Mercurial > dive4elements > framework
comparison artifact-database/src/main/java/de/intevation/artifactdatabase/LazyBackendUser.java @ 165:81ad657569e1
Added Helper for lazy loading users.
artifacts/trunk@1390 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author | Sascha L. Teichmann <sascha.teichmann@intevation.de> |
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date | Thu, 03 Mar 2011 14:30:21 +0000 |
parents | |
children | 16cd059945e5 |
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164:268c2972d4a7 | 165:81ad657569e1 |
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1 /* | |
2 * Copyright (c) 2011 by Intevation GmbH | |
3 * | |
4 * This program is free software under the LGPL (>=v2.1) | |
5 * Read the file LGPL.txt coming with the software for details | |
6 * or visit http://www.gnu.org/licenses/ if it does not exist. | |
7 */ | |
8 package de.intevation.artifactdatabase; | |
9 | |
10 import de.intevation.artifacts.User; | |
11 import de.intevation.artifacts.UserFactory; | |
12 | |
13 import org.w3c.dom.Document; | |
14 | |
15 public class LazyBackendUser | |
16 implements User | |
17 { | |
18 protected UserFactory factory; | |
19 protected Backend backend; | |
20 protected String identifier; | |
21 protected User user; | |
22 protected Object context; | |
23 | |
24 public LazyBackendUser( | |
25 String identifier, | |
26 UserFactory factory, | |
27 Backend backend, | |
28 Object context | |
29 ) { | |
30 this.identifier = identifier; | |
31 this.factory = factory; | |
32 this.backend = backend; | |
33 this.context = context; | |
34 } | |
35 | |
36 protected User getUser() { | |
37 if (user == null) { | |
38 user = backend.getUser(identifier, factory, context); | |
39 if (user == null) { | |
40 throw new IllegalStateException("loading user failed"); | |
41 } | |
42 } | |
43 return user; | |
44 } | |
45 | |
46 public String identifier() { | |
47 return getUser().identifier(); | |
48 } | |
49 | |
50 public String getName() { | |
51 return getUser().getName(); | |
52 } | |
53 | |
54 public void setName(String name) { | |
55 getUser().setName(name); | |
56 } | |
57 | |
58 public void setIdentifier(String identifier) { | |
59 getUser().setIdentifier(identifier); | |
60 } | |
61 | |
62 public Document getRole() { | |
63 return getUser().getRole(); | |
64 } | |
65 | |
66 public void setRole(Document document) { | |
67 getUser().setRole(document); | |
68 } | |
69 } | |
70 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 : |