org.apache.flink.util

类 XORShiftRandom

java.lang.Object

java.util.Random

org.apache.flink.util.XORShiftRandom

所有已实现的接口:

Serializable

@Public
public class XORShiftRandom
extends Random

Implement a random number generator based on the XORShift algorithm discovered by George Marsaglia. This RNG is observed 4.5 times faster than Random in benchmark, with the cost that abandon thread-safety. So it's recommended to create a new XORShiftRandom for each thread.

另请参阅:

XORShift Algorithm Paper, 序列化表格

构造器概要

构造器

构造器和说明
XORShiftRandom()
XORShiftRandom(long input)

方法概要

限定符和类型	方法和说明
int	next(int bits) All other methods like nextInt()/nextDouble()... depends on this, so we just need to overwrite this.

从类继承的方法 java.util.Random

doubles, doubles, doubles, doubles, ints, ints, ints, ints, longs, longs, longs, longs, nextBoolean, nextBytes, nextDouble, nextFloat, nextGaussian, nextInt, nextInt, nextLong, setSeed

从类继承的方法 java.lang.Object

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

构造器详细资料

XORShiftRandom

public XORShiftRandom()

XORShiftRandom

public XORShiftRandom(long input)

方法详细资料

next

public int next(int bits)

All other methods like nextInt()/nextDouble()... depends on this, so we just need to overwrite this.

覆盖:

next 在类中 Random

参数:

bits - Random bits

返回:

The next pseudorandom value from this random number generator's sequence