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The Java Transaction SPI classes

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/*
  * JBoss, Home of Professional Open Source
  * Copyright 2005, JBoss Inc., and individual contributors as indicated
  * by the @authors tag. See the copyright.txt 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.tm;

import javax.transaction.Transaction;


/**
 *  Implementations of this interface are used for getting
 *  a transaction propagation context at the client-side.
 *  We need a specific implementation of this interface for
 *  each kind of DTM we are going to interoperate with. (So
 *  we may have 20 new classes if we are going to interoperate
 *  with 20 different kinds of distributed transaction
 *  managers.)
 *  The reason for having the methods in this interface return
 *  Object is that we do not really know what kind of transaction
 *  propagation context is returned.
 *
 *  @see TransactionPropagationContextImporter
 *  @author Ole Husgaard
 *  @author [email protected]
 *  @version $Revision: 37459 $
 */
@Deprecated
public interface TransactionPropagationContextFactory
{
   /**
    *  Return a transaction propagation context for the transaction
    *  currently associated with the invoking thread, or null
    *  if the invoking thread is not associated with a transaction.
    *  
    *  @return the context
    */
   public Object getTransactionPropagationContext();

   /**
    *  Return a transaction propagation context for the transaction
    *  given as an argument, or null
    *  if the argument is null or of a type unknown to
    *  this factory.
    *  
    *  @param tx the transaction
    *  @return the context
    */
   public Object getTransactionPropagationContext(Transaction tx);

}