org.apache.hadoop.classification.InterfaceAudience Maven / Gradle / Ivy
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* Licensed to the Apache Software Foundation (ASF) under one
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* to you 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,
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*/
package org.apache.hadoop.classification;
import java.lang.annotation.Documented;
/**
* Annotation to inform users of a package, class or method's intended audience.
*/
@InterfaceAudience.Public
@InterfaceStability.Evolving
public class InterfaceAudience {
/**
* Intended for use by any project or application.
*/
@Documented public @interface Public {};
/**
* Intended only for the project(s) specified in the annotation.
* For example, "Common", "HDFS", "MapReduce", "ZooKeeper", "HBase".
*/
@Documented public @interface LimitedPrivate {
String[] value();
};
/**
* Intended for use only within Hadoop itself.
*/
@Documented public @interface Private {};
private InterfaceAudience() {} // Audience can't exist on its own
}