Uses of Class
java.lang.ref.Reference

Packages that use Reference
Package
Description
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 objects are used to detect referents which are no longer visible and are eligible to have their storage reclaimed.
    class 
    SoftReference objects are used to detect referents which are no longer visible and who's memory is to be reclaimed.
    class 
    WeakReference objects are used to detect referents which are no longer visible.
    Methods in java.lang.ref that return Reference
    Modifier and Type
    Method
    Description
    Reference<? extends T>
    ReferenceQueue.poll()
    Returns the next available reference from the queue if one is enqueued, null otherwise.
    Reference<? extends T>
    ReferenceQueue.remove()
    Return the next available enqueued reference on the queue, blocking indefinitely until one is available.
    Reference<? extends T>
    ReferenceQueue.remove(long timeout)
    Return the next available enqueued reference on the queue, blocking up to the time given until one is available.