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1 /*** 2 * Redistribution and use of this software and associated documentation 3 * ("Software"), with or without modification, are permitted provided 4 * that the following conditions are met: 5 * 6 * 1. Redistributions of source code must retain copyright 7 * statements and notices. Redistributions must also contain a 8 * copy of this document. 9 * 10 * 2. Redistributions in binary form must reproduce the 11 * above copyright notice, this list of conditions and the 12 * following disclaimer in the documentation and/or other 13 * materials provided with the distribution. 14 * 15 * 3. The name "Exolab" must not be used to endorse or promote 16 * products derived from this Software without prior written 17 * permission of Exoffice Technologies. For written permission, 18 * please contact info@exolab.org. 19 * 20 * 4. Products derived from this Software may not be called "Exolab" 21 * nor may "Exolab" appear in their names without prior written 22 * permission of Exoffice Technologies. Exolab is a registered 23 * trademark of Exoffice Technologies. 24 * 25 * 5. Due credit should be given to the Exolab Project 26 * (http://www.exolab.org/). 27 * 28 * THIS SOFTWARE IS PROVIDED BY EXOFFICE TECHNOLOGIES AND CONTRIBUTORS 29 * ``AS IS'' AND ANY EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT 30 * NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND 31 * FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL 32 * EXOFFICE TECHNOLOGIES OR ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, 33 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 34 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 35 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 36 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 37 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 38 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED 39 * OF THE POSSIBILITY OF SUCH DAMAGE. 40 * 41 * Copyright 1999 (C) Exoffice Technologies Inc. All Rights Reserved. 42 * 43 * $Id: DestinationCacheEventListener.java,v 1.4 2003/08/17 01:32:24 tanderson Exp $ 44 * 45 * Date Author Changes 46 * 3/1/2001 jima Created 47 */ 48 package org.exolab.jms.messagemgr; 49 50 import java.sql.Connection; 51 52 import org.exolab.jms.message.MessageImpl; 53 import org.exolab.jms.persistence.PersistenceException; 54 55 56 /*** 57 * A DestinationCacheEventListener responds to events generated by a 58 * {@link DestinationCache}. 59 * It gets notified when a message is added or removed for a particular 60 * destination. 61 * 62 * @version $Revision: 1.4 $ $Date: 2003/08/17 01:32:24 $ 63 * @author <a href="mailto:jima@exoffice.com">Jim Alateras</a> 64 */ 65 public interface DestinationCacheEventListener { 66 67 /*** 68 * This event is called when a non-persistent message is added to the 69 * DestinationCache. 70 * 71 * @param message - message added to cache 72 */ 73 public boolean messageAdded(MessageImpl message); 74 75 /*** 76 * This event is called when a message is removed from the DestinationCache. 77 * 78 * @param message - message removed from cache 79 */ 80 public boolean messageRemoved(MessageImpl message); 81 82 /*** 83 * This event is called when a persistent message is added to the 84 * DestinationCache. 85 * 86 * @param connection - the database connection 87 * @param message - message added to cache 88 * @throws PersistenceException - if there is a persistence related problem 89 */ 90 public boolean persistentMessageAdded(Connection connection, 91 MessageImpl message) 92 throws PersistenceException; 93 94 /*** 95 * This event is called when a message is removed from the 96 * DestinationCache. 97 * 98 * @param connection - the database connection 99 * @param message - message to remove from cache 100 * @throws PersistenceException - if there is a persistence related problem 101 */ 102 public boolean persistentMessageRemoved(Connection connection, 103 MessageImpl message) 104 throws PersistenceException; 105 } 106

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