mirror of git://gcc.gnu.org/git/gcc.git
77 lines
3.0 KiB
Java
77 lines
3.0 KiB
Java
/* Cloneable.java -- Interface for marking objects cloneable by Object.clone()
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Copyright (C) 1998, 1999, 2001 Free Software Foundation, Inc.
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This file is part of GNU Classpath.
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GNU Classpath is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2, or (at your option)
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any later version.
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GNU Classpath is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with GNU Classpath; see the file COPYING. If not, write to the
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Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
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02111-1307 USA.
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As a special exception, if you link this library with other files to
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produce an executable, this library does not by itself cause the
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resulting executable to be covered by the GNU General Public License.
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This exception does not however invalidate any other reasons why the
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executable file might be covered by the GNU General Public License. */
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package java.lang;
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/* Written using "Java Class Libraries", 2nd edition, ISBN 0-201-31002-3
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* "The Java Language Specification", ISBN 0-201-63451-1
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* plus online API docs for JDK 1.2 beta from http://www.javasoft.com.
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* Status: Believed complete and correct.
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*/
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/**
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* This interface should be implemented by classes wishing to
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* support of override <code>Object.clone()</code>. The default
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* behaviour of <code>clone()</code> performs a shallow copy, but
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* subclasses often change this to perform a deep copy. Therefore,
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* it is a good idea to document how deep your clone will go.
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* If <code>clone()</code> is called on an object which does not
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* implement this interface, a <code>CloneNotSupportedException</code>
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* will be thrown.
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* <p>
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*
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* This interface is simply a tagging interface; it carries no
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* requirements on methods to implement. However, it is typical for
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* a Cloneable class to implement at least <code>equals</code>,
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* <code>hashCode</code>, and <code>clone</code>, sometimes
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* increasing the accessibility of clone to be public. The typical
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* implementation of <code>clone</code> invokes <code>super.clone()</code>
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* rather than a constructor, but this is not a requirement.
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* <p>
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*
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* If an object that implement Cloneable should not be cloned,
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* simply override the <code>clone</code> method to throw a
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* <code>CloneNotSupportedException</code>.
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* <p>
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*
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* All array types implement Cloneable, and have a public
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* <code>clone</code> method that will never fail with a
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* <code>CloneNotSupportedException</code>.
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*
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* @since 1.0
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* @author Paul Fisher
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* @author Eric Blake <ebb9@email.byu.edu>
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* @author Warren Levy <warrenl@cygnus.com>
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*
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* @see Object#clone()
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* @see CloneNotSupportedException
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*/
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public interface Cloneable
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{
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// Tagging interface only.
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}
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