Im not sure I mentioned a topic, however for clarification jms queue = anycast and jms topic = multicast in general
On 31 March 2017 at 13:30, titou10 [via ActiveMQ] < ml-node+s2283324n4724423...@n4.nabble.com> wrote: > I must admit I'm lost here.. > > The example is from https://activemq.apache.org/ > artemis/docs/2.0.0/address-model.html, section "Point-to-Point Address > multiple > Queues" and there is no question about Topics here > > Do you say that q1 is a Topic from a JMS perspective, even if it is > attached to an "ANYCAST" Address? > > Quoting the section "Mapping JMS Concepts to the Core API" > > "A JMS topic is implemented in core as an address with name=(the topic > name) and with a MULTICAST routing type with zero or more > queues bound to it. Each queue bound to that address represents a topic > subscription.Likewise, a JMS queue is implemented as an > address with name=(the JMS queue name) with an ANYCAST routing type > assocatied with it." > > Please help me understand the rules to determine if an "Artemis Address" > is a JMS Topic or a JMS Queue and also how to determine if > an "Artemis Queue" is a JMS Topic or a JMS Queue because the definition > above is either incomplete or the assumption on q1 are wrong > > Thanks ! > > > > > Le 31/03/2017 à 08:12, andytaylor a écrit : > > > It does adhere to the JMS spec, the destinations are just created > > dynamically not explicitly because of the call.NB mos vendors do this > > > > For the second exception, this is because you send to an address not a > > queue, so it tries to create a new queue under the address q1 which > fails > > because it already exists under address address.foo > > > > On 31 March 2017 at 13:05, titou10 [via ActiveMQ] < > > [hidden email] <http:///user/SendEmail.jtp?type=node&node=4724423&i=0>> > wrote: > > > >> OK... > >> > >> I'm not sure that setting the server in this mode respects the JMS > >> specs...maybe it may be considered as a JMS extension? > >> > >> And what about the ActiveMQQueueExistsException[errorType=QUEUE_EXISTS > >> message=AMQ119019: Queue already exists q1]exception for the > >> second case ? > >> > >> > >> Le 31/03/2017 à 07:51, andytaylor a écrit : > >> > >>> This happens if you have auto create for queues/topics configured on > the > >>> address settings, you can turn this off if you desire > >>> > >>> On 31 March 2017 at 12:17, titou10 [via ActiveMQ] < > >>> [hidden email] <http:///user/SendEmail.jtp?type=node&node=4724421&i=0>> > > >> wrote: > >>>> FYI, same code to an IBM MQ server fails as expected with an > >>>> "UNKNOWN_OBJECT_NAME" on the createProducer() method > >>>> > >>>> com.ibm.mq.MQException: JMSCMQ0001: IBM MQ call failed with compcode > >> '2' > >>>> ('MQCC_FAILED') reason '2085' ('MQRC_UNKNOWN_OBJECT_NAME'). > >>>> at com.ibm.msg.client.wmq.common.internal.Reason. > >>>> createException(Reason.java:203) ~[na:na] > >>>> at com.ibm.msg.client.wmq.internal.WMQMessageProducer. > >>>> checkJmqiCallSuccess(WMQMessageProducer.java:1248) ~[na:na] > >>>> at com.ibm.msg.client.wmq.internal.WMQMessageProducer. > >>>> checkJmqiCallSuccess(WMQMessageProducer.java:1205) ~[na:na] > >>>> at com.ibm.msg.client.wmq.internal.WMQMessageProducer. > >>>> access$800(WMQMessageProducer.java:75) ~[na:na] > >>>> at com.ibm.msg.client.wmq.internal.WMQMessageProducer$ > >>>> SpiIdentifiedProducerShadow.initialise(WMQMessageProducer.java:801) > >>>> ~[na:na] > >>>> at com.ibm.msg.client.wmq.internal.WMQMessageProducer.< > >>>> init>(WMQMessageProducer.java:1181) ~[na:na] > >>>> at com.ibm.msg.client.wmq.internal.WMQSession. > >>>> createProducer(WMQSession.java:1077) ~[na:na] > >>>> at com.ibm.msg.client.jms.internal.JmsSessionImpl. > >>>> createProducer(JmsSessionImpl.java:1498) ~[na:na] > >>>> at com.ibm.mq.jms.MQSession.createProducer(MQSession.java:661) > > >>>> ~[na:na] > >>>> > >>>> > >>>> > >>>> ------------------------------ > >>>> If you reply to this email, your message will be added to the > >> discussion > >>>> below: > >>>> http://activemq.2283324.n4.nabble.com/Artemis-2-0-JMS- > >>>> seems-to-create-an-address-queue-on-jmsSession-createProducer-calls- > >>>> tp4724415p4724416.html > >>>> To start a new topic under ActiveMQ - 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