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      1 /*
      2  * Copyright (C) 2017 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 com.android.server.backup.utils;
     18 
     19 import java.io.DataInputStream;
     20 import java.io.DataOutputStream;
     21 import java.io.IOException;
     22 
     23 /**
     24  * Implements how to serialize a {@code T} to a {@link DataOutputStream} and how to deserialize a
     25  * {@code T} from a {@link DataInputStream}.
     26  *
     27  * @param <T> Type of object to be serialized / deserialized.
     28  */
     29 public interface DataStreamCodec<T> {
     30     /**
     31      * Serializes {@code t} to {@code dataOutputStream}.
     32      */
     33     void serialize(T t, DataOutputStream dataOutputStream) throws IOException;
     34 
     35     /**
     36      * Deserializes {@code t} from {@code dataInputStream}.
     37      */
     38     T deserialize(DataInputStream dataInputStream) throws IOException;
     39 }
     40 
     41