1 /*
2  * Copyright (C) 2019 The Android Open Source Project
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 android.car.annotation;
18 
19 import static java.lang.annotation.ElementType.ANNOTATION_TYPE;
20 import static java.lang.annotation.ElementType.FIELD;
21 import static java.lang.annotation.RetentionPolicy.SOURCE;
22 
23 import java.lang.annotation.Retention;
24 import java.lang.annotation.Target;
25 
26 /**
27  * This is for optional features. Features marked with this should be first checked if it is
28  * supported using {@link android.car.Car#isFeatureSupported(featureName)}.
29  *
30  * @hide
31  */
32 @Retention(SOURCE)
33 @Target({ANNOTATION_TYPE, FIELD})
34 public @interface OptionalFeature {
35 }
36