java.lang.ref

Class ReferenceQueue<T>

public class ReferenceQueue<T> extends Object

This is the queue, where references can enqueue themselve on. Each reference may be registered to a queue at initialization time and will be appended to the queue, when the enqueue method is called. The enqueue method may be automatically called by the garbage collector if it detects, that the object is only reachable through the Reference objects.

See Also: enqueue

Constructor Summary
	ReferenceQueue() Creates a new empty reference queue.

Method Summary
Reference<? extends T>	poll() Checks if there is a reference on the queue, returning it immediately.
Reference<? extends T>	remove(long timeout) Removes a reference from the queue, blocking for `timeout` until a reference is enqueued.
Reference<? extends T>	remove() Removes a reference from the queue, blocking until a reference is enqueued.