Transition.hpp

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/*
 * Copyright (C) 2004  Andrew Sutton
 *
 * This library 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 library 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 library; if not, write to:
 *
 * The Free Software Foundation, Inc.
 * 59 Temple Place, Suite 330
 * Boston, MA  02111-1307  USA
 *
 * Contact:
 *   Andrew Sutton  asutton@cs.kent.edu
 */

#ifndef UML_TRANSITION_HPP
#define UML_TRANSITION_HPP

#include <UML/ModelElement.hpp>

namespace UML
{
  // forward declarations
  class Transition;
  class TransitionImpl;
  class Guard;
  class Action;
  class Event;
  class StateVertex;
  class StateVertex;
  class StateMachine;

  class Transition : virtual public UML::ModelElement
  {
  public:
    typedef OMF::BasicClass<TransitionImpl> Proxy;

    Transition();
    virtual ~Transition();

    Guard *guard();
    void setGuard(Guard *value);
    void clearGuard();

    Action *effect();
    void setEffect(Action *value);
    void clearEffect();

    Event *trigger();
    void setTrigger(Event *value);
    void clearTrigger();

    StateVertex *source();
    void setSource(StateVertex *value);
    void clearSource();

    StateVertex *target();
    void setTarget(StateVertex *value);
    void clearTarget();

    StateMachine *stateMachine();
    void setStateMachine(StateMachine *value);
    void clearStateMachine();

  private:
    Guard *_guard;
    Action *_effect;
    Event *_trigger;
    StateVertex *_source;
    StateVertex *_target;
    StateMachine *_stateMachine;
  };


  struct TransitionImpl : virtual public UML::Transition
  {
    TransitionImpl() : 
      OMF::ModelObject(
          "UML.Transition",
          &Transition::Proxy::instance(),
          &UMLPackage::instance()),
      Element(),
      ModelElement(),
      Transition()
    {}

    virtual ~TransitionImpl()
    {}
  };
}

#endif

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