code: /***************************************************************************
   *   Copyright (C) 2011 by Fabrizio Montesi <famontesi@gmail.com>          *
   *                                                                         *
   *   This program is free software; you can redistribute it and/or modify  *
   *   it under the terms of the GNU Library General Public License as       *
   *   published by the Free Software Foundation; either version 2 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 General Public License for more details.                          *
   *                                                                         *
   *   You should have received a copy of the GNU Library General Public     *
   *   License along with this program; if not, write to the                 *
   *   Free Software Foundation, Inc.,                                       *
   *   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
   *                                                                         *
   *   For details about the authors of this software, see the AUTHORS file. *
   ***************************************************************************/
  
  package jolie.runtime.correlation;
  
  import java.util.List;
  import java.util.Set;
  import jolie.runtime.VariablePath;
  import jolie.util.MultiMap;
  
  /**
   *
   * @author Fabrizio Montesi
   */
  public class CorrelationSet
  {
  	public static class CorrelationPair
  	{
  		private final VariablePath sessionPath;
  		private final VariablePath messagePath;
  
  		public CorrelationPair( VariablePath sessionPath, VariablePath messagePath )
  		{
  			this.sessionPath = sessionPath;
  			this.messagePath = messagePath;
  		}
  
  		public VariablePath sessionPath()
  		{
  			return sessionPath;
  		}
  
  		public VariablePath messagePath()
  		{
  			return messagePath;
  		}
  	}
  
  	// Maps operation names to their correlation pairs.
  	private final MultiMap< String, CorrelationPair > correlationMap;
  	private final List< VariablePath > correlationVariablePaths;
  
  	public CorrelationSet( List< VariablePath > correlationVariablePaths, MultiMap< String, CorrelationPair > correlationMap )
  	{
  		this.correlationMap = correlationMap;
  		this.correlationVariablePaths = correlationVariablePaths;
  	}
  
  	/**
  	 * Returns the list of {@link CorrelationPair} defined for the operation.
  	 * @param operationName the operation name the list is defined for.
  	 * @return the list of {@link CorrelationPair} defined for the operation, or {@code null} if no such list is defined.
  	 */
  	public List< CorrelationPair > getOperationCorrelationPairs( String operationName )
  	{
  		return (List< CorrelationPair >)correlationMap.get( operationName );
  	}
  
  	public List< VariablePath > correlationVariablePaths()
  	{
  		return correlationVariablePaths;
  	}
  
  	public Set< String > correlatingOperations()
  	{
  		return correlationMap.keySet();
  	}
  }
  