1 | /* |
2 | * Copyright 2006-2013 the original author or authors. |
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 org.springframework.batch.item; |
17 | |
18 | import org.springframework.batch.item.util.ExecutionContextUserSupport; |
19 | |
20 | /** |
21 | * Empty method implementation of {@link ItemStream}. |
22 | * |
23 | * @author Dave Syer |
24 | * @author Dean de Bree |
25 | * |
26 | */ |
27 | public abstract class ItemStreamSupport implements ItemStream { |
28 | |
29 | private final ExecutionContextUserSupport executionContextUserSupport = new ExecutionContextUserSupport(); |
30 | |
31 | /** |
32 | * No-op. |
33 | * @see org.springframework.batch.item.ItemStream#close() |
34 | */ |
35 | @Override |
36 | public void close() { |
37 | } |
38 | |
39 | /** |
40 | * No-op. |
41 | * @see org.springframework.batch.item.ItemStream#open(ExecutionContext) |
42 | */ |
43 | @Override |
44 | public void open(ExecutionContext executionContext) { |
45 | } |
46 | |
47 | /** |
48 | * Return empty {@link ExecutionContext}. |
49 | * @see org.springframework.batch.item.ItemStream#update(ExecutionContext) |
50 | */ |
51 | @Override |
52 | public void update(ExecutionContext executionContext) { |
53 | } |
54 | |
55 | /** |
56 | * The name of the component which will be used as a stem for keys in the |
57 | * {@link ExecutionContext}. Subclasses should provide a default value, e.g. |
58 | * the short form of the class name. |
59 | * |
60 | * @param name the name for the component |
61 | */ |
62 | public void setName(String name) { |
63 | this.setExecutionContextName(name); |
64 | } |
65 | |
66 | protected void setExecutionContextName(String name) { |
67 | executionContextUserSupport.setName(name); |
68 | } |
69 | |
70 | public String getExecutionContextKey(String key) { |
71 | return executionContextUserSupport.getKey(key); |
72 | } |
73 | |
74 | } |