org.apache.flink.streaming.examples.wordcount

Class WordCount

java.lang.Object

org.apache.flink.streaming.examples.wordcount.WordCount

public class WordCount
extends Object

Implements the "WordCount" program that computes a simple word occurrence histogram over text files in a streaming fashion.

The input is a plain text file with lines separated by newline characters.

Usage: WordCount <text path> <result path>
If no parameters are provided, the program is run with default data from WordCountData.

This example shows how to:

• write a simple Flink Streaming program.
• use Tuple data types.
• write and use user-defined functions.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	WordCount.Tokenizer Implements the string tokenizer that splits sentences into words as a user-defined FlatMapFunction.

Constructor Summary

Constructors

Constructor and Description
WordCount()

Method Summary

Modifier and Type	Method and Description
static void	main(String[] args)

Methods inherited from class java.lang.Object

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

Constructor Detail

WordCount

public WordCount()

Method Detail

main

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

Throws:

Exception