// @(#)$Id: TotalCompareTo.java,v 1.10 2007/02/08 14:05:50 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.models.resolve; /** Objects whose compareTo operation is guaranteed not to throw an * {@link UndefinedException} and only throws a ClassCastException * when the class of the argument prohibits comparison. * * @version $Revision: 1.10 $ * @author Gary T. Leavens */ public interface TotalCompareTo extends ReflexiveCompareTo { /*@ also @ public behavior @ requires obj != null; @ ensures obj instanceof TotalCompareTo; @ signals_only ClassCastException; @ signals (ClassCastException) @ !(obj instanceof TotalCompareTo); @*/ /*@ pure @*/ int compareTo(/*@ non_null @*/ Object obj) throws ClassCastException, NullPointerException; /*@ also @ public model_program { @ try { @ int r = this.compareTo(obj); @ } catch (ClassCastException e) { @ return false; @ } @ return true; @ } @*/ //@ pure model boolean isComparableTo(Object obj); }