| /* |
| * Copyright (c) 2015 Eike Stepper (Berlin, Germany) and others. |
| * All rights reserved. This program and the accompanying materials |
| * are made available under the terms of the Eclipse Public License v1.0 |
| * which accompanies this distribution, and is available at |
| * http://www.eclipse.org/legal/epl-v10.html |
| * |
| * Contributors: |
| * Eike Stepper - initial API and implementation |
| */ |
| package org.eclipse.net4j.util.ref; |
| |
| import java.lang.ref.Reference; |
| import java.lang.ref.ReferenceQueue; |
| import java.lang.ref.WeakReference; |
| |
| /** |
| * @author Eike Stepper |
| * @since 3.5 |
| */ |
| public abstract class ReferenceMonitor<T> extends ReferenceQueueWorker<T> |
| { |
| public ReferenceMonitor() |
| { |
| } |
| |
| public void monitor(T object) |
| { |
| ReferenceQueue<T> queue = getQueue(); |
| new WeakReference<T>(object, queue); |
| } |
| |
| @Override |
| protected void work(Reference<? extends T> reference) |
| { |
| T object = reference.get(); |
| if (object != null) |
| { |
| work(object); |
| } |
| } |
| |
| protected abstract void work(T object); |
| } |