OIC: How to Force Dehydration in Processes by Jan Kettenis

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This article describes a trick how you can force a Structured Process instance in OIC to dehydrate.

OIC Process uses the database to store its state, which is called dehydration. In contrast, restoring that state from the database is called hydration. Dehydration automatically happens at points where the process may have to wait for a ‘longer’ period of time, for example at a Receive or User activity, or a Timer Catch event. Dehydration is also the point where the transaction of the process instance ends (and a new one starts).

Sometimes you may want to force dehydration. For example, you may have a Structured Process for which the operation to start it should synchronously return some value, while the process performs several other steps before it reaches the first dehydration point, and the transaction ends. The out-of-the-box behavior will be that the start operation will not return a response before it has ended the transaction, which may imply that the consumer has to wait for a relative long time

In the following process model some business data is stored synchronously, and then some other process is started synchronously, making that the transaction does not end before it has reached the End event: Read the complete article here.

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Technorati Tags: SOA Community,Oracle SOA,Oracle BPM,OPN,Jürgen Kress

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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