Package com.gigaspaces.internal.utils

Class ClassLoaderThreadLocal<T>

java.lang.Object
com.gigaspaces.internal.utils.ClassLoaderThreadLocal<T>
All Implemented Interfaces:
IClassLoaderCacheStateListener
public class ClassLoaderThreadLocal<T> extends Object implements IClassLoaderCacheStateListener
Holds thread local per class loader, get and set method will operate on the thread local which is associated to the context class loader. Once the class loader is removed, the associated thread local map is removed as well. This works only
Since:
9.1
Author:
eitany

  • Constructor Summary

    Constructors
    Constructor
    Description
    ClassLoaderThreadLocal()
     

  • Method Summary

    Modifier and Type
    Method
    Description
    T
    get()
    Returns the value in the current thread's copy of this thread-local variable within the context class loader.
    protected T
    initialValue()
    Returns the current thread's "initial value" for this thread-local variable.
    void
    onClassLoaderRemoved(Long classLoaderKey, boolean explicit)
     
    void
    set(T value)
    Sets the current thread's copy of this thread-local variable within the context class loader to the specified value.

    Methods inherited from class java.lang.Object

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

  • Constructor Details

    • ClassLoaderThreadLocal

      public ClassLoaderThreadLocal()

  • Method Details

    • initialValue

      protected T initialValue()
      Returns the current thread's "initial value" for this thread-local variable. This method will be invoked the first time a thread accesses the variable with the get() method, unless the thread previously invoked the set(T) method, in which case the initialValue method will not be invoked for the thread. Normally, this method is invoked at most once per thread, but it may be invoked again in case of subsequent invocations of #remove followed by get().

      This implementation simply returns null; if the programmer desires thread-local variables to have an initial value other than null, ThreadLocal must be subclassed, and this method overridden. Typically, an anonymous inner class will be used.

      Returns:
      the initial value for this thread-local

    • get

      public T get()
      Returns the value in the current thread's copy of this thread-local variable within the context class loader. If the variable has no value for the current thread, it is first initialized to the value returned by an invocation of the initialValue() method.
      Returns:
      the current thread's value of this thread-local

    • set

      public void set(T value)
      Sets the current thread's copy of this thread-local variable within the context class loader to the specified value. Most subclasses will have no need to override this method, relying solely on the initialValue() method to set the values of thread-locals.
      Parameters:
      value - the value to be stored in the current thread's copy of this thread-local.

    • onClassLoaderRemoved

      public void onClassLoaderRemoved(Long classLoaderKey, boolean explicit)
      Specified by:
      onClassLoaderRemoved in interface IClassLoaderCacheStateListener