org.apache.beam.runners.twister2.examples

Class WordCount

java.lang.Object

org.apache.beam.runners.twister2.examples.WordCount

All Implemented Interfaces:

Twister2Worker, java.io.Serializable

public class WordCount
extends java.lang.Object
implements java.io.Serializable, Twister2Worker

See Also:

Serialized Form

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	WordCount.CountWords A PTransform that converts a PCollection containing lines of text into a PCollection of formatted word counts.
static class	WordCount.FormatAsTextFn A SimpleFunction that converts a Word and Count into a printable string.
static interface	WordCount.WordCountOptions Options supported by WordCount.

Field Summary

Fields

Modifier and Type	Field and Description
static java.lang.String	TOKENIZER_PATTERN

Constructor Summary

Constructors

Constructor and Description
WordCount()

Method Summary

Modifier and Type	Method and Description
void	execute(WorkerEnvironment workerEnv) This is the main point of entry for Twister2 jobs.

Methods inherited from class java.lang.Object

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

Field Detail

TOKENIZER_PATTERN

public static final java.lang.String TOKENIZER_PATTERN

See Also:

Constant Field Values

Constructor Detail

WordCount

public WordCount()

Method Detail

execute

public void execute(WorkerEnvironment workerEnv)

Description copied from interface: Twister2Worker

This is the main point of entry for Twister2 jobs. Every job should implement this interface. When a job is submitted, a class implementing this interface gets instantiated and executed by Twister2. As the first thing in the execute method, users are expected to initialize the proper environment object: for batch jobs: BatchTSetEnvironment for streaming jobs: StreamingTSetEnvironment

Specified by:

execute in interface Twister2Worker