Mercurial > hg > truffle
view graal/com.oracle.max.base/src/com/sun/max/util/Enumerable.java @ 3733:e233f5660da4
Added Java files from Maxine project.
author | Thomas Wuerthinger <thomas.wuerthinger@oracle.com> |
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date | Sat, 17 Dec 2011 19:59:18 +0100 |
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/* * Copyright (c) 2007, 2011, Oracle and/or its affiliates. All rights reserved. * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * * This code is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License version 2 only, as * published by the Free Software Foundation. * * This code 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 * version 2 for more details (a copy is included in the LICENSE file that * accompanied this code). * * You should have received a copy of the GNU General Public License version * 2 along with this work; if not, write to the Free Software Foundation, * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. * * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA * or visit www.oracle.com if you need additional information or have any * questions. */ package com.sun.max.util; /** * Java enums are insufficient in that their ordinals have to be successive. * An Enumerable has an additional arbitrary int "value", * which may incur gaps between ordinal-successive Enumerables. * <p> * An Enumerator can be called upon to provide the respective Enumerable matching a given value. * <p> * See <a href="http://www.ejournal.unam.mx/cys/vol07-02/CYS07205.pdf">"Inheritance, Generics and Binary Methods in Java"</a> * for an explanation of how to interpret a recursive generic type. * <p> * * @see Enumerator */ public interface Enumerable<E extends Enum<E> & Enumerable<E>> extends Symbol { // We are merely declaring this method to lock in the same parameter type for the corresponding enumerator, // not for any actual use Enumerator<E> enumerator(); }