// -*- Mode: C++ -*-//          BT.h//// Copyright (c) 1996, Regents of the University of California// $Header: /usr/local/devel/GiST/libGiST/BTree/BT.h,v 1.1.1.1 1996/08/06 23:47:18 jmh Exp $#ifndef BT_H#define BT_H#include "GiST.h"#include "GiSTdb.h"#include "BTentry.h"#include "BTnode.h"#include "BTpredicate.h"class BT : public GiST{public:  // optional, for debugging support  GiSTobjid IsA() { return BT_CLASS; }  BT(dbDatabase& aDb) : db(aDb) {} protected:  // Required members  GiSTnode  *CreateNode()  const { return new BTnode; }  GiSTstore *CreateStore() const { return new GiSTdb(db); }  // set special property  int  IsOrdered()    const { return 1; }  dbDatabase& db;};#endif