java.lang
Class InheritableThreadLocal<T>
A ThreadLocal whose value is inherited by child Threads. The value of the
InheritableThreadLocal associated with the (parent) Thread is copied to
the new (child) Thread at the moment of creation.
It is possible to make the value associated with the child Thread a
function of the value that is associated with the parent Thread by
overriding the
childValue() method. The utility of this class
is in transferring items like User ID or Transaction ID across threads
automatically.
protected T | childValue(T parentValue)- Determines the value associated with a newly created child Thread as a
function of the value associated with the currently executing (parent)
Thread.
|
clone, equals, extends Object> getClass, finalize, hashCode, notify, notifyAll, toString, wait, wait, wait |
InheritableThreadLocal
public InheritableThreadLocal()
Creates a new InheritableThreadLocal that has no values associated
with it yet.
childValue
protected T childValue(T parentValue)
Determines the value associated with a newly created child Thread as a
function of the value associated with the currently executing (parent)
Thread. The default implementation just returns the parentValue.
parentValue - the value of this object in the parent thread at
the moment of creation of the child
- the initial value for the child thread
InheritableThreadLocal -- a ThreadLocal which inherits values across threads
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