InheritableThreadLocal

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## java.lang
Class InheritableThreadLocal

    java.lang.Object
      java.lang.ThreadLocal
          java.lang.InheritableThreadLocal

    public class InheritableThreadLocal

extends ThreadLocal

This class extends `ThreadLocal` to provide inheritance of values from parent thread to child thread: when a child thread is created, the child receives initial values for all inheritable thread-local variables for which the parent has values. Normally the child's values will be identical to the parent's; however, the child's value can be made an arbitrary function of the parent's by overriding the `childValue` method in this class.

Inheritable thread-local variables are used in preference to ordinary thread-local variables when the per-thread-attribute being maintained in the variable (e.g., User ID, Transaction ID) must be automatically transmitted to any child threads that are created.

Since:
  1.2
Version:
  1.17, 03/12/05
Author:
  Josh Bloch and Doug Lea
See Also:
  `ThreadLocal`

Constructor Summary
`InheritableThreadLocal()`

Method Summary

Methods inherited from class java.lang.ThreadLocal
`get, set`

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

Constructor Detail

### InheritableThreadLocal

    public InheritableThreadLocal()

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