SimpleTypedAggregateExpression¶

SimpleTypedAggregateExpression is <> when...FIXME

[[internal-registries]] .SimpleTypedAggregateExpression's Internal Properties (e.g. Registries, Counters and Flags) [cols="1m,2",options="header",width="100%"] |=== | Name | Description

| evaluateExpression | [[evaluateExpression]] <>

| resultObjToRow | [[resultObjToRow]] UnsafeProjection |===

Creating Instance¶

SimpleTypedAggregateExpression takes the following when created:

• [[aggregator]] Aggregator
• [[inputDeserializer]] Optional input deserializer expression
• [[inputClass]] Optional Java class for the input
• [[inputSchema]] Optional schema for the input
• [[bufferSerializer]] Buffer serializer (as a collection of expressions/NamedExpression.md[named expressions])
• [[bufferDeserializer]] Buffer deserializer Expression.md[expression]
• [[outputSerializer]] Output serializer (as a collection of Expression.md[expressions])
• [[dataType]] DataType
• [[nullable]] nullable flag