com.google.appengine.tools.mapreduce.inputs

Class RandomLongInput

java.lang.Object

com.google.appengine.tools.mapreduce.Input<Long>

com.google.appengine.tools.mapreduce.inputs.RandomLongInput

All Implemented Interfaces:

Serializable

public final class RandomLongInput
extends Input<Long>

An input that produce random values.

Author:

ohler@google.com (Christian Ohler)

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
RandomLongInput(long valuesTotal, int shardCount)

Method Summary

Methods

Modifier and Type	Method and Description
List<? extends InputReader<Long>>	createReaders() Returns a list of readers for this input.
RandomLongInput	setSeed(long seed)
String	toString()

Methods inherited from class com.google.appengine.tools.mapreduce.Input

getContext

Methods inherited from class java.lang.Object

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

Constructor Detail

RandomLongInput

public RandomLongInput(long valuesTotal,
               int shardCount)

Method Detail

setSeed

public RandomLongInput setSeed(long seed)

toString

public String toString()

Overrides:

toString in class Object

createReaders

public List<? extends InputReader<Long>> createReaders()

Description copied from class: Input

Returns a list of readers for this input. It is the Input's responsibility to determine an appropriate number of readers to split into. This could be specified by the user or determined algorithmically. The number of input readers returned determines the number of map shards.

Specified by:

createReaders in class Input<Long>