1 /**
2 * This file Copyright (c) 2013 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.wrapper;
35
36 import info.magnolia.jcr.decoration.AbstractContentDecorator;
37 import info.magnolia.jcr.iterator.FilteringNodeIterator;
38 import info.magnolia.jcr.predicate.AbstractPredicate;
39
40 import javax.jcr.Node;
41 import javax.jcr.NodeIterator;
42
43 /**
44 * Content decorator that filters out child nodes with given predicate.
45 * Used in {@link ChildFilteringNodeWrapper}.
46 */
47 public class ChildFilteringContentDecorator extends AbstractContentDecorator {
48
49 private AbstractPredicate<Node> predicate;
50 private boolean filterDescendants;
51 private boolean multipleWrapEnabled;
52
53 public ChildFilteringContentDecorator(AbstractPredicate<Node> predicate, boolean filterDescendants) {
54 this(predicate, filterDescendants, true);
55 }
56
57 public ChildFilteringContentDecorator(AbstractPredicate<Node> predicate, boolean filterDescendants, boolean multipleWrapEnabled) {
58 this.predicate = predicate;
59 this.filterDescendants = filterDescendants;
60 this.multipleWrapEnabled = multipleWrapEnabled;
61 }
62
63 @Override
64 public Node wrapNode(Node node) {
65 return filterDescendants ? new ChildFilteringNodeWrapper(node, predicate, filterDescendants) : node;
66 }
67
68 @Override
69 public NodeIterator wrapNodeIterator(NodeIterator nodeIterator) {
70 return new FilteringNodeIterator(nodeIterator, predicate, filterDescendants ? this : null);
71 }
72
73 @Override
74 public boolean evaluateNode(Node node) {
75 return predicate.evaluate(node);
76 }
77
78 @Override
79 public boolean isMultipleWrapEnabled() {
80 return this.multipleWrapEnabled;
81 }
82
83 }