Does Weblogic7.0 supports JMS-connector

          HI,
          I am not sure about this. please someone gives some insights..
          As in the connector specifications 1.0 IN chapter 5 (Connection Management) it
          is written
          "An application component uses a connection factory to access a connection instance,
          which the component then uses to connect to the underlying EIS. A resource adapter
          acts as a factory of
          connections. Examples of connections include database connections, JMS (Java Message
          Service) connections, and SAP R/3 connections. Note that the support for pluggability
          of JMS providers into an application server will be added in the future versions
          of the specification."
          And i think weblogic7.0 supports connector specifications 1.0 only. please someone(may
          be from BEA) can tell that what is the truth. Can i develope a JMS connector and
          deploy/run on weblogic7.0.
          Regards
          Akhil Nagpal

I'm going to get a bit carried away with my answer:
          I'm not aware of any work going on in the area of JMS connectors, and I
          don't think they are supported in 7.0. I'm really not conversant
          - you will likely get a better answer from the
          weblogic.developer.interest.connector newsgroup.
          Note that MDBs and the messaging bridge already cache their
          underlying connections efficiently -- so
          there is no need for a connector there. Also most J2EE applications
          can programmitically cache their JMS resources somewhere handy
          in an EJB. (There is no performance hit for an unused
          JMS object, except for memory usage.)
          But if you need to pool JMS resources, consider writing your own
          pool - there isn't much to it. Check the sample code at the end of
          the "JMS Performance Guide" white-paper on dev2dev.bea.com.
          If you can wait, Weblogic 8.1 (beta out soon) has a simple way
          to automatically pool JMS connections via ejb resource references.
          Hope this helps,
          Tom
          Akhil Nagpal wrote:
          > HI,
          > I am not sure about this. please someone gives some insights..
          > As in the connector specifications 1.0 IN chapter 5 (Connection Management) it
          > is written
          > "An application component uses a connection factory to access a connection instance,
          > which the component then uses to connect to the underlying EIS. A resource adapter
          > acts as a factory of
          > connections. Examples of connections include database connections, JMS (Java Message
          > Service) connections, and SAP R/3 connections. Note that the support for pluggability
          > of JMS providers into an application server will be added in the future versions
          > of the specification."
          >
          >
          > And i think weblogic7.0 supports connector specifications 1.0 only. please someone(may
          > be from BEA) can tell that what is the truth. Can i develope a JMS connector and
          > deploy/run on weblogic7.0.
          >
          > Regards
          > Akhil Nagpal
          >
          >
          >

