Package | Description |
---|---|
java.lang.ref |
Provides reference-object classes, which support a limited degree of
interaction with the garbage collector.
|
Modifier and Type | Class and 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.
|
Modifier and Type | Method and 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.
|
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For further API reference and developer documentation, see Java SE Documentation. That documentation contains more detailed, developer-targeted descriptions, with conceptual overviews, definitions of terms, workarounds, and working code examples.
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