Uses of Class
java.lang.ref.Reference

Packages that use Reference
Package
Description
java.lang.ref
Provides reference-object classes, which support a limited degree of interaction with the garbage collector.

  • Uses of Reference in java.lang.ref

    Subclasses of Reference in java.lang.ref
    Modifier and Type
    Class
    Description
    class 
    PhantomReference<T>
    Phantom reference objects, which are enqueued after the collector determines that their referents may otherwise be reclaimed.
    class 
    SoftReference<T>
    Soft reference objects, which are cleared at the discretion of the garbage collector in response to memory demand.
    class 
    WeakReference<T>
    Weak reference objects, which do not prevent their referents from being made finalizable, finalized, and then reclaimed.
    Methods in java.lang.ref that return Reference
    Modifier and Type
    Method
    Description
    Reference<? extends T>
    ReferenceQueue.poll()
    Polls this queue to see if a reference object is available.
    Reference<? extends T>
    ReferenceQueue.remove()
    Removes the next reference object in this queue, blocking until one becomes available.
    Reference<? extends T>
    ReferenceQueue.remove​(long timeout)
    Removes the next reference object in this queue, blocking until either one becomes available or the given timeout period expires.