Android APIs
public class

InheritableThreadLocal

extends ThreadLocal<T>
java.lang.Object
   ↳ java.lang.ThreadLocal<T>
     ↳ java.lang.InheritableThreadLocal<T>

Class Overview

A thread-local variable whose value is passed from parent to child thread. By default, the value of an inheritable thread-local variable of a child thread is initialized with the value of the parent thread's variable at thread creation time. However, subclasses may override {code #childValue(Object)} to provide an arbitrary function for passing the value of a parent's thread-local variable to the child's thread-local variable.

See also:

Summary

Public Constructors
InheritableThreadLocal()
Creates a new inheritable thread-local variable.
Protected Methods
T childValue(T parentValue)
Computes the initial value of this thread-local variable for the child thread given the parent thread's value.
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Inherited Methods
From class java.lang.ThreadLocal
From class java.lang.Object

Public Constructors

public InheritableThreadLocal ()

Added in API level 1

Creates a new inheritable thread-local variable.

Protected Methods

protected T childValue (T parentValue)

Added in API level 1

Computes the initial value of this thread-local variable for the child thread given the parent thread's value. Called from the parent thread when creating a child thread. The default implementation returns the parent thread's value.

Parameters
parentValue the value of the variable in the parent thread.
Returns
T the initial value of the variable for the child thread.