public static class FirstValueWithRetractAggFunction.IntFirstValueWithRetractAggFunction extends FirstValueWithRetractAggFunction<Integer>
FirstValueWithRetractAggFunction.BooleanFirstValueWithRetractAggFunction, FirstValueWithRetractAggFunction.ByteFirstValueWithRetractAggFunction, FirstValueWithRetractAggFunction.DecimalFirstValueWithRetractAggFunction, FirstValueWithRetractAggFunction.DoubleFirstValueWithRetractAggFunction, FirstValueWithRetractAggFunction.FloatFirstValueWithRetractAggFunction, FirstValueWithRetractAggFunction.IntFirstValueWithRetractAggFunction, FirstValueWithRetractAggFunction.LongFirstValueWithRetractAggFunction, FirstValueWithRetractAggFunction.ShortFirstValueWithRetractAggFunction, FirstValueWithRetractAggFunction.StringFirstValueWithRetractAggFunction
Constructor and Description |
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IntFirstValueWithRetractAggFunction() |
Modifier and Type | Method and Description |
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protected TypeSerializer<Integer> |
createValueSerializer() |
TypeInformation<Integer> |
getResultType()
Returns the
TypeInformation of the UserDefinedAggregateFunction 's result. |
accumulate, accumulate, createAccumulator, getAccumulatorType, getValue, resetAccumulator, retract, retract
getKind, getRequirements, getTypeInference, requiresOver
close, functionIdentifier, open, toString
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait
isDeterministic
public TypeInformation<Integer> getResultType()
UserDefinedAggregateFunction
TypeInformation
of the UserDefinedAggregateFunction
's result.getResultType
in class UserDefinedAggregateFunction<Integer,GenericRowData>
TypeInformation
of the UserDefinedAggregateFunction
's result or
null
if the result type should be automatically inferred.protected TypeSerializer<Integer> createValueSerializer()
createValueSerializer
in class FirstValueWithRetractAggFunction<Integer>
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