接口的使用
org.apache.flink.streaming.runtime.operators.windowing.KeyMap.LazyFactory

使用KeyMap.LazyFactory的程序包

程序包	说明
org.apache.flink.streaming.runtime.operators.windowing	This package contains the operators that implement the various window operations on data streams.

org.apache.flink.streaming.runtime.operators.windowing中KeyMap.LazyFactory的使用

参数类型为KeyMap.LazyFactory的org.apache.flink.streaming.runtime.operators.windowing中的方法

限定符和类型	方法和说明
V	KeyMap.putIfAbsent(K key, KeyMap.LazyFactory<V> factory) Inserts a value for the given key, if no value is yet contained for that key.