dev.codesoapbox.dummy4j

Class RandomService

java.lang.Object

dev.codesoapbox.dummy4j.RandomService

public class RandomService
extends Object

Provides random values which are generated based on a seed

Constructor Summary

Constructors

Constructor and Description
RandomService(Long seed)

Method Summary

Modifier and Type	Method and Description
<T> T	chance(int howMany, int in, Supplier<T> supplier) Has a howMany in in chance to supply a value.
<T extends Enum<?>> T	enumValue(Class<T> clazz) Returns a random enum value
long	getSeed()
boolean	nextBoolean() Generates a random boolean
double	nextDouble() Generates a random positive double
double	nextDouble(double bound) Generates a random double between 0 and upperBound (inclusive)
double	nextDouble(double lowerBound, double upperBound) Generates a random double between lowerBound and upperBound (inclusive)
float	nextFloat() Generates a random positive float
float	nextFloat(float upperBound) Generates a random double between 0 and upperBound (inclusive)
float	nextFloat(float lowerBound, float upperBound) Generates a random float between lowerBound (inclusive) and upperBound (exclusive)
int	nextInt() Generates a random positive int
int	nextInt(int upperBound) Generates a random int between 0 and upperBound (inclusive)
int	nextInt(int lowerBound, int upperBound) Generates a random int between lowerBound and upperBound (inclusive)
long	nextLong() Generates a random positive long
long	nextLong(long upperBound) Generates a random long between 0 and upperBound inclusive
long	nextLong(long lowerBound, long upperBound) Generates a random long between @{code lowerBound} and upperBound (inclusive)
String	uuid() Generates a random UUID

Methods inherited from class java.lang.Object

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

Constructor Detail

RandomService

public RandomService(Long seed)

Method Detail

getSeed

public long getSeed()

chance

public <T> T chance(int howMany,
                    int in,
                    Supplier<T> supplier)

Has a howMany in in chance to supply a value. Otherwise, returns null.

E.g. chance(1, 2, () -> "hello") has a 1-in-2 chance to supply "hello", that is it will be supplied 50% of the time when the method is invoked.

Returns:

supplied T or null

enumValue

public <T extends Enum<?>> T enumValue(Class<T> clazz)

Returns a random enum value

Since:

0.1.2

uuid

public String uuid()

Generates a random UUID

Since:

0.1.2

nextBoolean

public boolean nextBoolean()

Generates a random boolean

nextInt

public int nextInt()

Generates a random positive int

nextInt

public int nextInt(int upperBound)

Generates a random int between 0 and upperBound (inclusive)

nextInt

public int nextInt(int lowerBound,
                   int upperBound)

Generates a random int between lowerBound and upperBound (inclusive)

nextLong

public long nextLong()

Generates a random positive long

nextLong

public long nextLong(long lowerBound,
                     long upperBound)

Generates a random long between @{code lowerBound} and upperBound (inclusive)

nextLong

public long nextLong(long upperBound)

Generates a random long between 0 and upperBound inclusive

nextDouble

public double nextDouble()

Generates a random positive double

nextDouble

public double nextDouble(double bound)

Generates a random double between 0 and upperBound (inclusive)

nextDouble

public double nextDouble(double lowerBound,
                         double upperBound)

Generates a random double between lowerBound and upperBound (inclusive)

nextFloat

public float nextFloat()

Generates a random positive float

nextFloat

public float nextFloat(float upperBound)

Generates a random double between 0 and upperBound (inclusive)

nextFloat

public float nextFloat(float lowerBound,
                       float upperBound)

Generates a random float between lowerBound (inclusive) and upperBound (exclusive)