Starting Application using IBM MQ Triggering
Here in this blog, we will learn about starting application using IBM MQ triggering.
Description:
Application triggering in IBM MQ is the feature that enables the application to respond dynamically with the arrival of a message to the queue. When the trigger event occurs such as the arrival of a new message on a queue, the Queue manager can trigger the application to process the message.
The process of Application triggering involves several steps like creating initiation queues, creating Process Definition, etc.
At first, when the local queue is configured with trigger rules like trigger control, trigger type(i.e. First, Depth, Every ), and trigger depth which means a trigger event has occurred. When a trigger event occurs, a trigger message is generated and placed in the initiation queue by the queue manager.This trigger message is not persistent.
The trigger monitor program processes the trigger message which is in the initiation queue and takes the appropriate action based on the information of the trigger message which is mostly the starting of the application.
If the trigger is enabled, we have to create the Process Definition Object which has the information of the application to be processed. By using this information, the Trigger monitor program processes the application to start and makes the application retrieve the message arriving from the designated local queue, process the messages, and perform any necessary actions based on business logic.
Benefits of Application triggering
- Event-driven architecture – Applications can be triggered based on specific events or conditions, such as the arrival of new messages, the availability of messages on a queue, or the passage of time.
- Eliminates continuous monitoring – Application triggering eliminates the need for applications to monitor queues continuously for new messages, reducing resource consumption and improving system efficiency.
- Application triggering is commonly used in scenarios where applications need to process messages asynchronously and respond to changes in message queue activity.
