01: /*
02: * HA-JDBC: High-Availability JDBC
03: * Copyright (c) 2004-2007 Paul Ferraro
04: *
05: * This library is free software; you can redistribute it and/or modify it
06: * under the terms of the GNU Lesser General Public License as published by the
07: * Free Software Foundation; either version 2.1 of the License, or (at your
08: * option) any later version.
09: *
10: * This library is distributed in the hope that it will be useful, but WITHOUT
11: * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
12: * FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License
13: * for more details.
14: *
15: * You should have received a copy of the GNU Lesser General Public License
16: * along with this library; if not, write to the Free Software Foundation,
17: * Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
18: *
19: * Contact: ferraro@users.sourceforge.net
20: */
21: package net.sf.hajdbc.util.concurrent;
22:
23: import java.util.concurrent.Executors;
24: import java.util.concurrent.ThreadFactory;
25:
26: /**
27: * ThreadFactory implementation that creates daemon threads.
28: *
29: * @author Paul Ferraro
30: * @since 1.1
31: */
32: public class DaemonThreadFactory implements ThreadFactory {
33: private static ThreadFactory instance = new DaemonThreadFactory();
34:
35: private ThreadFactory factory = Executors.defaultThreadFactory();
36:
37: /**
38: * Returns single shared instance
39: * @return a ThreadFactory instance
40: */
41: public static ThreadFactory getInstance() {
42: return instance;
43: }
44:
45: /**
46: * @see java.util.concurrent.ThreadFactory#newThread(java.lang.Runnable)
47: */
48: @Override
49: public Thread newThread(Runnable runnable) {
50: Thread thread = this .factory.newThread(runnable);
51:
52: thread.setDaemon(true);
53:
54: return thread;
55: }
56: }
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