Classes in this File | Line Coverage | Branch Coverage | Complexity | ||||
Serializer |
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| 1.0;1 |
1 | /* | |
2 | * Licensed to the Apache Software Foundation (ASF) under one | |
3 | * or more contributor license agreements. See the NOTICE file | |
4 | * distributed with this work for additional information | |
5 | * regarding copyright ownership. The ASF licenses this file | |
6 | * to you under the Apache License, Version 2.0 (the | |
7 | * "License"); you may not use this file except in compliance | |
8 | * with the License. You may obtain a copy of the License at | |
9 | * | |
10 | * http://www.apache.org/licenses/LICENSE-2.0 | |
11 | * | |
12 | * Unless required by applicable law or agreed to in writing, | |
13 | * software distributed under the License is distributed on an | |
14 | * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY | |
15 | * KIND, either express or implied. See the License for the | |
16 | * specific language governing permissions and limitations | |
17 | * under the License. | |
18 | */ | |
19 | package org.apache.shiro.io; | |
20 | ||
21 | /** | |
22 | * A <code>Serializer</code> converts objects to raw binary data and vice versa, enabling persistent storage | |
23 | * of objects to files, HTTP cookies, or other mechanism. | |
24 | * <p/> | |
25 | * A <code>Serializer</code> should only do conversion, never change the data, such as encoding/decoding or | |
26 | * encryption. These orthogonal concerns are handled elsewhere by Shiro, for example, via | |
27 | * {@link org.apache.shiro.codec.CodecSupport CodecSupport} and {@link org.apache.shiro.crypto.CipherService CipherService}s. | |
28 | * | |
29 | * @param <T> The type of the object being serialized and deserialized. | |
30 | * @since 0.9 | |
31 | */ | |
32 | public interface Serializer<T> { | |
33 | ||
34 | /** | |
35 | * Converts the specified Object into a byte[] array. This byte[] array must be able to be reconstructed | |
36 | * back into the original Object form via the {@link #deserialize(byte[]) deserialize} method. | |
37 | * | |
38 | * @param o the Object to convert into a byte[] array. | |
39 | * @return a byte[] array representing the Object's state that can be restored later. | |
40 | * @throws SerializationException if an error occurrs converting the Object into a byte[] array. | |
41 | */ | |
42 | byte[] serialize(T o) throws SerializationException; | |
43 | ||
44 | /** | |
45 | * Converts the specified raw byte[] array back into an original Object form. This byte[] array is expected to | |
46 | * be the output of a previous {@link #serialize(Object) serialize} method call. | |
47 | * | |
48 | * @param serialized the raw data resulting from a previous {@link #serialize(Object) serialize} call. | |
49 | * @return the Object that was previously serialized into the raw byte[] array. | |
50 | * @throws SerializationException if an error occurrs converting the raw byte[] array back into an Object. | |
51 | */ | |
52 | T deserialize(byte[] serialized) throws SerializationException; | |
53 | } |