程序包的使用
org.apache.flink.streaming.api.functions.aggregation

使用org.apache.flink.streaming.api.functions.aggregation的程序包

程序包	说明
org.apache.flink.streaming.api.datastream
org.apache.flink.streaming.api.functions.aggregation

org.apache.flink.streaming.api.datastream使用的org.apache.flink.streaming.api.functions.aggregation中的类

类和说明
AggregationFunction Holder class for aggregation types that can be used on a windowed stream or keyed stream.

org.apache.flink.streaming.api.functions.aggregation使用的org.apache.flink.streaming.api.functions.aggregation中的类

类和说明
AggregationFunction Holder class for aggregation types that can be used on a windowed stream or keyed stream.
AggregationFunction.AggregationType Aggregation types that can be used on a windowed stream or keyed stream.
Comparator Internal comparator implementation, for use with ComparableAggregator.
SumFunction Internal function for summing up contents of fields.