JMS Singleton.. How to

skely Jun 24, 2003 2:34 PM

"Skely" wrote:
Hi Guys,

My requirement is to get (onMessage) notification one by one.
Next notification should wait until I finish my onMessage method.

So I created my own type of MessageDrivenBean and named it "Singleton Message Driven Bean" and configured the following in standardjboss.xml

<container-configuration>
<container-name>Singleton Message Driven Bean</container-name>
<call-logging>false</call-logging>

<container-interceptors>
<interceptor>org.jboss.ejb.plugins.ProxyFactoryFinderInterceptor</interceptor>
<interceptor>org.jboss.ejb.plugins.LogInterceptor</interceptor>
<interceptor>org.jboss.ejb.plugins.RunAsSecurityInterceptor</interceptor>

<interceptor transaction="Container">org.jboss.ejb.plugins.TxInterceptorCMT</interceptor>
<interceptor transaction="Container" metricsEnabled="true">org.jboss.ejb.plugins.MetricsInterceptor</interceptor>
<interceptor transaction="Container">org.jboss.ejb.plugins.MessageDrivenInstanceInterceptor</interceptor>

<interceptor transaction="Bean">org.jboss.ejb.plugins.MessageDrivenInstanceInterceptor</interceptor>
<interceptor transaction="Bean">org.jboss.ejb.plugins.MessageDrivenTxInterceptorBMT</interceptor>
<interceptor transaction="Bean" metricsEnabled="true">org.jboss.ejb.plugins.MetricsInterceptor</interceptor>
<interceptor>org.jboss.resource.connectionmanager.CachedConnectionInterceptor</interceptor>
</container-interceptors>
<instance-pool>org.jboss.ejb.plugins.MessageDrivenInstancePool</instance-pool>
<instance-cache></instance-cache>
<persistence-manager></persistence-manager>
<container-pool-conf>
<MaximumSize>100</MaximumSize>
</container-pool-conf>
<invoker-proxy-binding>
<name>message-driven-bean</name>
<invoker-mbean>default</invoker-mbean>
<proxy-factory>org.jboss.ejb.plugins.jms.JMSContainerInvoker</proxy-factory>
<proxy-factory-config>
<JMSProviderAdapterJNDI>DefaultJMSProvider</JMSProviderAdapterJNDI>
<ServerSessionPoolFactoryJNDI>StdJMSPool</ServerSessionPoolFactoryJNDI>

<MaximumSize>1</MaximumSize>
<MaxMessages>1</MaxMessages>
<MDBConfig>
<ReconnectIntervalSec>10</ReconnectIntervalSec>
<DLQConfig>
<DestinationQueue>queue/DLQ</DestinationQueue>
<MaxTimesRedelivered>10</MaxTimesRedelivered>
<TimeToLive>0</TimeToLive>
</DLQConfig>
</MDBConfig>
</proxy-factory-config>
</invoker-proxy-binding>
</container-configuration>

When I used this configuration in my MessageDrivenbean, even though I limited the JMSPool to be 1, it is not behaving the way I want. It just flushes the onMessage call before my method ends. Am I doing anything wrong. Could anybody suggest me please.

I'm running on jboss-3.2.1_tomcat-4.1.24, and JDK1.4.1 on windows platform.

Thanks in advance,
Magesh