Class Overview
Queue: implements a simple queue mechanism. Allows for enumeration of the
elements.
Summary
Public Constructors |
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Queue()
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Public Methods |
synchronized
Object
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dequeue(long timeOut)
Dequeue the oldest object on the queue.
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Object
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dequeue()
Dequeue the oldest object on the queue.
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synchronized
void
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dump(String msg)
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synchronized
final
Enumeration
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elements()
Returns an enumeration of the elements in Last-In, First-Out
order.
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synchronized
void
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enqueue(Object obj)
Enqueue an object.
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synchronized
boolean
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isEmpty()
Is the queue empty?
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synchronized
final
Enumeration
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reverseElements()
Returns an enumeration of the elements in First-In, First-Out
order.
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[Expand]
Inherited Methods |
From class
java.lang.Object
Object
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clone()
Creates and returns a copy of this object.
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boolean
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equals(Object obj)
Indicates whether some other object is "equal to" this one.
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void
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finalize()
Called by the garbage collector on an object when garbage collection
determines that there are no more references to the object.
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final
Class<?>
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getClass()
Returns the runtime class of this Object .
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int
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hashCode()
Returns a hash code value for the object.
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final
void
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notify()
Wakes up a single thread that is waiting on this object's
monitor.
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final
void
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notifyAll()
Wakes up all threads that are waiting on this object's monitor.
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String
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toString()
Returns a string representation of the object.
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final
void
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wait()
Causes the current thread to wait until another thread invokes the
notify() method or the
notifyAll() method for this object.
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final
void
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wait(long timeout, int nanos)
Causes the current thread to wait until another thread invokes the
notify() method or the
notifyAll() method for this object, or
some other thread interrupts the current thread, or a certain
amount of real time has elapsed.
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final
void
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wait(long timeout)
Causes the current thread to wait until either another thread invokes the
notify() method or the
notifyAll() method for this object, or a
specified amount of time has elapsed.
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Public Constructors
Public Methods
public
synchronized
Object
dequeue
(long timeOut)
Dequeue the oldest object on the queue.
Parameters
timeOut
| the number of milliseconds to wait for something
to arrive. |
Returns
- the oldest object on the queue.
public
Object
dequeue
()
Dequeue the oldest object on the queue. Will wait indefinitely.
Returns
- the oldest object on the queue.
public
synchronized
void
dump
(String msg)
public
final
synchronized
Enumeration
elements
()
Returns an enumeration of the elements in Last-In, First-Out
order. Use the Enumeration methods on the returned object to
fetch the elements sequentially.
public
synchronized
void
enqueue
(Object obj)
public
synchronized
boolean
isEmpty
()
Returns
- true if the queue is empty.
public
final
synchronized
Enumeration
reverseElements
()
Returns an enumeration of the elements in First-In, First-Out
order. Use the Enumeration methods on the returned object to
fetch the elements sequentially.