/* * Copyright (c) 1999, Oracle and/or its affiliates. All rights reserved. * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * * This code is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License version 2 only, as * published by the Free Software Foundation. Oracle designates this * particular file as subject to the "Classpath" exception as provided * by Oracle in the LICENSE file that accompanied this code. * * This code is distributed in the hope that it will be useful, but WITHOUT * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License * version 2 for more details (a copy is included in the LICENSE file that * accompanied this code). * * You should have received a copy of the GNU General Public License version * 2 along with this work; if not, write to the Free Software Foundation, * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. * * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA * or visit www.oracle.com if you need additional information or have any * questions. */ package javax.naming.event; /** * Specifies the methods that a listener interested in namespace changes * must implement. * Specifically, the listener is interested in {@code NamingEvent}s * with event types of {@code OBJECT_ADDED, OBJECT_RENAMED}, or * {@code OBJECT_REMOVED}. *<p> * Such a listener must: *<ol> *<li>Implement this interface and its methods. *<li>Implement {@code NamingListener.namingExceptionThrown()} so that * it will be notified of exceptions thrown while attempting to * collect information about the events. *<li>Register with the source using the source's {@code addNamingListener()} * method. *</ol> * A listener that wants to be notified of {@code OBJECT_CHANGED} event types * should also implement the {@code ObjectChangeListener} * interface. * * @author Rosanna Lee * @author Scott Seligman * * @see NamingEvent * @see ObjectChangeListener * @see EventContext * @see EventDirContext * @since 1.3 */ public interface NamespaceChangeListener extends NamingListener { /** * Called when an object has been added. *<p> * The binding of the newly added object can be obtained using * {@code evt.getNewBinding()}. * @param evt The nonnull event. * @see NamingEvent#OBJECT_ADDED */ void objectAdded(NamingEvent evt); /** * Called when an object has been removed. *<p> * The binding of the newly removed object can be obtained using * {@code evt.getOldBinding()}. * @param evt The nonnull event. * @see NamingEvent#OBJECT_REMOVED */ void objectRemoved(NamingEvent evt); /** * Called when an object has been renamed. *<p> * The binding of the renamed object can be obtained using * {@code evt.getNewBinding()}. Its old binding (before the rename) * can be obtained using {@code evt.getOldBinding()}. * One of these may be null if the old/new binding was outside the * scope in which the listener has registered interest. * @param evt The nonnull event. * @see NamingEvent#OBJECT_RENAMED */ void objectRenamed(NamingEvent evt); }