Classes in this File | Line Coverage | Branch Coverage | Complexity | ||||
TransientStateHolder |
|
| 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 javax.faces.component; | |
20 | ||
21 | /** | |
22 | * <p>This interface is implemented by classes | |
23 | * that need to save state that are expected to be available only on the | |
24 | * current request.</p> | |
25 | * | |
26 | * <p>An implementor <strong>must</strong> implement both {@link | |
27 | * #saveTransientState} and {@link #restoreTransientState} methods in this class, since | |
28 | * these two methods have a tightly coupled contract between themselves. | |
29 | * In other words, if there is an inheritance hierarchy, it is not | |
30 | * permissible to have the {@link #saveTransientState} and {@link #restoreTransientState} | |
31 | * methods reside at different levels of the hierarchy.</p> | |
32 | * | |
33 | * @since 2.1 | |
34 | */ | |
35 | public interface TransientStateHolder | |
36 | { | |
37 | /** | |
38 | * <p>Return the object containing related "transient states". | |
39 | * that could be used later to restore the "transient state".<p> | |
40 | * | |
41 | * @param context | |
42 | * @return object containing transient values | |
43 | * @since 2.1 | |
44 | */ | |
45 | public java.lang.Object saveTransientState(javax.faces.context.FacesContext context); | |
46 | ||
47 | /** | |
48 | * <p>Restore the "transient state" using the object passed as | |
49 | * state.</p> | |
50 | * | |
51 | * <p>If the <code>state</code> | |
52 | * argument is <code>null</code> clear any previous transient | |
53 | * state if any and return.</p> | |
54 | * | |
55 | * @param context | |
56 | * @param state the object containing transient values | |
57 | * @since 2.1 | |
58 | */ | |
59 | public void restoreTransientState(javax.faces.context.FacesContext context, | |
60 | java.lang.Object state); | |
61 | ||
62 | } |