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   * JBoss, Home of Professional Open Source
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  * 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:,v 1.2 2005/05/19 12:13:20 nmcl Exp $
This interface defines the operations that implementations of coordination protocols must provide. The basic interface does not imply any specific coordination protocol.

Mark Little (
$Id:,v 1.2 2005/05/19 12:13:20 nmcl Exp $
 public interface UserCoordinatorService


the status of the current coordinator. If there is no activity associated with the thread then NoActivity will be returned.
Throws: Thrown if any error occurs.
See also:
     public status () throws SystemException;

If the application requires and if the coordination protocol supports it, then this method can be used to execute a coordination protocol on the currently enlisted participants at any time prior to the termination of the coordination scope.

cs The completion status to use when determining how to execute the protocol.
The result of executing the protocol, or null.
Throws: Thrown if the coordinator is in a state the does not allow coordination to occur. Thrown if the protocol is violated in some manner during execution. Thrown if any other error occurs.

the complete list of qualifiers that have been registered with the current coordinator.
Throws: Thrown if any error occurs.
     public Qualifier[] qualifiers () throws NoCoordinatorExceptionSystemException;


The unique identity of the current coordinator.
Throws: Thrown if any error occurs.
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