Package org.apache.pulsar.functions.api.examples.window

Class WordCountWindowFunction

java.lang.Object

org.apache.pulsar.functions.api.examples.window.WordCountWindowFunction

All Implemented Interfaces:

org.apache.pulsar.functions.api.WindowFunction<String,Void>

public class WordCountWindowFunction
extends Object
implements org.apache.pulsar.functions.api.WindowFunction<String,Void>

The classic word count example done using pulsar functions Each input message is a sentence that split into words and each word counted. The built in counter state is used to keep track of the word count in a persistent and consistent manner.

Constructor Summary

Constructors

Constructor	Description
WordCountWindowFunction()

Method Summary

Modifier and Type	Method	Description
Void	process(Collection<org.apache.pulsar.functions.api.Record<String>> inputs, org.apache.pulsar.functions.api.WindowContext context)

Methods inherited from class java.lang.Object

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

Constructor Details

WordCountWindowFunction

public WordCountWindowFunction()

Method Details

process

public Void process(Collection<org.apache.pulsar.functions.api.Record<String>> inputs,
 org.apache.pulsar.functions.api.WindowContext context)
             throws Exception

Specified by:

process in interface org.apache.pulsar.functions.api.WindowFunction<String,Void>

Throws:

Exception