/*
 * @(#) Immutable.java - Tagging interface for immutable objects.
 * (c) 2000 Ivan Maidanski <ivmai@chat.ru> http://ivmai.chat.ru
 * Freeware class library sources. All rights reserved.
 **
 * Language: Java [pure]
 * Tested with: JDK v1.1.6
 * Last modified: 2000-12-24 19:30:00 GMT+03:00
 */

/*
 * This software is the proprietary information of the author.
 **
 * Permission to use, copy, and distribute this software and its
 * documentation for non-commercial purposes and without fee is
 * hereby granted provided that this copyright notice appears in all
 * copies.
 **
 * This software should not be modified in any way; any found bug
 * should be reported to the author.
 **
 * The author disclaims all warranties with regard to this software,
 * including all implied warranties of merchantability and fitness.
 * In no event shall the author be liable for any special, indirect
 * or consequential damages or any damages whatsoever resulting from
 * loss of use, data or profits, whether in an action of contract,
 * negligence or other tortuous action, arising out of or in
 * connection with the use or performance of this software.
 */

package ivmai.util;

/**
 * Tagging interface for immutable objects.
 **
 * This interface should be implemented by a custom class which
 * instances have constant (immutable) internal state. This
 * interface has no methods or fields and serves only to identify
 * the semantics of being immutable. Here are some important notes
 * for developers of the classes for immutable objects: such classes
 * should be declared as <CODE>final</CODE> and should not extend
 * any other classes; they must not have any methods for changing
 * state of <CODE>this</CODE> object; all their variable fields must
 * never be changed even indirectly (all the fields should be
 * <CODE>final</CODE>); methods synchronization is not needed.
 **
 * @see ReallyCloneable
 * @see ConstVector
 * @see UnsignedInt
 * @see GComparator
 **
 * @version 2.0
 * @author Ivan Maidanski
 **
 * @since 2.0
 */
public interface Immutable
{
}