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      */
serialize(T t, DataOutputStream dataOutputStream)33     void serialize(T t, DataOutputStream dataOutputStream) throws IOException;
34 
35     /**
36      * Deserializes {@code t} from {@code dataInputStream}.
37      */
deserialize(DataInputStream dataInputStream)38     T deserialize(DataInputStream dataInputStream) throws IOException;
39 }
40 
41