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/home/pauldt/projects/IDEA/IDEA-ALL/IDEA-DEV/Modules/PLASMA/PlanServer/Includes/PlasmaPlanDatabaseListener.hh

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// -*- Mode: C++ -*-
//      CVS: $Id: PlasmaPlanDatabaseListener.hh,v 1.7 2005/12/30 22:42:29 rijsman Exp $
//      Tag: $name$
//     Info: $CVSROOT/IDEA-DEV/COPYRIGHT

#ifndef PLASMA_DATABASE_LISTENER_HEADER_
#define PLASMA_DATABASE_LISTENER_HEADER_

#include "PlanDatabaseListener.hh"
#include "ConstraintEngineListener.hh"

namespace IDEA
{
  using namespace EUROPA;

  class PslDatabase;

  class PlasmaPlanDatabaseListener:
    public PlanDatabaseListener
  {
  public:
    PlasmaPlanDatabaseListener( const PlanDatabaseId& planDatabase, const PslDatabase* database );

    void endBufferActivated();

    void notifyAdded(const ObjectId& object);
    void notifyRemoved(const ObjectId& object);
    void notifyAdded(const TokenId& token);
    void notifyRemoved(const TokenId& token);
    void notifyActivated(const TokenId& token);
    void notifyDeactivated(const TokenId& token);
    void notifyMerged(const TokenId& token);
    void notifySplit(const TokenId& token);
    void notifyRejected(const TokenId& token);
    void notifyReinstated(const TokenId& token);
    void notifyConstrained(const ObjectId& object, const TokenId& predecessor, const TokenId& successor);
    void notifyFreed(const ObjectId& object, const TokenId& predecessor, const TokenId& successor);
    void notifyAdded(const ObjectId& object, const TokenId& token);
    void notifyRemoved(const ObjectId& object, const TokenId& token);

    void startBufferActivated();
  private:
    void handleActivated( const TokenId& token );

    const PslDatabase* m_Database;
    typedef std::set< EUROPA::TokenId > TokenSet;

    TokenSet m_ActivatedBuffer;
    bool m_BufferActivated;
  };

  class PlasmaConstraintEngineListener:
    public ConstraintEngineListener
  {
  public:
    PlasmaConstraintEngineListener(const ConstraintEngineId& constraintEngine, const PslDatabase* database );
    void notifyChanged(const ConstrainedVariableId& variable, const DomainListener::ChangeType& changeType);
    void notifyRemoved(const ConstrainedVariableId& variable);
    
    void startBufferActivated();
    void endBufferActivated();
  protected:
    void handleEvent( const ConstrainedVariableId& variable, const DomainListener::ChangeType& changeType); 
  private:
    const PslDatabase* m_Database;
    bool m_BufferActivated;

    typedef std::pair< ConstrainedVariableId, DomainListener::ChangeType > BufferedEvent;
    typedef std::list< BufferedEvent > BufferedEvents;

    BufferedEvents m_Events;
  };
  
}

#endif // PLASMA_DATABASE_LISTENER_HEADER_

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