1 /**
2 * This file Copyright (c) 2015 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.jcr.decoration;
35
36 import javax.jcr.version.Version;
37 import javax.jcr.version.VersionIterator;
38
39 /**
40 * VersionIterator that applies wrappers and filtering by delegating to a {@link ContentDecorator}.
41 */
42 public class ContentDecoratorVersionIterator implements VersionIterator {
43
44 private final VersionIterator versionIterator;
45
46 private final ContentDecorator contentDecorator;
47
48 public ContentDecoratorVersionIterator(VersionIterator versionIterator, ContentDecorator contentDecorator) {
49 this.versionIterator = versionIterator;
50 this.contentDecorator = contentDecorator;
51 }
52
53 @Override
54 public Version nextVersion() {
55 return wrapVersion(versionIterator.nextVersion());
56 }
57
58 @Override
59 public void skip(long skipNum) {
60 versionIterator.skip(skipNum);
61 }
62
63 @Override
64 public long getSize() {
65 return versionIterator.getSize();
66 }
67
68 @Override
69 public long getPosition() {
70 return versionIterator.getPosition();
71 }
72
73 @Override
74 public boolean hasNext() {
75 return versionIterator.hasNext();
76 }
77
78 @Override
79 public Version next() {
80 return wrapVersion(versionIterator.nextVersion());
81 }
82
83 @Override
84 public void remove() {
85 versionIterator.remove();
86 }
87
88 protected Version wrapVersion(Version version) {
89 return contentDecorator.wrapVersion(version);
90 }
91 }