1 /***
2 * Redistribution and use of this software and associated documentation
3 * ("Software"), with or without modification, are permitted provided
4 * that the following conditions are met:
5 *
6 * 1. Redistributions of source code must retain copyright
7 * statements and notices. Redistributions must also contain a
8 * copy of this document.
9 *
10 * 2. Redistributions in binary form must reproduce the
11 * above copyright notice, this list of conditions and the
12 * following disclaimer in the documentation and/or other
13 * materials provided with the distribution.
14 *
15 * 3. The name "Exolab" must not be used to endorse or promote
16 * products derived from this Software without prior written
17 * permission of Exoffice Technologies. For written permission,
18 * please contact info@exolab.org.
19 *
20 * 4. Products derived from this Software may not be called "Exolab"
21 * nor may "Exolab" appear in their names without prior written
22 * permission of Exoffice Technologies. Exolab is a registered
23 * trademark of Exoffice Technologies.
24 *
25 * 5. Due credit should be given to the Exolab Project
26 * (http://www.exolab.org/).
27 *
28 * THIS SOFTWARE IS PROVIDED BY EXOFFICE TECHNOLOGIES AND CONTRIBUTORS
29 * ``AS IS'' AND ANY EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT
30 * NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
31 * FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
32 * EXOFFICE TECHNOLOGIES OR ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
33 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
34 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
35 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
36 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
37 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
38 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
39 * OF THE POSSIBILITY OF SUCH DAMAGE.
40 *
41 * Copyright 2004-2005 (C) Exoffice Technologies Inc. All Rights Reserved.
42 *
43 * $Id: AbstractManagedConnection.java,v 1.4 2005/06/04 14:28:52 tanderson Exp $
44 */
45 package org.exolab.jms.net.connector;
46
47
48 /***
49 * Abstract implementation of the {@link ManagedConnection} interface.
50 *
51 * @author <a href="mailto:tma@netspace.net.au">Tim Anderson</a>
52 * @version $Revision: 1.4 $ $Date: 2005/06/04 14:28:52 $
53 */
54 public abstract class AbstractManagedConnection implements ManagedConnection {
55
56 /***
57 * The event listener for connection events.
58 */
59 private ManagedConnectionListener _listener;
60
61
62 /***
63 * Construct a new <code>AbstractManagedConnection</code>.
64 */
65 public AbstractManagedConnection() {
66 }
67
68 /***
69 * Registers a connection event listener.
70 *
71 * @param listener the connection event listener
72 * @throws ResourceException for any error
73 */
74 public synchronized void setConnectionEventListener(
75 ManagedConnectionListener listener)
76 throws ResourceException {
77 _listener = listener;
78 }
79
80 /***
81 * Notifies when the peer closes the physical connection.
82 */
83 protected void notifyClosed() {
84 ManagedConnectionListener listener = getConnectionEventListener();
85 if (listener != null) {
86 listener.closed(this);
87 }
88 }
89
90 /***
91 * Notifies of an error on the physical connection.
92 *
93 * @param error the error
94 */
95 protected void notifyError(Throwable error) {
96 ManagedConnectionListener listener = getConnectionEventListener();
97 if (listener != null) {
98 listener.error(this, error);
99 }
100 }
101
102 /***
103 * Returns the connection event listener.
104 *
105 * @return the connection event listener, or <code>null</code> if no
106 * listener is registered
107 */
108 protected synchronized ManagedConnectionListener
109 getConnectionEventListener() {
110 return _listener;
111 }
112 }