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Java > Open Source Codes > org > jboss > proxy > ejb > SingleRetryInterceptor


1 /*
2 * JBoss, Home of Professional Open Source
3 * Copyright 2005, JBoss Inc., and individual contributors as indicated
4 * by the @authors tag. See the copyright.txt in the distribution for a
5 * full listing of individual contributors.
6 *
7 * This is free software; you can redistribute it and/or modify it
8 * under the terms of the GNU Lesser General Public License as
9 * 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.proxy.ejb;
23
24 import java.util.Hashtable JavaDoc;
25
26 import org.jboss.naming.NamingContextFactory;
27
28 /** An interceptor that will retry failed invocations by restoring the
29  * InvocationContext invoker. This is triggered by a ServiceUnavailableException
30  * which causes the interceptor to retry the
31  * lookup of the transport invoker using the jndi name obtained from the
32  * invocation context under the key InvocationKey.JNDI_NAME, with the additional
33  * extension of "-RemoteInvoker" if the invocation type is InvocationType.REMOTE
34  * and "-HomeInvoker" if the invocation type is InvocationType.HOME.
35  *
36  * The JNDI environment used for the lookup can be set via the setRetryEnv.
37  * Typically this is an HA-JNDI configuration with one or more bootstrap
38  * urls. If not set, an attempt will be made to use
39  * {@link NamingContextFactory#getInitialContext(Hashtable)} to find the
40  * JNDI environment. This will only be useful if java.naming.factory.initial
41  * was set to org.jboss.naming.NamingContextFactory. If neither of the above
42  * steps yield a set of naming environment properties, a default InitialContext
43  * will be used.
44  *
45  * @author brian.stansberry@jboss.org
46  * @version $Id$
47  */
48 public class SingleRetryInterceptor extends RetryInterceptor
49 {
50    /** Serial Version Identifier. @since 1.0 */
51    private static final long serialVersionUID = 1;
52    /** The current externalized data version */
53
54    /**
55     * No-argument constructor for externalization.
56     */
57    public SingleRetryInterceptor()
58    {
59       super(1, 100);
60    }
61 }
62
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