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.proxy.ejb;
23:
24: import java.util.Hashtable;
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 $Revision $
47: */
48: public class SingleRetryInterceptor extends RetryInterceptor {
49: /** Serial Version Identifier. @since 1.0 */
50: private static final long serialVersionUID = 1;
51:
52: /** The current externalized data version */
53:
54: /**
55: * No-argument constructor for externalization.
56: */
57: public SingleRetryInterceptor() {
58: super (1, 100);
59: }
60: }
|