How to enqueue message in a queue
Hi,
Can someone please help me by posting the PL/SQL or Stored procedure to "enqueue message" in a queue, which i am going to run in a dbms_scheduler at specific time.
Thankyou.
You can use the following procedure :
DBMS_AQ.ENQUEUE (
queue_name IN VARCHAR2,
enqueue_options IN enqueue_options_t,
message_properties IN message_properties_t,
payload IN "<ADT_1>",
msgid OUT RAW);
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I need to send messages to the default queue(demoQueue) available in the server using a JMS adapter in a BPEL process.
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I am also using Hermes v1.0 to monitor the queue but it says that it dint receive any messages in the queue to read.
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Message was edited by: prince
the_princeYou can use the following procedure :
DBMS_AQ.ENQUEUE (
queue_name IN VARCHAR2,
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I have Confiured a JMS configaration in spring applicationConfiguaration.xml file
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<bean id="listenerContainer" class="org.springframework.jms.listener.SimpleMessageListenerContainer">
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Sender is sedning messages continusly messages that messages r storing in queue , these r acupying more memory in RAM , due to that jboss is restarting for each request, is there any way to clean up messages in Queue ? if it is there then how will configure that queue in apllicationConfiguaration.xml file?
Thanks in advance
NaraHi,
Even i have a similar kind of requirement where in, i want to clear the JMS Queue Message programmatically, on certain condition.
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Manjunath. -
Does somebody has working example how retrieve ALL message ids from queue
hello,
i'm having problems retrievieng all message id's from queue using APPQ_MIB. Point
is that i can't get cursor variable work. Somebody possibly has working example
or knows how it is done in qmadmin? I'm using Tuxedo 8.0.The default CURSORHOLD time is 120 seconds. Are you making your second
request within that time? And make sure that you change TA_OPERATION to
GETNEXT.
Janis Kovalevskis wrote:
Actually there is no debugging required it is enough to use ud32. I created sample
file (see attach), where is what i'm sending to MIB. For Part 1 everything is
fine- i get first ~200 message id's and cursor variable, but when i send Part
2 (substituting TA_CURSOR with returned value) nothing happens. Returned buffer
is something like:
TA_ERROR 0
TA_MORE 0
TA_OCCURS 0
TA_CLASS T_APPQMSG
You can even send cursor variable TA_CURSOR like: "..TMIB0: 0x99999999" and same
response will be returned.
It seems T_APPQMSG is just ignoring those cursors and thats all. Any ideas?
Scott Orshan <[email protected]> wrote:
I think it would be easier for us to debug what you have than to write
a
new example from scratch. Please post a code sample that is not working
for you. Make sure you use GETNEXT is you are using the cursor.
Scott Orshan
Janis Kovalevskis wrote:
hello,
i'm having problems retrievieng all message id's from queue using APPQ_MIB.Point
is that i can't get cursor variable work. Somebody possibly has workingexample
or knows how it is done in qmadmin? I'm using Tuxedo 8.0.------------------------------------------------------------------------
-- Part 1 --
SRVCNM .TMIB
TA_CLASS T_APPQMSG
TA_OPERATION GET
TA_LMID SITE1
TA_QMCONFIG /ora4/iia/cfg/QUE
TA_APPQSPACENAME QSPACE
TA_APPQNAME STIP_ISS_SAF
TA_CURSORHOLD 300
-- Part 2 --
SRVCNM .TMIB
TA_CLASS T_APPQMSG
TA_OPERATION GETNEXT
TA_CURSOR ..TMIB0: 0x12345678
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How to view messages in Jms queue from OEM 12c Cloud Control
Hi All,
How can I view messages in a Jms queue from OEM 12c Cloud Control without logging into WebLogic Administration Console?
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How to dequeue messages that were enqueued when app was offline
I have 2 question. The following is the scenario -
I have 2 different process. Process A and Process B.
Process A enqueue's the message in the message queue.
Process B dequeue's the message from the message queue.
1) Process B shuts down for some time but Process A continues to enqueue the message in the queue. When Process B comes back live how to dequeue the messages in the message queue that were posted by Process A when Process B was offline?
