01: /*
02: * JBoss, Home of Professional Open Source.
03: * Copyright 2006, Red Hat Middleware LLC, and individual contributors
04: * as indicated by the @author tags. See the copyright.txt file in the
05: * distribution for a 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.ejb3;
23:
24: import org.jboss.lang.ref.WeakThreadLocal;
25: import org.jboss.logging.Logger;
26:
27: /**
28: * Pools EJBs within a ThreadLocal.
29: *
30: * @author <a href="mailto:bill@jboss.org">Bill Burke</a>
31: * @version $Revision: 61280 $
32: */
33: public class ThreadlocalPool extends AbstractPool {
34: private static final Logger log = Logger
35: .getLogger(ThreadlocalPool.class);
36:
37: protected WeakThreadLocal<BeanContext> pool = new WeakThreadLocal<BeanContext>();
38:
39: public ThreadlocalPool() {
40: }
41:
42: public void destroy() {
43: log.trace("destroying pool");
44:
45: // This really serves little purpose, because we want the whole thread local map to die
46: pool.remove();
47: }
48:
49: public BeanContext get() {
50: BeanContext ctx = pool.get();
51: if (ctx != null) {
52: pool.set(null);
53: return ctx;
54: }
55:
56: ctx = create();
57: return ctx;
58: }
59:
60: public BeanContext get(Class[] initTypes, Object[] initValues) {
61: BeanContext ctx = pool.get();
62: if (ctx != null) {
63: pool.set(null);
64: return ctx;
65: }
66:
67: ctx = create(initTypes, initValues);
68: return ctx;
69: }
70:
71: public void release(BeanContext ctx) {
72: if (pool.get() != null)
73: remove(ctx);
74: else
75: pool.set(ctx);
76: }
77:
78: public int getCurrentSize() {
79: return -1;
80: }
81:
82: public int getAvailableCount() {
83: return -1;
84: }
85:
86: public int getMaxSize() {
87: return -1;
88: }
89:
90: public void setMaxSize(int maxSize) {
91: }
92: }
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