1 /** 2 * This file Copyright (c) 2008-2015 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.module.cache.cachepolicy; 35 36 import info.magnolia.cms.core.AggregationState; 37 import info.magnolia.module.cache.Cache; 38 import info.magnolia.module.cache.CachePolicy; 39 import info.magnolia.module.cache.CachePolicyResult; 40 import info.magnolia.module.cache.FlushPolicy; 41 import info.magnolia.module.cache.filter.CacheResponseWrapper; 42 import info.magnolia.voting.voters.VoterSet; 43 44 /** 45 * Cache policy instructing cache not to store the generated content. 46 * @author gjoseph 47 * @version $Revision: $ ($Author: $) 48 */ 49 public class Never implements CachePolicy { 50 private static final CachePolicyResult NEVER = new CachePolicyResult(CachePolicyResult.bypass, null, null); 51 52 @Override 53 public CachePolicyResult shouldCache(final Cache cache, final AggregationState aggregationState, final FlushPolicy flushPolicy) { 54 return NEVER; 55 } 56 57 @Override 58 public Object retrieveCacheKey(AggregationState aggregationState) { 59 // there are no keys since we don't cache 60 return null; 61 } 62 63 @Override 64 public Object[] retrieveCacheKeys(String uuid, String repository) { 65 // there are no keys since we don't cache 66 return null; 67 } 68 69 @Override 70 public void persistCacheKey(String repo, String uuid, Object key) { 71 // do nothing 72 } 73 74 @Override 75 public Object[] removeCacheKeys(String uuid, String repository) { 76 // do nothing 77 return null; 78 } 79 80 @Override 81 public VoterSet<CacheResponseWrapper> getTtlVoters() { 82 return null; 83 } 84 }