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/*
* Copyright (c) 2007 Sun Microsystems, Inc. All rights reserved.
*
* Sun Microsystems, Inc. has intellectual property rights relating to technology embodied in the product
* that is described in this document. In particular, and without limitation, these intellectual property
* rights may include one or more of the U.S. patents listed at http://www.sun.com/patents and one or
* more additional patents or pending patent applications in the U.S. and in other countries.
*
* U.S. Government Rights - Commercial software. Government users are subject to the Sun
* Microsystems, Inc. standard license agreement and applicable provisions of the FAR and its
* supplements.
*
* Use is subject to license terms. Sun, Sun Microsystems, the Sun logo, Java and Solaris are trademarks or
* registered trademarks of Sun Microsystems, Inc. in the U.S. and other countries. All SPARC trademarks
* are used under license and are trademarks or registered trademarks of SPARC International, Inc. in the
* U.S. and other countries.
*
* UNIX is a registered trademark in the U.S. and other countries, exclusively licensed through X/Open
* Company, Ltd.
*/
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
*
* @author Bernd Mathiske
*/
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();
}