2) The queue that I am using is multiple consumer queue as there needs to be more than 1 Process B to dequeue the message. The logic behind the design is if one of the process B dies the other process B can still continue to process. At the same time if 1 instance of Process B has picked up a message it should notify other Process B to not process the message.
I coudn't find any samples. Any help is greatly appreciated.Hello,
The messages that process A enqueues and are not consumed while process B is down will remain in the queue until process B restarts.
It sounds as though you don't need to use a multi-consumer queue as all you appear to want to do is consume the messages as quickly as possible. Is that correct? If it is you could have multiple process Bs consuming messages from the same single consumer queue. Messages that one process is consuming will not be available to another and this is handled internally.
You can also have multiple processes consuming messages associated with the same consumer on a multi-cosnumer queue and the same applied.
Or you could have multiple processes on a multi-consumer queue associated with different subscribers which are all interested in the same message.
What you use depends on what your design requires but each message will be consumed only once in the case of a single consumer queue and only once per subscriber/recipient in a multi-consumer queue.
Thanks
Peter -
I need to enqueue xml files.How can I do this?(I need to use the JMS interfaces)
I am able to create a topic connection and session.I am unable to figure out how to create a ObjectPayload with the xml mesage in it.
I have created the necessary queue by running the following scripts:
CREATE TYPE queue_message_type AS XMLType ;
EXEC DBMS_AQADM.CREATE_QUEUE_TABLE (queue_table => 'multi_message_xml_table', queue_payload_type => 'SYS.XMLTYPE', multiple_consumers => TRUE);
EXEC DBMS_AQADM.CREATE_QUEUE (queue_name => 'multi_xml_queue', queue_table => 'multi_message_xml_table');
EXEC DBMS_AQADM.START_QUEUE (queue_name => 'multi_xml_queue');
Thanks,
MahimaJust to follow up with some other information.
I created an AQ queue with AQ$_JMS_MESSAGE as payload type. Only, JDeveloper doen't recognize this queue when trying to create an AQ adapter in an ESB or BPEL project. It says it only supports RAW or OBJECT payload types. This seems like a bug; also see: ESB 10.1.3.1 Not Connecting to AQ QUEUE with error
So I changed the payload type to SYS.XMLType and it works fine.
The PL/SQL trigger I use to enqueue messages is:
CREATE OR REPLACE TRIGGER JMSUSER.AIT_TEST AFTER INSERT ON JMSUSER.TEST_AQ_TABEL FOR each row
declare
msg SYS.XMLType;
queue_options DBMS_AQ.ENQUEUE_OPTIONS_T;
msg_props DBMS_AQ.MESSAGE_PROPERTIES_T;
msg_id RAW(16);
Begin
msg := SYS.XMLType.createXML('<?xml version="1.0"?>' || '<id xmlns="http://www.approach-alliance.com">' || :new.ID || '</id>');
DBMS_AQ.ENQUEUE(
queue_name => 'TESTXML_QUEUE',
enqueue_options => queue_options,
message_properties => msg_props,
payload => msg,
msgid => msg_id);
end ;
I can then create an AQ adapter in the ESB and transform and/or route the XML content as desired.
Regards,
Ronald -
How to send message to a multi-consumer queue using pl/sql
How to send message to a multi-consumer queue using pl/sql ? Thanks.
I tried following, but got an message: no receipient specified.
DBMS_AQ.ENQUEUE(
queue_name => 'aqadm.multi_queue',
enqueue_options => queue_options,
message_properties => message_properties,
payload => my_message,
msgid => message_id);
COMMIT;
END;
/Here's two way to enqueue/publish new message into multi-consumer queue.
(1) Use explicitly declared recipient list
- Specify "Recipients" by setting recipient_list to messge_properties, before ENQUEUE().