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I'm having problems configuring and using Oracle's JMS Connector with IBM WebSphere MQ JMS, as explained in the following Oracle How-to:
http://www.oracle.com/technology/tech/java/oc4j/1013/how_to/how-to-connect-to-mqseries/doc/how-to-connect-to-mqseries.html
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http://www.oracle.com/technology/tech/java/oc4j/1003/how_to/jcajmsmq/doc/Install.html
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After following the previous document, I end up with the following bindings (listing obtained using JMSAdmin console):
InitCtx> dis ctx
Contents of InitCtx
.bindings java.io.File
a MQXAQCF com.ibm.mq.jms.MQXAQueueConnectionFactory
a MQTCF com.ibm.mq.jms.MQTopicConnectionFactory
a MQQCF com.ibm.mq.jms.MQQueueConnectionFactory
a MQQ com.ibm.mq.jms.MQQueue
a MQT com.ibm.mq.jms.MQTopic
a MQXATCF com.ibm.mq.jms.MQXATopicConnectionFactory
7 Object(s)
0 Context(s)
7 Binding(s), 6 Administered
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<resource-ref-mapping
location = "MQJMSRASubcontext/MyXACF"
name = "jms/DealerConnectionFactory"/>
<config-property>
<config-property-name>ConnectionFactoryJndiName
</config-property-name>
<config-property-value>MQJMSRASubcontext/MyXACF
</config-property-value>
</config-property>
for this:
<resource-ref-mapping
location = "MQJMSRASubcontext/MyXAQCF"
name = "jms/DealerConnectionFactory"/>
<config-property>
<config-property-name>ConnectionFactoryJndiName
</config-property-name>
<config-property-value>MQJMSRASubcontext/MyXAQCF
</config-property-value>
</config-property>
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run-demo:
[exec] java.lang.NullPointerException
[exec] at oracle.j2ee.ra.jms.generic.RAUtils.lookupUsingResourceProvide
r(RAUtils.java:254)
[exec] at oracle.j2ee.ra.jms.generic.CommonManagedConnectionFactoryImpl
.getFactory(CommonManagedConnectionFactoryImpl.java:605)
[exec] at oracle.j2ee.ra.jms.generic.CommonFactoryWrapper.localCreateCo
nnection(CommonFactoryWrapper.java:121)
[exec] at oracle.j2ee.ra.jms.generic.ConnectionFactoryWrapper.createCon
nection(ConnectionFactoryWrapper.java:62)
[exec] at MyChannel.<init>(MyChannel.java:46)
[exec] at Player.play(Player.java:242)
[exec] at Player.main(Player.java:30)
Since MyCF is bound to the jndi location mqcf (in oc4j-ra.xml) which does not exist in my MQ bindings I decided to modify orion-ejb-jar.xml as I did for the MyXACF of the MDB.
I changed
<resource-ref-mapping
location = "MQJMSRASubcontext/MyCF"
name = "jms/PlayerConnectionFactory"/>
with this:
<resource-ref-mapping
location = "MQJMSRASubcontext/MyQCF"
name = "jms/PlayerConnectionFactory"/>
I changed MyCF to MyQCF, which has a jndi location of MQQCF (specified inside of oc4j-ra.xml) which has a valid MQ binding.
.... but I get the following error:
run-demo:
[exec] Exception in thread "main" java.lang.AbstractMethodError: com.ibm.mq
.jms.MQQueueConnectionFactory.createConnection()Ljavax/jms/Connection;
[exec] at oracle.j2ee.ra.jms.generic.CommonManagedConnectionFactoryImpl
.createManagedConnection(CommonManagedConnectionFactoryImpl.java:261)
[exec] at com.evermind.server.connector.ApplicationConnectionManager.cr
eateManagedConnection(ApplicationConnectionManager.java:1333)
[exec] at oracle.j2ee.connector.ConnectionPoolImpl.createManagedConnect
ionFromFactory(ConnectionPoolImpl.java:324)
[exec] at oracle.j2ee.connector.ConnectionPoolImpl.access$800(Connectio
nPoolImpl.java:95)
[exec] at oracle.j2ee.connector.ConnectionPoolImpl$NonePoolingScheme.ge
tManagedConnection(ConnectionPoolImpl.java:1209)
[exec] at oracle.j2ee.connector.ConnectionPoolImpl.getManagedConnection
(ConnectionPoolImpl.java:782)
[exec] at com.evermind.server.connector.ApplicationConnectionManager.ge
tConnectionFromPool(ApplicationConnectionManager.java:1532)
[exec] at com.evermind.server.connector.ApplicationConnectionManager.ac
quireConnectionContext(ApplicationConnectionManager.java:1477)
[exec] at com.evermind.server.connector.ApplicationConnectionManager.al
locateConnection(ApplicationConnectionManager.java:1423)
[exec] at oracle.j2ee.connector.OracleConnectionManager.unprivileged_al
locateConnection(OracleConnectionManager.java:244)
[exec] at oracle.j2ee.connector.OracleConnectionManager.allocateConnect
ion(OracleConnectionManager.java:198)
[exec] at oracle.j2ee.ra.jms.generic.CommonFactoryWrapper.localCreateCo
nnection(CommonFactoryWrapper.java:130)
[exec] at oracle.j2ee.ra.jms.generic.QueueConnectionFactoryWrapper.crea
teConnection(QueueConnectionFactoryWrapper.java:84)
[exec] at MyChannel.<init>(MyChannel.java:46)
[exec] at Player.play(Player.java:242)
[exec] at Player.main(Player.java:30)
[exec] Result: 1
So as you can see I'm stuck.
Maybe it is just a simple matter of defining the appropriate objects and bindigs for mqxacf and mqcf, but I don't know how to do that.
I would appreciate any help.
Message was edited by:
pablokrause

