1 /*
2  * Copyright (C) 2017 The Android Open Source Project
3  *
4  * Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file
5  * except in compliance with the License. You may obtain a copy of the License at
6  *
7  *      http://www.apache.org/licenses/LICENSE-2.0
8  *
9  * Unless required by applicable law or agreed to in writing, software distributed under the
10  * License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
11  * KIND, either express or implied. See the License for the specific language governing
12  * permissions and limitations under the License.
13  */
14 
15 package com.android.systemui.plugins.annotations;
16 
17 import java.lang.annotation.Retention;
18 import java.lang.annotation.RetentionPolicy;
19 
20 /**
21  * Should be added to all interfaces in plugin lib to specify their
22  * current version and optionally their action to implement the plugin.
23  */
24 @Retention(RetentionPolicy.RUNTIME)
25 public @interface ProvidesInterface {
version()26     int version();
27 
action()28     String action() default "";
29 
30 }
31