Association.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 OMF_ASSOCIATION_HPP
#define OMF_ASSOCIATION_HPP

// std includes
#include <string>

// OMF includes
#include <OMF/Link.hpp>

namespace OMF
{
  class Association
  {
  protected:
    Association();

    Association &init(const std::string &name);

  public:
    virtual ~Association();

    const std::string &name() const
    { return _name; }

    const LinkSet &links() const
    { return _links; }

    bool exists(ModelObject *end1, ModelObject *end2) const;

    Link *find(ModelObject *end1, ModelObject *end2) const;

    virtual void add(ModelObject *end1, ModelObject *end2)
    {}

    virtual void remove(ModelObject *end1, ModelObject *end2)
    {}

  protected:
    void addLink(Link *link);

    void removeLink(Link *link);

  private:
    std::string   _name;
    LinkSet   _links;
  };
}

#endif

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