ThreadLocalRandom (Netty 3.10.6.Final API)

java.lang.Object
- java.util.Random
- - org.jboss.netty.util.internal.ThreadLocalRandom

All Implemented Interfaces:

Serializable
```
public final class ThreadLocalRandom
extends Random
```
A random number generator isolated to the current thread. Like the global Random generator used by the Math class, a ThreadLocalRandom is initialized with an internally generated seed that may not otherwise be modified. When applicable, use of ThreadLocalRandom rather than shared Random objects in concurrent programs will typically encounter much less overhead and contention. Use of ThreadLocalRandom is particularly appropriate when multiple tasks use random numbers in parallel in thread pools.
Usages of this class should typically be of the form: ThreadLocalRandom.current().nextX(...) (where X is Int, Long, etc). When all usages are of this form, it is never possible to accidently share a ThreadLocalRandom across multiple threads.
This class also provides additional commonly used bounded random generation methods.

Since:

1.7

See Also:

Serialized Form

Constructor Summary

Constructors
Constructor Description

ThreadLocalRandom()

Method Summary

All Methods Static Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`static ThreadLocalRandom`	`current()`	Returns the current thread's `ThreadLocalRandom`.
`protected int`	`next(int bits)`
`void`	`setSeed(long seed)`	Throws `UnsupportedOperationException`.

Methods inherited from class java.util.Random
doubles, doubles, doubles, doubles, ints, ints, ints, ints, longs, longs, longs, longs, nextBoolean, nextBytes, nextDouble, nextFloat, nextGaussian, nextInt, nextInt, nextLong

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Constructor Detail
  - ThreadLocalRandom
```
public ThreadLocalRandom()
```
- Method Detail
  - current
```
public static ThreadLocalRandom current()
```
    Returns the current thread's ThreadLocalRandom.
    
    Returns:
    
    the current thread's ThreadLocalRandom
  - setSeed
```
public void setSeed(long seed)
```
    Throws UnsupportedOperationException. Setting seeds in this generator is not supported.
    
    Overrides:
    
    setSeed in class Random
    
    Throws:
    
    UnsupportedOperationException - always
  - next
```
protected int next(int bits)
```
    Overrides:
    
    next in class Random