AQ Adapter with message selector rule

Hi,
I'm doing a B2B11g implementation on AS2. Incoming messages are processed using the AQ adapter. Now I have several (about 8) AQ-adapter implementations on the IP_IN_QUEUE that select messages using a message-selector-rule based on the DocumentType. So each SOAComposite dequeues and processes the appropriate document.
This works fine, but I'm looking for any performance recommendations on this.
What is the impact on CPU for example using message selector rules? Any do's and don'ts on this?
Thanks in advance.
Regards,
Martien

http://download.oracle.com/docs/cd/B14099_19/integrate.1012/b25307/adptr_aq.htm#CJAEIACG

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Querying messages with message selectors

I have been looking at the JMS 1.1 spec and do not see anything that helps durable subscribers change queries without losing prior messages. If I create a durable subscription with no message selector I receive all messages for the subscribed topic. If I change the durable subscription to use a message selector (for example, "JMSPriority = 9", when I call any of the TopicSubscriber receive calls I lose all previous messages which don't match the selector. Is there any way around this?

Ok. I get what you mean now.
The problem lies in that you double-change the selector.
This, in my opinion (which isn't worth much) calls for a different angle on this problem.
Consider the following:
a) do you absolutely have to have a topic? can't you use a queue (and use a queuebrowser) ?
b) if you must use a topic - can you create two subscribers - one that gets all the messages, and
another onw that only gets those with priority=7?
c) it is bad practice to change the selector of the subscriber at runtime. If you do (as you do) - you are bound to lose messages on the second switch over.
d) can't you just subscribe to all the messages on the same subscriber, and check upon arrival what to do with the message according to the priority?
Now, you probably think - hey, this is silly. But regard this : you are using the selector in a way that was not foreseen (on a topic) by the spec. Why is that? because you want, with the same subscriber, to have two receiving channels (one for regular messages, and then one for "special" messages) - this is not done with one subscriber. This is done with two operating simultaneously.
I mean - if you decide you don't want to rely on the JMS provider to hand you the higher priority messages first - that's ok, but you can't blame it for not holding messages that you don't want any more..
Nimo.

Using AQ adapter with CMEF

Anybody using the Content Management Event Framework (CMEF) from portal to invoke a BPEL process?
I'm only interested in ADD_ITEM events in the queue, and since CMEF seems to put all events in the queue by default, I'd like to filter events to only get the ADD_ITEM ones.
I've tried using a message selector rule on the AQ adapter of: message.action = 'ADD_ITEM' but I'm still getting other events.
-Barry-

After configuring the file adapter, all you need to do is , give the path as a value for the logical name which you have created earlier. That you can do on the file adapter property inspector. There is no need to do anything on the server level. Lemme know
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JDBC Receiver Adapter with Native SQL String

Hi experts
I need to use a JDBC Receiver Adapter with Message Protocol of Native SQL String, but I don´t understand how to create my data type for XML Document Format. I studied the following example from the SAP Library,
INSERT INTO tableName (column-name1, column-name2, column-name3) VALUES(u2018column-value1u2019, u2018column-value2u2019, u2018column-value3u2019)
i´ll be very thankful of your recommendations.

Another simple way is..
Create receiver data structure like this....
<StatementName>
<anyName action=u201DSQL_DMLu201D>
<access>INSERT INTO tableName (column-name1, column-name2, column-name3) VALUES('$column-value1$', '$column-value2$', '$column-value3$')
</access>
<key>
<column-value1>value1</column-value1>
<column-value2>value2<column-value2>
<column-value3>value3<column-value3>
</key>
</anyName >
</StatementName>
Rest are all same.

How to use timestamp based dynamic message selector?

Is it possible with message selector to issue query like statement that
weill fetch any messages that have header timestamp older than "now" + 3 hrs.
In SQL you would say something like:
where timestamp <= sysdate + (180/1440)
Please let ne know.
Thank you,
Edmon

hi edmon,
to my knowledge dynamically evalutaed expressions like this are not supported by any of the JMS vendors. messageselectors are in SQL92 format and the only dynamic part in them is the contents of the message properties and headers.
So, you're out of luck with what you want to do (e.g., remove expired messages from a destination when they havent' been consumed within a time threshold??) but i could see two possible solutions:
1) You could use time-to-live (TTL) on the sender side. Messages that are on the destination beyond their TTL would be placed onto a dead message queue (DMQ) from where you could consume them for further processing. DMQ is not a standard-JMS feature but supported by a few vendorrs (e.g., JBoss, ArjunaMS).
2) You could use Message-driven Services (MDS) for more elaborate server-side message processing. MDS has been pioneered by ArjunaMS but is also available with a few other JMS vendors.
Hope that helps!
Kind regards,
Thomas.

