接口的使用
org.apache.flink.streaming.api.functions.co.CoMapFunction

使用CoMapFunction的程序包

程序包	说明
org.apache.flink.streaming.api.datastream
org.apache.flink.streaming.api.functions.co
org.apache.flink.streaming.api.operators.co

org.apache.flink.streaming.api.datastream中CoMapFunction的使用

参数类型为CoMapFunction的org.apache.flink.streaming.api.datastream中的方法

限定符和类型	方法和说明
<R> SingleOutputStreamOperator<R>	ConnectedStreams.map(CoMapFunction<IN1,IN2,R> coMapper) Applies a CoMap transformation on a ConnectedStreams and maps the output to a common type.
<R> SingleOutputStreamOperator<R>	ConnectedStreams.map(CoMapFunction<IN1,IN2,R> coMapper, org.apache.flink.api.common.typeinfo.TypeInformation<R> outputType) Applies a CoMap transformation on a ConnectedStreams and maps the output to a common type.

org.apache.flink.streaming.api.functions.co中CoMapFunction的使用

实现CoMapFunction的org.apache.flink.streaming.api.functions.co中的类

限定符和类型	类和说明
class	RichCoMapFunction<IN1,IN2,OUT> A RichCoMapFunction represents a Map transformation with two different input types.

org.apache.flink.streaming.api.operators.co中CoMapFunction的使用

参数类型为CoMapFunction的org.apache.flink.streaming.api.operators.co中的构造器

构造器和说明
CoStreamMap(CoMapFunction<IN1,IN2,OUT> mapper)