org.vrspace.util
Class Queue

java.lang.Object
  org.vrspace.util.Queue

public class Queue

extends java.lang.Object

Synchronized FIFO Queue

Nested Class Summary

class

Queue.QueueIterator

Constructor Summary

Queue()

Method Summary

void	add(java.lang.Object o) add new object to the queue
java.lang.Object	elementAt(int pos) Returns element at specified position in the queue
boolean	isEmpty() queue empty?
Queue.QueueIterator	iterator()
static void	main(java.lang.String[] args)
java.lang.Object	peek() returns the next object from the queue, null if queue has no elements
java.lang.Object	remove() returns the next object and removes it from the queue, null for empty queue
void	removeElement(java.lang.Object o) removes object from the queue
java.lang.Object	removeElementAt(int pos) Removes element at specified position in the queue
int	size() returns queue size
java.lang.Object[]	toArray() Returns array containing queue elements
java.lang.Object[]	toArray(java.lang.Object[] array) Stores queue elements to the array.
java.lang.String	toString()

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Detail

Queue

public Queue()

Method Detail

toArray

public java.lang.Object[] toArray()

Returns array containing queue elements

toArray

public java.lang.Object[] toArray(java.lang.Object[] array)

Stores queue elements to the array.

Returns:

the same array

Throws:

java.lang.ArrayIndexOutOfBoundsException - if array has wrong size.

add

public void add(java.lang.Object o)

add new object to the queue

peek

public java.lang.Object peek()

returns the next object from the queue, null if queue has no elements

remove

public java.lang.Object remove()

returns the next object and removes it from the queue, null for empty queue

elementAt

public java.lang.Object elementAt(int pos)

Returns element at specified position in the queue

removeElementAt

public java.lang.Object removeElementAt(int pos)

Removes element at specified position in the queue

Returns:

removed element

removeElement

public void removeElement(java.lang.Object o)

removes object from the queue

isEmpty

public boolean isEmpty()

queue empty?

size

public int size()

returns queue size

toString

public java.lang.String toString()

iterator

public Queue.QueueIterator iterator()

main

public static void main(java.lang.String[] args)