Uses of Interface
org.apache.flink.api.common.functions.AggregateFunction

Packages that use AggregateFunction

Package	Description
org.apache.flink.api.common.functions
org.apache.flink.api.common.state
org.apache.flink.api.java.typeutils

Uses of AggregateFunction in org.apache.flink.api.common.functions

Classes in org.apache.flink.api.common.functions that implement AggregateFunction

Modifier and Type	Class and Description
class	RichAggregateFunction<IN,ACC,OUT> Rich variant of the AggregateFunction.

Uses of AggregateFunction in org.apache.flink.api.common.state

Methods in org.apache.flink.api.common.state that return AggregateFunction

Modifier and Type	Method and Description
AggregateFunction<IN,ACC,OUT>	AggregatingStateDescriptor.getAggregateFunction() Returns the aggregate function to be used for the state.

Constructors in org.apache.flink.api.common.state with parameters of type AggregateFunction

Constructor and Description
AggregatingStateDescriptor(String name, AggregateFunction<IN,ACC,OUT> aggFunction, Class<ACC> stateType) Creates a new state descriptor with the given name, function, and type.
AggregatingStateDescriptor(String name, AggregateFunction<IN,ACC,OUT> aggFunction, TypeInformation<ACC> stateType) Creates a new ReducingStateDescriptor with the given name and default value.
AggregatingStateDescriptor(String name, AggregateFunction<IN,ACC,OUT> aggFunction, TypeSerializer<ACC> typeSerializer) Creates a new ValueStateDescriptor with the given name and default value.

Uses of AggregateFunction in org.apache.flink.api.java.typeutils

Methods in org.apache.flink.api.java.typeutils with parameters of type AggregateFunction

Modifier and Type	Method and Description
static <IN,ACC> TypeInformation<ACC>	TypeExtractor.getAggregateFunctionAccumulatorType(AggregateFunction<IN,ACC,?> function, TypeInformation<IN> inType, String functionName, boolean allowMissing)
static <IN,OUT> TypeInformation<OUT>	TypeExtractor.getAggregateFunctionReturnType(AggregateFunction<IN,?,OUT> function, TypeInformation<IN> inType, String functionName, boolean allowMissing)