/*
* ModeShape (http://www.modeshape.org)
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.modeshape.schematic.annotation;
import java.lang.annotation.Documented;
import java.lang.annotation.ElementType;
import java.lang.annotation.Retention;
import java.lang.annotation.RetentionPolicy;
import java.lang.annotation.Target;
/**
* Copyright (c) 2005 Brian Goetz and Tim Peierls.<br />
* Released under the Creative Commons Attribution License<br />
* (http://creativecommons.org/licenses/by/2.5)<br />
* Official home: http://www.jcip.net<br />
* Adopted from Java Concurrency in Practice.
* <p>
* This annotation documents that instances of the annotated class are immutable. This means that its state is seen to others as
* never being changed, even though the actual private internal state may indeed change. Therefore, in an immutable class:
* <ul>
* <li>all public fields are final; and</li>
* <li>all public final reference fields refer to other immutable objects; and</li>
* <li>constructors and methods do not publish references to any internal state which is potentially mutable by the
* implementation.</li>
* </ul>
* </p>
*/
@Documented
@Target( ElementType.TYPE )
@Retention( RetentionPolicy.RUNTIME )
public @interface Immutable {
}