Message selectors

          Two questions:
          1.) Where does the message selector query get executed? Either every subscriber
          gets all messages for the subscribed topic and then runs the selector against
          it, or the server runs the selector on the message before sending it out to the
          subscriber. While it may seem like the latter is preferable, I wonder how much
          performance on the server side will be affected as a result of the server processing
          ALL of the message selectors. If the former is the case, there is obviously more
          network traffic, but the server's processing time is reduced when many messages
          are sent out to many subscribers with message selectors. Does anyone have any
          input on this?
          2.) Are there any plans for Weblogic supporting subscriptions to a hierarchial
          topic? For example, subscribing to cars.* will return messages sent to the topic
          cars.bmw and cars.ford. I know this is not part of the JMS specification, but
          it is a nice addition.
          Thanks.
          Dan


          Tom Barnes <[email protected]> wrote:
          >Hi Dan,
          >
          >Answers in-line.
          >
          >Dan Baumbach wrote:
          >
          >> Two questions:
          >> 1.) Where does the message selector query get executed? Either every
          >subscriber
          >> gets all messages for the subscribed topic and then runs the selector
          >against
          >> it, or the server runs the selector on the message before sending it
          >out to the
          >> subscriber. While it may seem like the latter is preferable, I wonder
          >how much
          >> performance on the server side will be affected as a result of the
          >server processing
          >> ALL of the message selectors. If the former is the case, there is
          >obviously more
          >> network traffic, but the server's processing time is reduced when many
          >messages
          >> are sent out to many subscribers with message selectors. Does anyone
          >have any
          >> input on this?
          >
          >If you use the WL topic multicast extension, the former. The former
          >is the
          >obvious choice using multicast, as the server only has one network call
          >to make per
          >message...
          >
          >Otherwise, the latter. The latter is preferable, as otherwise the
          >server would
          >be making one network call be subscriber per message - which is far more
          >heavy-weight.
          >
          >>
          >>
          >> 2.) Are there any plans for Weblogic supporting subscriptions to a
          >hierarchial
          >> topic?
          >
          >This is under consideration.
          >
          >> For example, subscribing to cars.* will return messages sent to the
          >topic
          >> cars.bmw and cars.ford. I know this is not part of the JMS specification,
          >but
          >> it is a nice addition.
          >
          >Yes, topic hierarchies are not part of the JMS specification, but you
          >can emulate them
          >fairly easily, if somewhat inefficiently, by using JMS selectors with
          >a "like" clause.
          > The publisher sets a correlation-id on the message:
          >msg.setJMSCorrelationID("cars.ford");
          > The subscriber sets its selector to "JMSCorrelationID like 'cars.%'"
          >
          >>
          >>
          >> Thanks.
          >> Dan
          >
          >Tom
          >

JMS Adapter Message Selector Problem...

Hi
I have set the following in the invoke before producing the message and dropping on the queue
<invoke name="Invoke_1" partnerLink="adapt"
portType="ns1:Produce_Message_ptt"
operation="Produce_Message"
inputVariable="Invoke_1_Produce_Message_InputVariable"
bpelx:inputHeaderVariable="Sender"/>
On the receive side I have the message selector configured for the adapter as follows:
<jca:operation
ActivationSpec="oracle.tip.adapter.jms.inbound.JmsConsumeActivationSpec"
DestinationName="dattjndi"
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MessageSelector="Sender=AdaptationRequest"PayloadType="TextMessage"
OpaqueSchema="false" >
</jca:operation>
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Thanks,
Anil

did you check the message selector section on
http://java.sun.com/j2ee/sdk_1.3/techdocs/api/javax/jms/Message.html
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A basic query with respect to using Message Selectors in JMS

Hi
When i am going MEssage Selectors topic in web , it seems very confusing for me .
I have written a simple JMS Application based on Weblogic as my Queue .
I have two Java Files one for Message Producer and another file acting as Message Consumer using MDB
I have a basic TextMessage with some header properties in my Producer file .
Please tell me in what file should i put MessageSelector ??.
Thanks for reading .
Please clarify my query on this .

Thank you very much .
I found the code of a MDB making useage of a Selector .
*<message-driven>*
* <message-selector>shirtType = 'polo'</message-selector>*
* </message-driven>*
Assume that i written a MDB that listens to particular type of Messages (Polo in this case ) .
Please tell me what happens to other messages in the Queue that were never listened by the MDB .
Thank you .

BizTalk 2010 - WCF-Custom Adapter with sqlbinding - rror was encountered while attempting to transmit the message

BizTalk 2010 RTM version with SQL 2008 R2 .
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Is there any update on this please ?
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BizTalk 2010 Enterprise Edition with BizTalk 2010 CU6 and CU3 for BizTalk Adapter Pack works fine , no issues noticed.
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Multiple queue receivers with disjoint message selectors - portable?

Hi all,
I was wondering whether an application that uses multiple queue receivers with disjoint message selectors would be portable across different JMS providers.
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Regards,
Sabine

Hi Nimo,
accepted - as long as the JMS spec requires the JMS provider to support multiple receivers. And that's exactly the point where I'm not sure...
Literally it states:
"For PTP, JMS does not specify the semantics of concurrent QueueReceivers for the same queue; however, JMS does not prohibit a provider from supporting this."
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Synchronous operation with a message selector possible?

I have a situation where the following condition exists:
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- the external system will post the responses to a JMS queue.
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I think I answered my own question. I was confusing a MessageSelector with a MessageListener - two different animals....
I was able to implement the pub/sub with the following syntax:
/* the publisher would put the transaction_id (unique id) in the
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String selector = "JMSCorrelationID = '"+transaction_id+"'";
subscriber = subscriberSession.createSubscriber(topic,selector,true);
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JMS Sender adapter Message selector

Does anyone know of a good blog where someone is showing how to use the JMS message selector option in the JMS sender channel? I'd like a screenshot of what is actually typed into this field most of all.

did you check the message selector section on
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AQ Adapter with message selector rule

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