org.apache.flink.graph.generator.random

Class GeneratorFactoryBase<T extends org.apache.commons.math3.random.RandomGenerator>

java.lang.Object

org.apache.flink.graph.generator.random.GeneratorFactoryBase<T>

Type Parameters:

T - the type of the RandomGenerator

All Implemented Interfaces:

RandomGenerableFactory<T>

Direct Known Subclasses:

JDKRandomGeneratorFactory, MersenneTwisterFactory

public abstract class GeneratorFactoryBase<T extends org.apache.commons.math3.random.RandomGenerator>
extends Object
implements RandomGenerableFactory<T>

This base class handles the task of dividing the requested work into the appropriate number of blocks of near-equal size.

Field Summary

Fields

Modifier and Type	Field and Description
static int	MAXIMUM_BLOCK_COUNT

Constructor Summary

Constructors

Constructor and Description
GeneratorFactoryBase()

Method Summary

Modifier and Type	Method and Description
protected abstract int	getMinimumCyclesPerBlock()
List<BlockInfo<T>>	getRandomGenerables(long elementCount, int cyclesPerElement) The amount of work (elementCount * cyclesPerElement) is used to generate a list of blocks of work of near-equal size.
protected abstract RandomGenerable<T>	next()

Methods inherited from class java.lang.Object

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

Field Detail

MAXIMUM_BLOCK_COUNT

public static final int MAXIMUM_BLOCK_COUNT

See Also:

Constant Field Values

Constructor Detail

GeneratorFactoryBase

public GeneratorFactoryBase()

Method Detail

getMinimumCyclesPerBlock

protected abstract int getMinimumCyclesPerBlock()

next

protected abstract RandomGenerable<T> next()

getRandomGenerables

public List<BlockInfo<T>> getRandomGenerables(long elementCount,
                                              int cyclesPerElement)

Description copied from interface: RandomGenerableFactory

The amount of work (elementCount * cyclesPerElement) is used to generate a list of blocks of work of near-equal size.

Specified by:

getRandomGenerables in interface RandomGenerableFactory<T extends org.apache.commons.math3.random.RandomGenerator>

Parameters:

elementCount - number of elements, as indexed in the BlockInfo

cyclesPerElement - number of cycles of the PRNG per element

Returns:

the list of configuration blocks