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      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 package android.hardware.camera2.impl;
     17 
     18 import java.lang.annotation.ElementType;
     19 import java.lang.annotation.Retention;
     20 import java.lang.annotation.RetentionPolicy;
     21 import java.lang.annotation.Target;
     22 
     23 /**
     24  * Denote a static field {@code Key} as being synthetic (i.e. not having a native
     25  * tag one-to-one counterpart).
     26  *
     27  * <p>Keys without this annotated are assumed to always have a native counter-part.</p>
     28  *
     29  * <p>In particular a key with a native counter-part will always have it's {@code #getTag}
     30  * method succeed.</p>
     31  */
     32 @Retention(RetentionPolicy.RUNTIME)
     33 @Target(ElementType.FIELD)
     34 public @interface SyntheticKey {
     35 
     36 }
     37