程序包 org.apache.flink.api.java.aggregation

接口概要

接口	说明
AggregationFunctionFactory	Interface of factory for creating AggregationFunction.

类概要

类	说明
AggregationFunction<T>
MaxAggregationFunction<T extends Comparable<T>>	Implementation of AggregationFunction for max operation.
MaxAggregationFunction.MaxAggregationFunctionFactory	Factory for MaxAggregationFunction.
MinAggregationFunction<T extends Comparable<T>>	Implementations of AggregationFunction for min operation.
MinAggregationFunction.MinAggregationFunctionFactory	Factory for MinAggregationFunction.
SumAggregationFunction<T>	Definitions of sum functions for different numerical types.
SumAggregationFunction.SumAggregationFunctionFactory	Factory for SumAggregationFunction.

枚举概要

枚举	说明
Aggregations	已过时 All Flink DataSet APIs are deprecated since Flink 1.18 and will be removed in a future Flink major version.

异常错误概要

异常错误	说明
UnsupportedAggregationTypeException	已过时 All Flink DataSet APIs are deprecated since Flink 1.18 and will be removed in a future Flink major version.