant identity is invalid (e.g., refers to an unknown participant.)
com.arjuna.mw.wsas.exceptions.WrongStateException Thrown if the state of the participant is such that it cannot cancel.
com.arjuna.mw.wsas.exceptions.SystemException Thrown if some other error occurred.
 
 
     public void cancel () throws InvalidParticipantExceptionWrongStateExceptionSystemException;

    
Compensate the participant.

Throws:
com.arjuna.mw.wscf.exceptions.InvalidParticipantException Thrown if the participant identity is invalid (e.g., refers to an unknown participant.)
com.arjuna.mw.wsas.exceptions.WrongStateException Thrown if the state of the participant is such that it cannot cancel.
com.arjuna.mw.wsas.exceptions.SystemException Thrown if some other error occurred.
 
 
Inform the participant that is can forget the heuristic result.

Throws:
com.arjuna.mw.wscf.exceptions.InvalidParticipantException Thrown if the participant identity is invalid.
com.arjuna.mw.wsas.exceptions.WrongStateException Thrown if the participant is in an invalid state.
com.arjuna.mw.wsas.exceptions.SystemException Thrown in the event of a general fault.
 
 
 
    public String id () throws SystemException;
    
    public boolean save_state (OutputObjectState os);
    public boolean restore_state (InputObjectState os);
    
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