WeakClassHashMap

Class Overview

Abstract class that maps Class objects to lazily-computed values of type V. A concrete subclass must implement the computeValue method to determine how the values are computed. The keys are only weakly reachable through this map, so this map does not prevent a class (along with its class loader, etc.) from being garbage collected if it is not otherwise strongly reachable. The values are only softly reachable through this map, so that the computed values generally persist while not otherwise strongly reachable, but their storage may be reclaimed if necessary. Also, note that if a key is strongly reachable from a value, then the key is effectively softly reachable through this map, which may delay garbage collection of classes (see 4429536).

Summary

[Expand] Inherited Methods

From class java.lang.Object Object clone() Creates and returns a copy of this object. boolean equals(Object obj) Indicates whether some other object is "equal to" this one. void finalize() Called by the garbage collector on an object when garbage collection determines that there are no more references to the object. final Class<?> getClass() Returns the runtime class of this Object. int hashCode() Returns a hash code value for the object. final void notify() Wakes up a single thread that is waiting on this object's monitor. final void notifyAll() Wakes up all threads that are waiting on this object's monitor. String toString() Returns a string representation of the object. final void wait() Causes the current thread to wait until another thread invokes the notify() method or the notifyAll() method for this object. final void wait(long timeout, int nanos) Causes the current thread to wait until another thread invokes the notify() method or the notifyAll() method for this object, or some other thread interrupts the current thread, or a certain amount of real time has elapsed. final void wait(long timeout) Causes the current thread to wait until either another thread invokes the notify() method or the notifyAll() method for this object, or a specified amount of time has elapsed.