Thanks again for your quick and useful response Jeff.
Regarding the extra administration steps to get topic consumers working in MQ, I had already executed them a few days ago as part of the MQ setup as is described in another JMS resource adapter demo (see references at bottom of this reply) but I thought that doing it once was enough. Well, it seems that you have to execute those commands each time you start MQ!
I executed them (again), as you kindly suggested in your last response and voila, it worked!... well sort of.
After starting the clients, I get the following random error in oc4j:
06/07/21 15:39:18 Got message: PING
06/07/21 15:39:18 randomly testing rollback:
06/07/21 15:39:18 sending a junk message
06/07/21 15:39:18 Sent message: Invalid junk message
06/07/21 15:39:18 marking transaction for rollback
06/07/21 15:39:18 sending a junk message
06/07/21 15:39:18 Sent message: Invalid junk message
2006-07-21 15:39:18.921 WARNING J2EE JTA0107 Error in resource driver during rol
lback: javax.transaction.xa.XAException: XA operation failed, see errorCode
2006-07-21 15:39:18.921 WARNING J2EE JTA0104 Failed to add the resource due to e
rror in the resource : javax.transaction.xa.XAException: Attempt to start transa
ction while transaction Xid( Global Id c0.a7.ff.20.b0.22.00.00.0c.00.00.00.00.00
.00.00.00.00.00.00.00.00.00.00, Format Id 4660, Branch Id 7d.20.c6.d9.00.00.00.0
0.00.00.00.00.00.00.00.00) is active. errorcode : -6 : Enlistment of resource fa
iled. Attempt to start transaction while transaction Xid( Global Id c0.a7.ff.20.
b0.22.00.00.0c.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00, Format Id 4660, Bra
nch Id 7d.20.c6.d9.00.00.00.00.00.00.00.00.00.00.00.00) is active.
followed, after a few seconds, by the following stack trace:
06/07/21 16:13:30 Got message: PING
06/07/21 16:13:30 MQJMS3011: Failed to publish message to MQ queue
06/07/21 16:13:30 javax.jms.JMSException: MQJMS3011: Failed to publish message t
o MQ queue
06/07/21 16:13:30 at com.ibm.mq.jms.services.ConfigEnvironment.newExceptio
n(ConfigEnvironment.java:553)
06/07/21 16:13:30 at com.ibm.mq.jms.MQMessageProducer.publish(MQMessagePro
ducer.java:1855)
06/07/21 16:13:30 at com.ibm.mq.jms.MQMessageProducer.send(MQMessageProduc
er.java:976)
06/07/21 16:13:30 at com.ibm.mq.jms.MQMessageProducer.send(MQMessageProduc
er.java:1056)
06/07/21 16:13:30 at oracle.j2ee.ra.jms.generic.CommonProducerWrapper.send
(CommonProducerWrapper.java:121)
06/07/21 16:13:30 at MyChannel.send(MyChannel.java:73)
06/07/21 16:13:30 at Dealer.onMessage(Dealer.java:210)
06/07/21 16:13:30 at sun.reflect.NativeMethodAccessorImpl.invoke0(Native M
ethod)
06/07/21 16:13:30 at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMet
hodAccessorImpl.java:39)
06/07/21 16:13:30 at sun.reflect.DelegatingMethodAccessorImpl.invoke(Deleg
atingMethodAccessorImpl.java:25)
06/07/21 16:13:30 at java.lang.reflect.Method.invoke(Method.java:585)
06/07/21 16:13:30 at com.evermind.server.ejb.interceptor.joinpoint.EJBJoin
PointImpl.invoke(EJBJoinPointImpl.java:35)
06/07/21 16:13:30 at com.evermind.server.ejb.interceptor.InvocationContext
Impl.proceed(InvocationContextImpl.java:69)
06/07/21 16:13:30 at com.evermind.server.ejb.interceptor.system.DMSInterce
ptor.invoke(DMSInterceptor.java:52)
06/07/21 16:13:30 at com.evermind.server.ejb.interceptor.InvocationContext
Impl.proceed(InvocationContextImpl.java:69)
06/07/21 16:13:30 at com.evermind.server.ejb.interceptor.system.SetContext
ActionInterceptor.invoke(SetContextActionInterceptor.java:34)
06/07/21 16:13:30 at com.evermind.server.ejb.interceptor.InvocationContext
Impl.proceed(InvocationContextImpl.java:69)
06/07/21 16:13:30 at oracle.j2ee.connector.messageinflow.MessageEndpointIm
pl.invokeMessageInflowCallbacks(MessageEndpointImpl.java:294)
06/07/21 16:13:30 at MessageListener_MessageEndpoint1.onMessage(MessageLis
tener_MessageEndpoint1.java:39)
06/07/21 16:13:30 at oracle.j2ee.ra.jms.generic.WorkConsumer.run(WorkConsu
mer.java:237)
06/07/21 16:13:30 at oracle.j2ee.connector.work.WorkWrapper.runTargetWork(
WorkWrapper.java:242)
06/07/21 16:13:30 at oracle.j2ee.connector.work.WorkWrapper.doWork(WorkWra
pper.java:215)
06/07/21 16:13:30 at oracle.j2ee.connector.work.WorkWrapper.run(WorkWrappe
r.java:190)
06/07/21 16:13:30 at EDU.oswego.cs.dl.util.concurrent.PooledExecutor$Worke
r.run(PooledExecutor.java:814)
06/07/21 16:13:30 at java.lang.Thread.run(Thread.java:595)
In the Dealer code, I found a piece of code that randomly generating a junk message and marking the transaction for rollback. If I comment out this code, everything works fine.
So, even when I managed to make the demo work, the transactional stuff is not working.
It would be really nice to know what is going on, but I'm tired, its fiday and I'm clueless...
Now, for the "Unable to load message properties file - mqji(xx).properties", it is still showing up, but as you said, MQ seems to work fine.
Thank you very much again Jeff for your invaluable and extremely responsive help.
References:
I can't seem to find an demo that was very useful for me for setting up MQ in the Oracle site, but the direct links seem to still be working:
http://www.oracle.com/technology/tech/java/oc4j/1003/how_to/jcajmsmq/doc/readme.html
http://www.oracle.com/technology/tech/java/oc4j/1003/how_to/jcajmsmq/doc/Install.html
and the sample code and scripts:
http://otn.oracle.com/tech/java/oc4j/1003/how_to/jcajmsmq.zip
Message was edited by:
pablokrause

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Hi
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Quote from: Wonkanoby on 19-June-05, 21:26:02
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Does AVL table supports popin in WebDynpro ABAP

Hi,
Just a short question, does AVL table supports popin in WebDynpro ABAP?
I know that popin in supported in normal table in WD ABAP. Is this feature also available for ALV table?
Thanks
Yingzhi

Hi Yingzhi Liu,
Did you get any answers to this question?
I'm also trying the same where we need to show additional details for an ALV table row. Is it possible to have a table popin in ALV? We are on 2004s release and implementing Web Dynpro for ABAP.

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