PaaS Partner Community

  • March 3, 2016

BPM 12c Events (Part 3 of 3): Intermediate Events by Antonis Antoniou

Juergen Kress
PaaS Partner Adoption

clip_image001The third and last set of events are referred to as "Intermediate Events" and as the name implies they can occur between the start events and end events.
"Intermediate Events" are sub-classified into two groups, "Catch Events" and "Throw Events".
"Catch Events" can occur anywhere in the middle of the process and what they do is that they block the process for specific conditions. We do have a variety of "Catch Event" activities such as a "Catch Message", a "Catch Timer" and a "Catch Signal" activity.
The "Catch Timer" event provides a delay mechanism in a process flow. The delay can be based on a specific date and time or on a recurring interval, for example, every day at a specific time.

The "Catch Message" activity is also used to model a request-response and receive-reply patterns. It is equivalent to a BPEL receive, so instead of having a "Send Activity" to call a service or a process and a "Receive Activity" to receive the response from a service or a process, you can use a "Throw Message" and a "Catch Message" respectively. Read the complete article here.

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