Immutable.java

/*
 * Copyright 2014 dc-square GmbH
 *
 * 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 com.hivemq.spi.annotations;

import java.lang.annotation.Documented;
import java.lang.annotation.Retention;
import java.lang.annotation.Target;

import static java.lang.annotation.ElementType.*;
import static java.lang.annotation.RetentionPolicy.SOURCE;

/**
 * A marker annotation interface which marks a class as immutable.
 * <p/>
 * Convenient method to document the intended immutability of a class.
 *
 * @author Dominik Obermaier
 * @since 2.1
 */
@Documented
@Retention(SOURCE)
@Target({METHOD, ANNOTATION_TYPE, TYPE, PACKAGE})
public @interface Immutable {
}