org.apache.beam.examples

Class MinimalWordCount

java.lang.Object

org.apache.beam.examples.MinimalWordCount

public class MinimalWordCount
extends java.lang.Object

An example that counts words in Shakespeare.

This class, MinimalWordCount, is the first in a series of four successively more detailed 'word count' examples. Here, for simplicity, we don't show any error-checking or argument processing, and focus on construction of the pipeline, which chains together the application of core transforms.

Next, see the WordCount pipeline, then the DebuggingWordCount, and finally the WindowedWordCount pipeline, for more detailed examples that introduce additional concepts.

Concepts:

   1. Reading data from text files
   2. Specifying 'inline' transforms
   3. Counting items in a PCollection
   4. Writing data to text files
 

No arguments are required to run this pipeline. It will be executed with the DirectRunner. You can see the results in the output files in your current working directory, with names like "wordcounts-00001-of-00005. When running on a distributed service, you would use an appropriate file service.

Constructor Summary

Constructors

Constructor and Description
MinimalWordCount()

Method Summary

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

Methods inherited from class java.lang.Object

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

Constructor Detail

MinimalWordCount

public MinimalWordCount()

Method Detail

main

public static void main(java.lang.String[] args)