| /************************************************************** |
| * |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance |
| * with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, |
| * software distributed under the License is distributed on an |
| * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| * KIND, either express or implied. See the License for the |
| * specific language governing permissions and limitations |
| * under the License. |
| * |
| *************************************************************/ |
| |
| |
| |
| package com.sun.star.lib.util; |
| |
| /** |
| * Optional interface to be implemented by objects stored in a |
| * <code>WeakMap</code>. |
| * |
| * @see WeakMap |
| */ |
| public interface DisposeNotifier { |
| /** |
| * Adds a dispose listener, to be notified when this object is disposed. |
| * |
| * <p>It is unspecified what happens when the same listener is added |
| * multiple times.</p> |
| * |
| * <p>It is unspecified exactly when the <code>notifyDispose</code> callback |
| * is fired: immediately before the notifier is disposed, while it is in the |
| * process of disposing, or some time after it got disposed. But even if |
| * adding a listener to an already disposed notifer, the listener must |
| * eventually receive a <code>notifyDispose</code> callback.</p> |
| * |
| * @param listener a dispose listener, to be notified when this object is |
| * disposed; must not be <code>null</code> |
| */ |
| void addDisposeListener(DisposeListener listener); |
| } |