01: /*
02: * JBoss, Home of Professional Open Source
03: * Copyright 2007, Red Hat Middleware LLC, and individual contributors as indicated
04: * by the @authors tag. See the copyright.txt in the distribution for a
05: * full listing of individual contributors.
06: *
07: * This is free software; you can redistribute it and/or modify it
08: * under the terms of the GNU Lesser General Public License as
09: * published by the Free Software Foundation; either version 2.1 of
10: * the License, or (at your option) any later version.
11: *
12: * This software is distributed in the hope that it will be useful,
13: * but WITHOUT ANY WARRANTY; without even the implied warranty of
14: * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15: * Lesser General Public License for more details.
16: *
17: * You should have received a copy of the GNU Lesser General Public
18: * License along with this software; if not, write to the Free
19: * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
20: * 02110-1301 USA, or see the FSF site: http://www.fsf.org.
21: */
22: package org.jboss.lang.ref;
23:
24: import java.lang.ref.WeakReference;
25:
26: /**
27: * @author carlo
28: *
29: */
30: public class WeakThreadLocal<T> {
31: private ThreadLocal<WeakReference<T>> delegate = new ThreadLocal<WeakReference<T>>();
32:
33: public T get() {
34: WeakReference<T> ref = delegate.get();
35: if (ref == null)
36: return null;
37: return ref.get();
38: }
39:
40: public void remove() {
41: delegate.remove();
42: }
43:
44: public void set(T value) {
45: delegate.set(new WeakReference<T>(value));
46: }
47: }
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