public interface PseudoReference<T>
Interface for dealing with both strong references and java.lang.ref.Reference Objects interchangably. If Java supported a StrongReference subclass of Reference, this interface would not be necessary.
Modifier and Type | Method and Description |
---|---|
void |
clear()
Clears this reference object.
|
boolean |
enqueue()
Adds this reference object to the queue with which it is registered,
if any.
|
T |
get()
Returns this reference object's referent.
|
boolean |
isEnqueued()
Tells whether or not this reference object has been enqueued, either by
the program or by the garbage collector.
|
T get()
null
.null
if this reference object has been clearedvoid clear()
This method is invoked only by Java code; when the garbage collector clears references it does so directly, without invoking this method.
boolean isEnqueued()
false
.true
if and only if this reference object has
been enqueuedboolean enqueue()
This method is invoked only by Java code; when the garbage collector enqueues references it does so directly, without invoking this method.
true
if this reference object was successfully
enqueued; false
if it was already enqueued or if
it was not registered with a queue when it was createdCopyright © 2001-2017 The Apache Software Foundation. All Rights Reserved.