IteratorBE.h

/* 
   EyeDB Object Database Management System
   Copyright (C) 1994-2008 SYSRA
   
   EyeDB 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.
   
   EyeDB 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., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA 
*/

/*
   Author: Eric Viara <viara@sysra.com>
*/


#ifndef _EYEDB_ITERATOR_BE_H
#define _EYEDB_ITERATOR_BE_H

namespace eyedb {

  class IteratorBEEngine;
  class CollectionBE;
  class SchemaInfo;

  class IteratorBE {
    Status status;
    int qid;
    IteratorBEEngine *qiter;
    CollectionBE *collbe;
    Bool sch_changed;
    SchemaInfo *schinfo;

  public:
    IteratorBE(Database *);
    IteratorBE(CollectionBE *, Bool index);

    IteratorBE(Database *, const Attribute *, int,
               Data, Data, Bool, Bool, int);

    Status getStatus() const;
    Status scanNext(int, int *found, IteratorAtom *);
    int getQid() const;
    Bool getSchemaChanged() const {return sch_changed;}

    SchemaInfo *getSchemaInfo();

    static LinkedList *getMclList() {
      return def_cl_list;
    }

    static void setMclList(LinkedList *cl_list) {
      def_cl_list = cl_list;
    }

    ~IteratorBE();

  private:
    static LinkedList *def_cl_list;
  };
}

#endif

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