org.apache.flink.table.planner.functions.aggfunctions

Class LastValueAggFunction.DoubleLastValueAggFunction

java.lang.Object

org.apache.flink.table.functions.UserDefinedFunction

org.apache.flink.table.functions.UserDefinedAggregateFunction<T,ACC>

org.apache.flink.table.functions.AggregateFunction<T,GenericRowData>

org.apache.flink.table.planner.functions.aggfunctions.LastValueAggFunction<Double>

org.apache.flink.table.planner.functions.aggfunctions.LastValueAggFunction.DoubleLastValueAggFunction

All Implemented Interfaces:

Serializable, FunctionDefinition

Enclosing class:

LastValueAggFunction<T>

public static class LastValueAggFunction.DoubleLastValueAggFunction
extends LastValueAggFunction<Double>

Built-in Double LastValue aggregate function.

See Also:

Serialized Form

Nested Class Summary

Nested classes/interfaces inherited from class org.apache.flink.table.planner.functions.aggfunctions.LastValueAggFunction

LastValueAggFunction.BooleanLastValueAggFunction, LastValueAggFunction.ByteLastValueAggFunction, LastValueAggFunction.DecimalLastValueAggFunction, LastValueAggFunction.DoubleLastValueAggFunction, LastValueAggFunction.FloatLastValueAggFunction, LastValueAggFunction.IntLastValueAggFunction, LastValueAggFunction.LongLastValueAggFunction, LastValueAggFunction.ShortLastValueAggFunction, LastValueAggFunction.StringLastValueAggFunction

Constructor Summary

Constructors

Constructor and Description
DoubleLastValueAggFunction()

Method Summary

Modifier and Type	Method and Description
TypeInformation<Double>	getResultType() Returns the TypeInformation of the UserDefinedAggregateFunction's result.

Methods inherited from class org.apache.flink.table.planner.functions.aggfunctions.LastValueAggFunction

accumulate, accumulate, createAccumulator, getAccumulatorType, getValue, isDeterministic, resetAccumulator

Methods inherited from class org.apache.flink.table.functions.AggregateFunction

getKind, getRequirements, getTypeInference, requiresOver

Methods inherited from class org.apache.flink.table.functions.UserDefinedFunction

close, functionIdentifier, open, toString

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Detail

DoubleLastValueAggFunction

public DoubleLastValueAggFunction()

Method Detail

getResultType

public TypeInformation<Double> getResultType()

Description copied from class: UserDefinedAggregateFunction

Returns the TypeInformation of the UserDefinedAggregateFunction's result.

Overrides:

getResultType in class UserDefinedAggregateFunction<Double,GenericRowData>

Returns:

The TypeInformation of the UserDefinedAggregateFunction's result or null if the result type should be automatically inferred.