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

 

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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About Jürgen Kress
As a middleware expert Jürgen works at Oracle EMEA Alliances and Channels, responsible for Oracle’s EMEA Fusion Middleware partner business. He is the founder of the Oracle SOA & BPM and the WebLogic Partner Communities and the global Oracle Partner Advisory Councils. With more than 5000 members from all over the world the Middleware Partner Community is the most successful and active community at Oracle. Jürgen manages the community with monthly newsletters, webcasts and conferences. He hosts his annual Fusion Middleware Partner Community Forums and the Fusion Middleware Summer Camps, where more than 200 partners get product updates, roadmap insights and hands-on trainings. Supplemented by many web 2.0 tools like twitter, discussion forums, online communities, blogs and wikis. For the SOA & Cloud Symposium by Thomas Erl, Jürgen is a member of the steering board. He is also a frequent speaker at conferences like the SOA & BPM Integration Days, JAX, UKOUG, OUGN, or OOP.

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