DECLARE
recipients DBMS_AQ.aq$_recipient_list_t;
BEGIN
recipients(1) := sys.aq$_agent('RECIPIENTNAME',NULL,NULL);
message_properties.recipient_list := recipients ;
(2)Or, declare subscriber list permanently. Then you need not to specify recipient list each time you call ENQUEUE().
begin
dbms_aqadm.add_subscriber(
queue_name=>'YOURQUEUE',
subscriber=> sys.aq$_agent('RECIPIENTNAME', null, null)
end;
You can add 1024 local subscriber include maximum 32 remote-queue-consumer to one queue. -
How to set up the maximum number of messages on a queue programmatically
Hi,
I am using IMQ 3.5 to implement a message layer for one of my projects. I created a "Job Status Queue", which receives job status report from a java application every minute. But I just want to keep the most current status report instead of all the job running history. How can I restrict the maximum number of messages to 1 programmatically?
Any suggestion or help will be appreciated.
Xiaoyun TangYou can't limit the destination size programmatically, but you can do it administratively and associate a behavior to occur when the limit is reached. In your case it sounds like you want a queue, 1 message deep, and to discard the oldest message when the queue is full. When you create the physical queue on the broker you can specify these attributes (you can also update them on an existing queue). For example:
imqcmd create dst -t q -n StatusQ -o maxNumMsgs=1 -o limitBehavior=REMOVE_OLDESTFor more information see Chapter 6 of the Message Queue Administration Guide. In particular the "Managing Destinations" section:
http://docs.sun.com/app/docs/coll/MessageQueue_35_SP1
Joe -
How do i find the number of messages in a queue
Sorry if this is too trivial, but i haven't been able to figure out how to determine the number of messages in a queue. business case being that i can only have 3 messages in the send queue, so i need to stop sending if there are 3 outstanding messages still in the send queue.
Can someone point the way?
Thanks,
NileshHi,
To get the depth using JMS you must create a QueueBrowse and browse the entire queue. Its generally horribly inefficient if you want to do it with any regularity.
In Hermes I have had to write plugins that open separate connections to providers using their non-JMS APIs or JMX and get that kind of information that way.
Look at the getDepth() method in this JBoss plugin for an example that uses JMX:
http://cvs.sourceforge.net/viewcvs.py/hermesjms/Hermes4/src/java/hermes/ext/jbossmq/JBossMQAdmin.java?view=markup
And here is one for WebSphereMQ that uses one of its many APIs..
http://cvs.sourceforge.net/viewcvs.py/hermesjms/Hermes4/src/java/hermes/ext/mq/MQSeriesAdmin.java?view=markup
Colin.
http://hermesjms.com -
How can a JMS adapter be configured in BPEL to consume messages from multiple queues ?
How can a JMS adapter be configured in BPEL to consume messages from multiple queues ?
If you want to use JMS with AQ as datastore then there is some configuration you need to do to enable this. This is outside SOA Suite per sa, e.g. no adapter required.
If you want to connect to the AQ direct then use the AQ adapter.
this blog may be of some help understand the configuration
http://biemond.blogspot.com/2008/01/oracle-jms-with-esb-and-bpel.html
cheers
James -
How to consume message with queue payload type 'SYS.AQ$_JMS' in BPEL
In oracle database
1. created a queue table with multi consumer, queue_payload_type => 'SYS.AQ$_JMS_OBJECT_MESSAGE' .
2. created a queue using this queue table.
3. started the queue.
4. From java class, published a message into this queue.
Now when I try to access this queue from bpel using AQ adapters, not able to see the queue name. But if I try to consume from java, it is working fine.
Please let me know how we need to access from bpel the messages that are not of xml type and are user defined objects.
ThanksHi
Thank You for your information,
I have seen that link which you have provided. Here they have given a example in which they are using Database messaging, i am working on memory/file based messaging.
I am using default JMS Queue (jms/demoQueue) and default Connection Factory (jms/QueueConnectionFactory) which is provided by default in the server. With these i am trying to push message from process to the Queue.
From other process i am trying to receive a message.
For default Queue and Connection factory, i think we dont need to configure any of the xml files.
Please try to use default Queue and Connection Factory to recevie a message from the Queue. Use two different process to develop this.
Thank You
Rgards
Reddy
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