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Class weka.core.Queue 

java.lang.Object
   |
   +----weka.core.Queue
public class Queue
extends Object
implements Serializable
Class representing a FIFO queue.

Version:
$Revision: 1.2 $
Author:
Len Trigg (trigg@cs.waikato.ac.nz)

Constructor Index

o Queue()

Method Index

o empty()
Checks if queue is empty.
o main(String[])
Main method for testing this class.
o peek()
Gets object from the front of the queue.
o pop()
Pops an object from the front of the queue.
o push(Object)
Appends an object to the back of the queue.
o removeAllElements()
Removes all objects from the queue.
o size()
Gets queue's size.
o toString()
Produces textual description of queue.

Constructors

o Queue 
 public Queue()

Methods

o removeAllElements 
 public final synchronized void removeAllElements()
Removes all objects from the queue.

o push 
 public synchronized Object push(Object item)
Appends an object to the back of the queue.

Parameters:
item - the object to be appended
Returns:
the object appended
o pop 
 public synchronized Object pop() throws Exception
Pops an object from the front of the queue.

Returns:
the object at the front of the queue
Throws: Exception
if the queue is empty
o peek 
 public synchronized Object peek() throws Exception
Gets object from the front of the queue.

Returns:
the object at the front of the queue
Throws: Exception
if the queue is empty
o empty 
 public boolean empty()
Checks if queue is empty.

Returns:
true if queue is empty
o size 
 public int size()
Gets queue's size.

Returns:
size of queue
o toString 
 public String toString()
Produces textual description of queue.

Returns:
textual description of queue
Overrides:
toString in class Object
o main 
 public static void main(String argv[])
Main method for testing this class.

Parameters:
argv - a set of strings that are pushed on a test queue 
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