1 /*
2  * Copyright (C) 2014 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.hardware.camera2.impl;
18 
19 /**
20  * Getter interface for use with Command pattern metadata value getters.
21  */
22 public interface GetCommand {
23 
24     /**
25      * Get the value from the given {@link CameraMetadataNative} object.
26      *
27      * @param metadata the {@link CameraMetadataNative} object to get the value from.
28      * @param key the {@link CameraMetadataNative.Key} to look up.
29      * @param <T> the type of the value.
30      * @return the value for a given {@link CameraMetadataNative.Key}.
31      */
getValue(CameraMetadataNative metadata, CameraMetadataNative.Key<T> key)32     public <T> T getValue(CameraMetadataNative metadata, CameraMetadataNative.Key<T> key);
33 }
34