org.apache.flink.streaming.examples.wordcount

Class PojoExample

java.lang.Object

org.apache.flink.streaming.examples.wordcount.PojoExample

public class PojoExample
extends Object

This example shows an implementation of WordCount without using the Tuple2 type, but a custom class.

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

This example shows how to:

• use POJO data types,
• write a simple Flink program,
• write and use user-defined functions.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	PojoExample.Tokenizer Implements the string tokenizer that splits sentences into words as a user-defined FlatMapFunction.
static class	PojoExample.Word This is the POJO (Plain Old Java Object) that is being used for all the operations.

Constructor Summary

Constructors

Constructor and Description
PojoExample()

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

PojoExample

public PojoExample()

Method Detail

main

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

Throws:

Exception