Bugs item #633800, was opened at 2002-11-05 05:16 You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=376685&aid=633800&group_id=22866
Category: JBossMQ Group: v3.0 Rabbit Hole >Status: Closed >Resolution: Invalid Priority: 5 Submitted By: Daniel Sieroka (sieroka) Assigned to: Nathan W. Phelps (nphelps) Summary: Cannot call setProperty() after clear() Initial Comment: The JMS spec says that you can set properties on incoming JMS messages: lObjectMessage.clearBody(); lObjectMessage.setStringProperty( "PROPERTY", lProperty ); With JBoss 3.0.3 I get the following error: javax.jms.MessageNotWriteableException: Properties are read-only at org.jboss.mq.SpyMessage.setStringProperty (SpyMessage.java:423) at com.platespin.oss.apps.masterwatch.ejb.MhwDetailedSt atsMessageBean.onMessage (MhwDetailedStatsMessageBean.java:173) at java.lang.reflect.Method.invoke(Native Method) at org.jboss.ejb.MessageDrivenContainer$ContainerIntercep tor.invoke(MessageDrivenContainer.java:391) at org.jboss.resource.connectionmanager.CachedConnectio nInterceptor.invoke (CachedConnectionInterceptor.java:186) at org.jboss.ejb.plugins.MessageDrivenInstanceInterceptor.i nvoke(MessageDrivenInstanceInterceptor.java:88) at org.jboss.ejb.plugins.AbstractTxInterceptor.invokeNext (AbstractTxInterceptor.java:107) at org.jboss.ejb.plugins.TxInterceptorCMT.runWithTransacti ons(TxInterceptorCMT.java:178) at org.jboss.ejb.plugins.TxInterceptorCMT.invoke (TxInterceptorCMT.java:60) at org.jboss.ejb.plugins.RunAsSecurityInterceptor.invoke (RunAsSecurityInterceptor.java:100) at org.jboss.ejb.plugins.LogInterceptor.invoke (LogInterceptor.java:203) at org.jboss.ejb.MessageDrivenContainer.invoke (MessageDrivenContainer.java:302) at org.jboss.ejb.plugins.jms.JMSContainerInvoker.invoke (JMSContainerInvoker.java:962) at org.jboss.ejb.plugins.jms.JMSContainerInvoker$Message ListenerImpl.onMessage(JMSContainerInvoker.java:1038) at org.jboss.jms.asf.StdServerSession.onMessage (StdServerSession.java:238) at org.jboss.mq.SpyMessageConsumer.sessionConsumer ProcessMessage(SpyMessageConsumer.java:603) at org.jboss.mq.SpyMessageConsumer.addMessage (SpyMessageConsumer.java:417) at org.jboss.mq.SpySession.run(SpySession.java:259) at org.jboss.jms.asf.StdServerSession.run (StdServerSession.java:177) at EDU.oswego.cs.dl.util.concurrent.PooledExecutor$Work er.run(PooledExecutor.java:642) at java.lang.Thread.run(Thread.java:479) ---------------------------------------------------------------------- Comment By: Nathan W. Phelps (nphelps) Date: 2002-11-27 07:44 Message: Logged In: YES user_id=130188 You are incorrect. The JMS Specification section 3.10 says: "When a message is received, its header field values can be changed; however, its property entries and its body are read- only, as specified in this chapter. The rationale for the read-only restriction is that it gives JMS providers more freedom in how they implement the management of received messages. For instance, they may return a message object that references property entries and body values that reside in an internal message buffer rather than being forced to make a copy. A consumer can modify a received message after calling either the clearBody or clearProperties method to make the body or properties writable. If the consumer modifies a received message, and the message is subsequently redelivered, the redelivered message must be the original, unmodified message (except for headers and properties modified by the JMS provider as a result of the redelivery, such as the JMSRedelivered header and the JMSXDeliveryCount property)." In other words, the properties in question are read only until you call clearProperties. Your call to clearBody only clears the body and sets it to read/write. JBossMQ is therefore, in compliance with the specification in this case. You need to change your code to call clearProperties instead of clearBody and then you will be able to successfully set properties. ---------------------------------------------------------------------- You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=376685&aid=633800&group_id=22866 ------------------------------------------------------- This sf.net email is sponsored by:ThinkGeek Welcome to geek heaven. http://thinkgeek.com/sf _______________________________________________ Jboss-development mailing list [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/jboss-development
