1 /*
2  * Copyright 2017, OpenCensus Authors
3  *
4  * Licensed under the Apache License, Version 2.0 (the "License");
5  * you may not use this file except in compliance with the License.
6  * You may obtain a copy of the License at
7  *
8  *     http://www.apache.org/licenses/LICENSE-2.0
9  *
10  * Unless required by applicable law or agreed to in writing, software
11  * distributed under the License is distributed on an "AS IS" BASIS,
12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13  * See the License for the specific language governing permissions and
14  * limitations under the License.
15  */
16 
17 package io.opencensus.common;
18 
19 import java.lang.annotation.Documented;
20 import java.lang.annotation.ElementType;
21 import java.lang.annotation.Retention;
22 import java.lang.annotation.RetentionPolicy;
23 import java.lang.annotation.Target;
24 
25 /**
26  * Annotates a program element (class, method, package etc) which is internal to OpenCensus, not
27  * part of the public API, and should not be used by users of the OpenCensus library.
28  *
29  * @since 0.5
30  */
31 @Internal
32 @Retention(RetentionPolicy.SOURCE)
33 @Target({
34   ElementType.ANNOTATION_TYPE,
35   ElementType.CONSTRUCTOR,
36   ElementType.FIELD,
37   ElementType.METHOD,
38   ElementType.PACKAGE,
39   ElementType.TYPE
40 })
41 @Documented
42 public @interface Internal {}
43