:RETRIEVE

Purpose

Processes a query without first activating backward-chaining rules. This may save time if you know that the value is already in the KB.

Parameters

clause: A query to be evaluated.

Examples

  (:RETRIEVE (Color Kermit ?color))

Success criteria

Succeeds if the clause succeeds.

Failure criteria

Fails if the clause fails.

Notes

Algernon guarantees that rules will only be activated once for each set of duplicate queries, so the :RETRIEVE command does not save time in rule processing. However, it will save the tiny amount of time that it takes to figure out that the query has previously been asked. See the documentation on rule continuations.

Related commands

None.

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