1
|
/**
|
2
|
* Copyright (C) 2007 EDIT
|
3
|
* European Distributed Institute of Taxonomy
|
4
|
* http://www.e-taxonomy.eu
|
5
|
*
|
6
|
* The contents of this file are subject to the Mozilla Public License Version 1.1
|
7
|
* See LICENSE.TXT at the top of this package for the full license terms.
|
8
|
*/
|
9
|
|
10
|
package eu.etaxonomy.cdm.common;
|
11
|
|
12
|
import org.apache.log4j.Logger;
|
13
|
|
14
|
//import org.apache.log4j.Logger;
|
15
|
|
16
|
/**
|
17
|
* Wrapps a result object so it can be used as method parameter and changed within the method.
|
18
|
* This is useful especially for simple data types like <code>Boolean</code> etc.<br>
|
19
|
* Example (usage):<br><code>
|
20
|
* public String myMethod(String oneParameter, ResultWrapper<Boolean> success){<br>
|
21
|
* __if (oneParameter.equals("foo")){<br>
|
22
|
* ____success = success.setValue(false);<br>
|
23
|
* ____return "Foo";<br>
|
24
|
* __}else{<br>
|
25
|
* ____//don't change success<br>
|
26
|
* ____return "All the best";<br>
|
27
|
* __}<br>
|
28
|
* }
|
29
|
* </code>
|
30
|
* Here a String is returned but the boolean value may also be changed and it's value is useable
|
31
|
* by the calling method
|
32
|
*
|
33
|
* @author a.mueller
|
34
|
* @since 01.11.2008
|
35
|
* @version 1.0
|
36
|
*/
|
37
|
public class ResultWrapper<T> {
|
38
|
private static final Logger logger = Logger.getLogger(ResultWrapper.class);
|
39
|
|
40
|
public static final ResultWrapper<Boolean> NewInstance(Boolean value){
|
41
|
ResultWrapper<Boolean> result = new ResultWrapper<Boolean>();
|
42
|
result.setValue(value);
|
43
|
if (logger.isDebugEnabled()){logger.debug("New Instance");}
|
44
|
return result;
|
45
|
}
|
46
|
|
47
|
T object;
|
48
|
|
49
|
/**
|
50
|
* @return the object
|
51
|
*/
|
52
|
public T getValue() {
|
53
|
return object;
|
54
|
}
|
55
|
|
56
|
/**
|
57
|
* @param object the object to set
|
58
|
*/
|
59
|
public void setValue(T value) {
|
60
|
this.object = value;
|
61
|
}
|
62
|
}
|