org.meanbean.util

Interface RandomValueGenerator

All Known Implementing Classes:

SimpleRandomValueGenerator

public interface RandomValueGenerator

Defines an object that generates random values.

Author:

Graham Williamson

Method Summary

Modifier and Type	Method and Description
static RandomValueGenerator	getInstance()
static ServiceDefinition<RandomValueGenerator>	getServiceDefinition()
boolean	nextBoolean() Generate a random boolean.
byte	nextByte() Generate a random byte.
byte[]	nextBytes(int size) Generate a random array of bytes.
double	nextDouble() Generate a random double between 0.0d (inclusive) and 1.0d (exclusive).
float	nextFloat() Generate a random float between 0.0f (inclusive) and 1.0f (exclusive).
int	nextInt() Generate a random int.
int	nextInt(int bound)
long	nextLong() Generate a random long.

Method Detail

nextByte

byte nextByte()

Generate a random byte.

Returns:

A randomly generated byte, which may be positive or negative.

nextBytes

byte[] nextBytes(int size)

Generate a random array of bytes.

Parameters:

size - The number of bytes to generate and return. This cannot be a negative number.

Returns:

An array of size randomly generated bytes, each of which may be positive or negative.

Throws:

IllegalArgumentException - If the size parameter is deemed illegal. For example, if it is a negative number.

nextInt

int nextInt()

Generate a random int.

Returns:

A randomly generated int, which may be positive or negative.

nextInt

int nextInt(int bound)

nextLong

long nextLong()

Generate a random long.

Returns:

A randomly generated double.

nextFloat

float nextFloat()

Generate a random float between 0.0f (inclusive) and 1.0f (exclusive).

Returns:

A randomly generated float.

nextDouble

double nextDouble()

Generate a random double between 0.0d (inclusive) and 1.0d (exclusive).

Returns:

A randomly generated double.

nextBoolean

boolean nextBoolean()

Generate a random boolean.

Returns:

A randomly generated boolean.

getServiceDefinition

static ServiceDefinition<RandomValueGenerator> getServiceDefinition()

getInstance

static RandomValueGenerator getInstance()