1 /**
2 * This file Copyright (c) 2003-2011 Magnolia International
3 * Ltd. (http://www.magnolia-cms.com). All rights reserved.
4 *
5 *
6 * This file is dual-licensed under both the Magnolia
7 * Network Agreement and the GNU General Public License.
8 * You may elect to use one or the other of these licenses.
9 *
10 * This file is distributed in the hope that it will be
11 * useful, but AS-IS and WITHOUT ANY WARRANTY; without even the
12 * implied warranty of MERCHANTABILITY or FITNESS FOR A
13 * PARTICULAR PURPOSE, TITLE, or NONINFRINGEMENT.
14 * Redistribution, except as permitted by whichever of the GPL
15 * or MNA you select, is prohibited.
16 *
17 * 1. For the GPL license (GPL), you can redistribute and/or
18 * modify this file under the terms of the GNU General
19 * Public License, Version 3, as published by the Free Software
20 * Foundation. You should have received a copy of the GNU
21 * General Public License, Version 3 along with this program;
22 * if not, write to the Free Software Foundation, Inc., 51
23 * Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
24 *
25 * 2. For the Magnolia Network Agreement (MNA), this file
26 * and the accompanying materials are made available under the
27 * terms of the MNA which accompanies this distribution, and
28 * is available at http://www.magnolia-cms.com/mna.html
29 *
30 * Any modifications to this file must keep this entire header
31 * intact.
32 *
33 */
34 package info.magnolia.cms.gui.controlx.version;
35
36 import info.magnolia.cms.core.Content;
37 import info.magnolia.cms.gui.controlx.list.AbstractListModel;
38 import info.magnolia.cms.gui.query.SearchQuery;
39
40 import java.util.ArrayList;
41 import java.util.Collection;
42 import java.util.List;
43
44 import javax.jcr.RepositoryException;
45 import javax.jcr.version.Version;
46 import javax.jcr.version.VersionHistory;
47 import javax.jcr.version.VersionIterator;
48
49
50 /**
51 * @author Sameer Charles $Id:VersionListModel.java 2544 2006-04-04 12:47:32Z philipp $
52 */
53 public class VersionListModel extends AbstractListModel {
54
55 /**
56 * versioned node
57 */
58 private Content content;
59
60 /**
61 * defines how many versions this model will return in maximum
62 */
63 private int max = -1;
64
65 /**
66 * search query to be used by sub implementation
67 */
68 protected SearchQuery query;
69
70 /**
71 * @param content
72 * @param max
73 */
74 public VersionListModel(Content content, int max) {
75 this.content = content;
76 this.max = max;
77 }
78
79 /**
80 * constructor
81 */
82 public VersionListModel(Content content) {
83 this.content = content;
84 }
85
86 /**
87 * get all versions
88 * @return all versions in a collection
89 */
90 protected Collection getResult() throws RepositoryException {
91 List allVersions = new ArrayList();
92
93 VersionHistory versionHistory = this.content.getVersionHistory();
94 if (versionHistory == null) {
95 return allVersions;
96 }
97
98 VersionIterator iterator = versionHistory.getAllVersions();
99 // skip root version, its safe here since this list is only meant for presentation
100 // and there is always a root version
101 iterator.nextVersion();
102 while (iterator.hasNext()) {
103 Version version = iterator.nextVersion();
104 allVersions.add(this.content.getVersionedContent(version));
105 }
106 if (max != -1) {
107 while(allVersions.size() > max){
108 allVersions.remove(0);
109 }
110 }
111 return allVersions;
112 }
113
114 /**
115 * @return the max
116 */
117 public int getMax() {
118 return this.max;
119 }
120
121 /**
122 * @param max the max to set
123 */
124 public void setMax(int max) {
125 this.max = max;
126 }
127
128 /**
129 * @return the content
130 */
131 public Content getContent() {
132 return this.content;
133 }
134
135 /**
136 * @param content the content to set
137 */
138 public void setContent(Content content) {
139 this.content = content;
140 }
141 }