1 /**
2 * This file Copyright (c) 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.jcr.iterator;
35
36 import javax.jcr.Property;
37 import javax.jcr.PropertyIterator;
38
39 import info.magnolia.jcr.predicate.AbstractPredicate;
40 import info.magnolia.jcr.wrapper.PropertyWrapperFactory;
41
42 /**
43 * PropertyIterator hiding all properties that do not pass the predicate, returned properties can also be wrapped.
44 *
45 * @version $Id$
46 */
47 public class FilteringPropertyIterator extends FilteringRangeIterator<Property> implements PropertyIterator {
48
49 private PropertyWrapperFactory wrapperFactory;
50 private AbstractPredicate<Property> predicate;
51
52 public FilteringPropertyIterator(PropertyIterator propertyIterator, AbstractPredicate<Property> predicate) {
53 super(propertyIterator);
54 this.predicate = predicate;
55 }
56
57 public FilteringPropertyIterator(PropertyIterator propertyIterator, AbstractPredicate predicate, PropertyWrapperFactory wrapperFactory) {
58 super(propertyIterator);
59 this.wrapperFactory = wrapperFactory;
60 this.predicate = predicate;
61 }
62
63 @Override
64 public Property next() {
65 return wrapProperty(super.next());
66 }
67
68 @Override
69 public Property nextProperty() {
70 return wrapProperty(super.next());
71 }
72
73 protected Property wrapProperty(Property property) {
74 return wrapperFactory != null ? wrapperFactory.wrapProperty(property) : property;
75 }
76
77 @Override
78 protected boolean evaluate(Property property) {
79 return predicate == null || predicate.evaluate(property);
80 }
81 }