uk.org.lidalia.lang

Class ThreadLocal<T>

java.lang.Object

uk.org.lidalia.lang.ThreadLocal<T>

Type Parameters:

T - the type of the thread local variable

public class ThreadLocal<T>
extends Object

This class was written by Robert Elliot and is originally located at https://github.com/Mahoney/lidalia-lang

A ThreadLocal that has no ClassLoader leaks associated with it and does not permit null.

Values for all Threads can be reset from any Thread.

Constructor Summary

Constructors

Constructor and Description
ThreadLocal(Supplier<T> initialValueCreator)
ThreadLocal(T initialValue)

Method Summary

Modifier and Type	Method and Description
Collection<T>	allValues()
T	get()
void	remove() Removes the value for the calling Thread.
void	reset() Removes the values for ALL Threads.
void	set(T value)

Methods inherited from class java.lang.Object

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

Constructor Detail

ThreadLocal

public ThreadLocal(T initialValue)

Parameters:

initialValue - the value this thread local will initially have for all Threads. This should not be mutable, as it will be shared between all Threads.

ThreadLocal

public ThreadLocal(Supplier<T> initialValueCreator)

Parameters:

initialValueCreator - a Supplier whose get method is called on a per Thread basis in order to establish the initial value for that Thread, allowing a different initial instance per Thread.

Method Detail

set

public void set(T value)

Parameters:

value - the new value for the calling Thread - does not affect the value for any other Thread.

get

public T get()

Returns:

the value for the calling Thread, or the initial value if this has not been set or has been removed.

remove

public void remove()

Removes the value for the calling Thread. A subsequent call to get() will return the initial value.

reset

public void reset()

Removes the values for ALL Threads. Subsequent calls to get() will return the initial value.

allValues

public Collection<T> allValues()