hadoop VisibleForTesting 源码
haddop VisibleForTesting 代码
文件路径：/hadoop-common-project/hadoop-annotations/src/main/java/org/apache/hadoop/classification/VisibleForTesting.java
/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* 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,
* 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.apache.hadoop.classification;
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;
/**
* Annotates a program element that exists, or is more widely visible than
* otherwise necessary, specifically for use in test code.
* More precisely <i>test code within the hadoop-* modules</i>.
* Moreover, this gives the implicit scope and stability of:
* <pre>
* {@link InterfaceAudience.Private}
* {@link InterfaceStability.Unstable}
* </pre>
* If external modules need to access/override these methods, then
* they MUST be re-scoped as public/limited private.
*/
@Retention(RetentionPolicy.CLASS)
@Target({ ElementType.TYPE, ElementType.METHOD, ElementType.FIELD, ElementType.CONSTRUCTOR })
@Documented
public @interface VisibleForTesting {
}
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