package com.dbxml.db.core.query.plan.logical;

/*
 * dbXML - Native XML Database
 * Copyright (C) 1999-2004  The dbXML Group, L.L.C.
 *
 * 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.
 *
 * $Id: Operator.java,v 1.3 2004/02/12 00:17:57 bradford Exp $
 */

import com.dbxml.db.core.indexer.IndexQuery;

/**
 * Operator
 */

public final class Operator extends LogicalQueryNode {
   private static final int OP_EQ = IndexQuery.EQ;
   private static final int OP_GT = IndexQuery.GT;
   private static final int OP_GTE = IndexQuery.GTE;
   private static final int OP_IN = IndexQuery.IN;
   private static final int OP_LT = IndexQuery.LT;
   private static final int OP_LTE = IndexQuery.LTE;
   private static final int OP_NEQ = IndexQuery.NEQ;
   private static final int OP_NIN = IndexQuery.NIN;
   private static final int OP_NSW = IndexQuery.NSW;
   private static final int OP_SW = IndexQuery.SW;

   public static final Operator EQ = new Operator(OP_EQ);
   public static final Operator GT = new Operator(OP_GT);
   public static final Operator GTE = new Operator(OP_GTE);
   public static final Operator IN = new Operator(OP_IN);
   public static final Operator LT = new Operator(OP_LT);
   public static final Operator LTE = new Operator(OP_LTE);
   public static final Operator NEQ = new Operator(OP_NEQ);
   public static final Operator NIN = new Operator(OP_NIN);
   public static final Operator NSW = new Operator(OP_NSW);
   public static final Operator SW = new Operator(OP_SW);

   private int op;

   private Operator(int op) {
      this.op = op;
   }
}
