1 /**
2 * This file Copyright (c) 2009-2016 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.imaging.caching;
35
36 import info.magnolia.cms.core.NodeData;
37 import info.magnolia.imaging.ImageGenerator;
38 import info.magnolia.imaging.ParameterProvider;
39
40 import javax.jcr.PathNotFoundException;
41 import javax.jcr.Property;
42
43 /**
44 * A {@link CachingStrategy} implementation that will ... never cache !
45 *
46 * @param <P> type of ParameterProvider's parameter
47 */
48 public class NullCachingStrategy<P> implements CachingStrategy<P> {
49 @Override
50 public String getCachePath(ImageGenerator<ParameterProvider<P>> parameterProviderImageGenerator, ParameterProvider<P> parameterProvider) {
51 return null;
52 }
53
54 /**
55 * @deprecated since 3.3 - use {@link #shouldRegenerate(Property, ParameterProvider)} instead.
56 */
57 @Deprecated
58 public boolean shouldRegenerate(NodeData cachedBinary, ParameterProvider<P> parameterProvider) {
59 try {
60 return shouldRegenerate(cachedBinary.getJCRProperty(), parameterProvider);
61 } catch (PathNotFoundException e) {
62 throw new IllegalStateException("Unable to obtain JCR Property from NodeData " + cachedBinary, e);
63 }
64 }
65
66 @Override
67 public boolean shouldRegenerate(Property cachedBinary, ParameterProvider<P> parameterProvider) {
68 return true;
69 }
70 }