Class SafeThreadLocalRandom

java.lang.Object

java.util.Random

com.palantir.random.SafeThreadLocalRandom

All Implemented Interfaces:

Serializable, RandomGenerator

public final class SafeThreadLocalRandom
extends Random

An implementation of Random that delegates all methods to ThreadLocalRandom.current(). This class can be used as a drop in replacement for new Random(). Unlike ThreadLocalRandom, an instance of SafeThreadLocalRandom may be used by multiple threads because each method invocation delegates to ThreadLocalRandom.current(). Note that because this is a shared instance, Random.setSeed(long) is unsupported. This is not a SecureRandom instance and must not be used for cryptography.

See Also:

• Serialized Form

Nested Class Summary

Nested classes/interfaces inherited from interface RandomGenerator

RandomGenerator.ArbitrarilyJumpableGenerator, RandomGenerator.JumpableGenerator, RandomGenerator.LeapableGenerator, RandomGenerator.SplittableGenerator, RandomGenerator.StreamableGenerator

Method Summary

Modifier and Type	Method	Description
DoubleStream	doubles()
DoubleStream	doubles(double randomNumberOrigin, double randomNumberBound)
DoubleStream	doubles(long streamSize)
DoubleStream	doubles(long streamSize, double randomNumberOrigin, double randomNumberBound)
static Random	get()	Gets the singleton SafeThreadLocalRandom instance.
IntStream	ints()
IntStream	ints(int randomNumberOrigin, int randomNumberBound)
IntStream	ints(long streamSize)
IntStream	ints(long streamSize, int randomNumberOrigin, int randomNumberBound)
LongStream	longs()
LongStream	longs(long streamSize)
LongStream	longs(long randomNumberOrigin, long randomNumberBound)
LongStream	longs(long streamSize, long randomNumberOrigin, long randomNumberBound)
protected int	next(int _bits)
boolean	nextBoolean()
void	nextBytes(byte[] bytes)
double	nextDouble()
float	nextFloat()
double	nextGaussian()
int	nextInt()
int	nextInt(int bound)
long	nextLong()
void	setSeed(long _seed)
String	toString()

Methods inherited from class Random

from

Methods inherited from class Object

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

Methods inherited from interface RandomGenerator

equiDoubles, isDeprecated, nextDouble, nextDouble, nextExponential, nextFloat, nextFloat, nextGaussian, nextInt, nextLong, nextLong

Method Details

get

public static Random get()

Gets the singleton SafeThreadLocalRandom instance.

setSeed

public void setSeed(long _seed)

Overrides:

setSeed in class Random

next

protected int next(int _bits)

Overrides:

next in class Random

nextBytes

public void nextBytes(byte[] bytes)

Specified by:

nextBytes in interface RandomGenerator

Overrides:

nextBytes in class Random

nextInt

public int nextInt()

Specified by:

nextInt in interface RandomGenerator

Overrides:

nextInt in class Random

nextInt

public int nextInt(int bound)

Specified by:

nextInt in interface RandomGenerator

Overrides:

nextInt in class Random

nextLong

public long nextLong()

Specified by:

nextLong in interface RandomGenerator

Overrides:

nextLong in class Random

nextBoolean

public boolean nextBoolean()

Specified by:

nextBoolean in interface RandomGenerator

Overrides:

nextBoolean in class Random

nextFloat

public float nextFloat()

Specified by:

nextFloat in interface RandomGenerator

Overrides:

nextFloat in class Random

nextDouble

public double nextDouble()

Specified by:

nextDouble in interface RandomGenerator

Overrides:

nextDouble in class Random

nextGaussian

public double nextGaussian()

Specified by:

nextGaussian in interface RandomGenerator

Overrides:

nextGaussian in class Random

ints

public IntStream ints(long streamSize)

Specified by:

ints in interface RandomGenerator

Overrides:

ints in class Random

ints

public IntStream ints()

Specified by:

ints in interface RandomGenerator

Overrides:

ints in class Random

ints

public IntStream ints(long streamSize,
 int randomNumberOrigin,
 int randomNumberBound)

Specified by:

ints in interface RandomGenerator

Overrides:

ints in class Random

ints

public IntStream ints(int randomNumberOrigin,
 int randomNumberBound)

Specified by:

ints in interface RandomGenerator

Overrides:

ints in class Random

longs

public LongStream longs(long streamSize)

Specified by:

longs in interface RandomGenerator

Overrides:

longs in class Random

longs

public LongStream longs()

Specified by:

longs in interface RandomGenerator

Overrides:

longs in class Random

longs

public LongStream longs(long streamSize,
 long randomNumberOrigin,
 long randomNumberBound)

Specified by:

longs in interface RandomGenerator

Overrides:

longs in class Random

longs

public LongStream longs(long randomNumberOrigin,
 long randomNumberBound)

Specified by:

longs in interface RandomGenerator

Overrides:

longs in class Random

doubles

public DoubleStream doubles(long streamSize)

Specified by:

doubles in interface RandomGenerator

Overrides:

doubles in class Random

doubles

public DoubleStream doubles()

Specified by:

doubles in interface RandomGenerator

Overrides:

doubles in class Random

doubles

public DoubleStream doubles(long streamSize,
 double randomNumberOrigin,
 double randomNumberBound)

Specified by:

doubles in interface RandomGenerator

Overrides:

doubles in class Random

doubles

public DoubleStream doubles(double randomNumberOrigin,
 double randomNumberBound)

Specified by:

doubles in interface RandomGenerator

Overrides:

doubles in class Random

toString

public String toString()

Overrides:

toString in class Object