AsymmetricCompareTo.java

// @(#)$Id: AsymmetricCompareTo.java,v 1.6 2005/07/07 21:03:09 leavens Exp $

// Copyright (C) 2005 Iowa State University
//
// This file is part of the runtime library of the Java Modeling Language.
//
// 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 2.1,
// 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 JML; see the file LesserGPL.txt.  If not, write to the Free
// Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
// 02110-1301  USA.

package org.jmlspecs.unfinished.resolve;

/** Objects with an asymmetric compareTo operation.
 *
 * @version $Revision: 1.6 $
 * @author Gary T. Leavens
 */
public interface AsymmetricCompareTo extends CompareTo {

    /*@ public instance invariant
      @       (\forall int n;;
      @        (\forall AsymmetricCompareTo x, y;
      @                x != null && y != null;
      @                x.isComparableTo(y) && x.compareTo(y) == n
      @                <==> !(y.isComparableTo(x) && y.compareTo(x) == n)));
      @*/
}