| /** |
| * JDBM LICENSE v1.00 |
| * |
| * Redistribution and use of this software and associated documentation |
| * ("Software"), with or without modification, are permitted provided |
| * that the following conditions are met: |
| * |
| * 1. Redistributions of source code must retain copyright |
| * statements and notices. Redistributions must also contain a |
| * copy of this document. |
| * |
| * 2. Redistributions in binary form must reproduce the |
| * above copyright notice, this list of conditions and the |
| * following disclaimer in the documentation and/or other |
| * materials provided with the distribution. |
| * |
| * 3. The name "JDBM" must not be used to endorse or promote |
| * products derived from this Software without prior written |
| * permission of Cees de Groot. For written permission, |
| * please contact cg@cdegroot.com. |
| * |
| * 4. Products derived from this Software may not be called "JDBM" |
| * nor may "JDBM" appear in their names without prior written |
| * permission of Cees de Groot. |
| * |
| * 5. Due credit should be given to the JDBM Project |
| * (http://jdbm.sourceforge.net/). |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE JDBM PROJECT AND CONTRIBUTORS |
| * ``AS IS'' AND ANY EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT |
| * NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND |
| * FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL |
| * CEES DE GROOT OR ANY CONTRIBUTORS BE LIABLE FOR ANY DIRECT, |
| * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES |
| * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR |
| * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
| * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, |
| * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
| * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED |
| * OF THE POSSIBILITY OF SUCH DAMAGE. |
| * |
| * Copyright 2000 (C) Cees de Groot. All Rights Reserved. |
| * Contributions are Copyright (C) 2000 by their associated contributors. |
| * |
| * $Id: CachePolicyListener.java,v 1.3 2003/11/01 13:25:41 dranatunga Exp $ |
| */ |
| |
| package jdbm.helper; |
| |
| /** |
| * Callback interface between {@link CachePolicy} and a Cache implementation |
| * to notify about cached object eviction. |
| * <p> |
| * Note that <code>CachePolicy</code> implementations typically use |
| * <em>object equality</em> when removing listeners, so concrete |
| * implementations of this interface should also pay attention to |
| * their {@link Object#equals(Object)} and {@link Object#hashCode()} |
| * methods. |
| * |
| * @author <a href="mailto:boisvert@intalio.com">Alex Boisvert</a> |
| * @version $Id: CachePolicyListener.java,v 1.3 2003/11/01 13:25:41 dranatunga Exp $ |
| */ |
| public interface CachePolicyListener { |
| |
| /** |
| * Notification that the cache this listener is attached to is evicting |
| * the object indicated. |
| * |
| * @param obj object being evited from cache |
| * @throws CacheEvictionException if this listener encountered problems |
| * while preparing for the specified object's eviction. For example, |
| * a listener may try to persist the object to disk, and encounter |
| * an <code>IOException</code>. |
| */ |
| public void cacheObjectEvicted(Object obj) throws CacheEvictionException; |
| |
| } |
