Package org.apache.flink.streaming.examples.join

Class WindowJoin

java.lang.Object

org.apache.flink.streaming.examples.join.WindowJoin

public class WindowJoin
extends Object

Example illustrating a windowed stream join between two data streams.

The example works on two input streams with pairs (name, grade) and (name, salary) respectively. It joins the streams based on "name" within a configurable window.

The example uses a built-in sample data generator that generates the streams of pairs at a configurable rate.

Constructor Summary

Constructors

Constructor	Description
WindowJoin()

Method Summary

Modifier and Type	Method	Description
static void	main(String[] args)
static org.apache.flink.streaming.api.datastream.DataStream<org.apache.flink.api.java.tuple.Tuple3<String,Integer,Integer>>	runWindowJoin(org.apache.flink.streaming.api.datastream.DataStream<org.apache.flink.api.java.tuple.Tuple2<String,Integer>> grades, org.apache.flink.streaming.api.datastream.DataStream<org.apache.flink.api.java.tuple.Tuple2<String,Integer>> salaries, long windowSize)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details

WindowJoin

public WindowJoin()

Method Details

main

public static void main(String[] args)
                 throws Exception

Throws:

Exception

runWindowJoin

public static org.apache.flink.streaming.api.datastream.DataStream<org.apache.flink.api.java.tuple.Tuple3<String,Integer,Integer>> runWindowJoin(org.apache.flink.streaming.api.datastream.DataStream<org.apache.flink.api.java.tuple.Tuple2<String,Integer>> grades,
 org.apache.flink.streaming.api.datastream.DataStream<org.apache.flink.api.java.tuple.Tuple2<String,Integer>> salaries,
 long windowSize)