[This topic is pre-release documentation and is subject to change in future releases. Blank topics are included as placeholders.]
Returns the aggregation state prototype for use in grouping aggregation states per group-by keys.
Namespace: net.esper.eql.expression
Assembly:
NEsper (in NEsper.dll)
Syntax
Visual Basic (Declaration) |
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Public Overrides ReadOnly Property AggregationFunction As Aggregator |
C# |
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public override Aggregator AggregationFunction { get; } |
Field Value
Return Value
prototype aggregation state as a factory for aggregation states per group-by key value