Resolution:
Description:
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How to delete old concepts when the property "be.engine.cluster.preload" is set so that the concept could not be loaded using a Coherence filter function.

Environment:
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BusinessEvents 3.0.2/4.0
All Operating Systems

Symptoms:
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The function Coherence.Query.C_CacheOnlyMode_DeleteConcepts() will not delete concepts only when they exist in the Cache.

Cause:
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Function Coherence.Query.C_CacheOnlyMode_DeleteConcepts() will search for the concepts in Cache only (not in backingstore).

Resolution:
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Three  possible resolutions:

1). Preload existing concepts and delete them using a Coherence function. see: SOL1-9RVQ8X, SOL1-B8ZMA6

2). Create a statemachine for the concept with a timeout for the state and delete the concept when the timeout is reached. It's required to add a Condition (i.e. "1==2") in the transition before the end state.

3). Create a BW process and retrieve the old concepts from the database and send an Event for each concept which fires a rule to load and delete the concept.