Apama Documentation : Developing Apama Applications : Developing Apama Applications in EPL : Working with Streams and Stream Queries : Using dynamic expressions in stream queries : Understanding when the correlator evaluates particular expressions
Understanding when the correlator evaluates particular expressions
 
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All expressions in a stream query can contain dynamic elements. To understand the behavior of a query that specifies dynamic elements, it is necessary to know under what circumstances the correlator re-evaluates an expression and uses the result in the query.
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