/* Copyright (C) 2003 MySQL AB

   This program is free software; you can redistribute it and/or modify
   it under the terms of the GNU 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 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 */

#ifndef KEY_TABLE2_REF_HPP
#define KEY_TABLE2_REF_HPP

#include "KeyTable2.hpp"

/**
 * KeyTable2 is DLHashTable2 with hardcoded Uint32 key named "key".
 */
template <class T, class U, class V>
class KeyTable2Ref
{
  KeyTable2<U, V>& m_ref;
public:
  KeyTable2Ref(KeyTable2<U, V>& ref) :m_ref(ref) {}
  
  bool find(Ptr<T>& ptr, Uint32 key) const {
    U rec;
    rec.key = key;
    return m_ref.find(*(Ptr<U>*)&ptr, rec);
  }
  
  bool seize(Ptr<T> & ptr) {
    return m_ref.seize(*(Ptr<U>*)&ptr);
  }
  
  void add(Ptr<T> & ptr) {
    m_ref.add(*(Ptr<U>*)&ptr);
  }
  
  void release(Ptr<T> & ptr) {
    m_ref.release(*(Ptr<U>*)&ptr);
  }
};

#endif
