1 | /* |
2 | * Copyright 2006-2007 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.util; |
17 | |
18 | import org.springframework.batch.item.ExecutionContext; |
19 | import org.springframework.util.Assert; |
20 | |
21 | /** |
22 | * Facilitates assigning names to objects persisting data in |
23 | * {@link ExecutionContext} and generating keys for {@link ExecutionContext} |
24 | * based on the name. |
25 | * |
26 | * @author Robert Kasanicky |
27 | */ |
28 | public class ExecutionContextUserSupport { |
29 | |
30 | private String name; |
31 | |
32 | /** |
33 | * @param name unique name for the item stream used to create execution |
34 | * context keys. |
35 | */ |
36 | public void setName(String name) { |
37 | this.name = name; |
38 | } |
39 | |
40 | /** |
41 | * Prefix the argument with the name of the item stream to create a unique |
42 | * key that can be safely used to identify data stored in |
43 | * {@link ExecutionContext}. |
44 | */ |
45 | public String getKey(String s) { |
46 | Assert.hasLength(name, "ItemStream must have a name assigned."); |
47 | return name + "." + s; |
48 | } |
49 | |
50 | } |