MatchExpression.hpp

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/* 
 * MatchExpression.hpp 
 *
 * This file is part of the Chemical Data Processing Toolkit
 *
 * Copyright (C) 2003 Thomas Seidel <thomas.seidel@univie.ac.at>
 *
 * 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 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; see the file COPYING. If not, write to
 * the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
 * Boston, MA 02111-1307, USA.
 */
 
#ifndef CDPL_CHEM_MATCHEXPRESSION_HPP
#define CDPL_CHEM_MATCHEXPRESSION_HPP
 
#include <memory>
 
 
namespace CDPL
{
 
    namespace Base
    {
 
        class Any;
    }
 
    namespace Chem
    {
 
        class AtomBondMapping;
 
        template <typename ObjType1, typename ObjType2 = void>
        class MatchExpression
        {
 
          public:
            typedef std::shared_ptr<MatchExpression> SharedPointer;
 
            virtual ~MatchExpression() {}
 
            virtual bool operator()(const ObjType1& query_obj1, const ObjType2& query_obj2, const ObjType1& target_obj1, const ObjType2& target_obj2,
                                    const Base::Any& aux_data) const;
 
            virtual bool operator()(const ObjType1& query_obj1, const ObjType2& query_obj2, const ObjType1& target_obj1, const ObjType2& target_obj2,
                                    const AtomBondMapping& mapping, const Base::Any& aux_data) const;
 
            virtual bool requiresAtomBondMapping() const;
        };
 
        template <typename ObjType>
        class MatchExpression<ObjType, void>
        {
 
          public:
            typedef std::shared_ptr<MatchExpression> SharedPointer;
 
            virtual ~MatchExpression() {}
 
            virtual bool operator()(const ObjType& query_obj, const ObjType& target_obj, const Base::Any& aux_data) const;
 
            virtual bool operator()(const ObjType& query_obj, const ObjType& target_obj, const AtomBondMapping& mapping, const Base::Any& aux_data) const;
 
            virtual bool requiresAtomBondMapping() const;
        };
    } // namespace Chem
} // namespace CDPL
 
 
// Implementation
 
template <typename ObjType1, typename ObjType2>
bool CDPL::Chem::MatchExpression<ObjType1, ObjType2>::operator()(const ObjType1&, const ObjType2&,
                                                                 const ObjType1&, const ObjType2&,
                                                                 const Base::Any&) const
{
    return true;
}
 
template <typename ObjType1, typename ObjType2>
bool CDPL::Chem::MatchExpression<ObjType1, ObjType2>::operator()(const ObjType1& query_obj1, const ObjType2& query_obj2,
                                                                 const ObjType1& target_obj1, const ObjType2& target_obj2,
                                                                 const AtomBondMapping&, const Base::Any&     data) const
{
    return operator()(query_obj1, query_obj2, target_obj1, target_obj2, data);
}
 
template <typename ObjType1, typename ObjType2>
bool CDPL::Chem::MatchExpression<ObjType1, ObjType2>::requiresAtomBondMapping() const
{
    return false;
}
 
 
template <typename ObjType>
bool CDPL::Chem::MatchExpression<ObjType, void>::operator()(const ObjType&, const ObjType&,
                                                            const Base::Any&) const
{
    return true;
}
 
template <typename ObjType>
bool CDPL::Chem::MatchExpression<ObjType, void>::operator()(const ObjType& query_obj, const ObjType& target_obj,
                                                            const AtomBondMapping&, const Base::Any& data) const
{
    return operator()(query_obj, target_obj, data);
}
 
template <typename ObjType1>
bool CDPL::Chem::MatchExpression<ObjType1, void>::requiresAtomBondMapping() const
{
    return false;
}
 
#endif // CDPL_CHEM_MATCHEXPRESSION_HPP