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Note

This option appears only when the Destination Type property is selected as "TOPIC" in the Response destination configuration.
If a durable subscriber is already created by this component and the checkbox is deselected, when the CPS is finished, user is provided with an option to remove durable subscription that is created previously. This can be done by providing the administrator credentials of the JMS Server.
Selecting this option enables the user to specify the subscription name.

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Note
This option appears only when the Destination Type property is selected as "TOPIC" in the Response destination configuration and the Is Durable? property is selected.

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Scenario

The Sending a request from JMSRequestor to the JMSReplier. If successful, the plain text message gets processed as output from JMSReplier back to JMSRequestor.

The component is configured to send messages to "PrimaryTopic". A replier is used to resend the request that is sent to it as shown in the figure below.

Sample Input

Below is the sample generated from the Feeder.

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Sample Output

After running the Event Process, output will be displayed in the Display component if the message is successfully sent.

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Useful Tips

When using the Durable Subscriber mode, each message has to be stored by the JMS server either in the database or the file system depending on the vendor before delivery of message to consumer and removed after delivery of message. This has a huge impact on the performance. So as far as possible restrict the use of durable delivery mode unless it is necessary for your application to avoid the overheads involved.
The durable subscription created by this component earlier will become unnecessary if the following gets changed while reconfiguring the component.
- Is Durable property is deselected in Consumer configuration; Subscription name is changed.
- Response Destination Type property is changed from 'Topic' to 'Queue'; ClientID is changed.
Therefore the previous subscription has to be removed to avoid persisting messages in runtimedata.
In JMS Connection Configuration, if the Use specific client ID property is enabled under Connection Properties, a dialog Confirm will appear prompting the user if the durable subscription has to be removed. The user can select "Yes" and then give the admin credentials to remove the previous durable subscription.

Otherwise, the subscription has to be removed manually. For more information on unsubscribing, please refer to Section 29.3 Connecting to Web Management Tool - DurableSubscribers view of FioranoMQ Handbook.

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