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TIBCO BusinessEvents® Enterprise Edition 6.3.1

# Event Preprocessor and the Rete Network

Since this project uses Cache Only mode, after each RTC the data created in the agent is saved to the cache and removed from the Rete network.

Before the next RTC, therefore, you must reload any data needed by any rules that will be triggered in the RTC. This is generally done using the event preprocessor rule function, as it is the presence of event data that triggers most rules.

## Learning Points

Loading data from cache into the Rete does not trigger rules
At least not in the way it would if the data was newly arriving in an event. In conjunction with other data, however, the presence of the loaded data can trigger rules, in the usual way.

## More Information

In TIBCO BusinessEvents Architect Guide see the following:

- Cache Modes and Project Design.
- Understanding Conflict Resolution and Run to Completion Cycles.

See also TIBCO BusinessEvents Cache Fundamentals to understand more about cache modes.

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TIBCO BusinessEvents® Enterprise Edition

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