org.apache.mina.util
Class Queue

java.lang.Object
  org.apache.mina.util.Queue

All Implemented Interfaces:

Serializable

public class Queue
extends Object
implements Serializable

A unbounded circular queue.

Version:

$Rev: 264677 $, $Date: 2005-08-30 11:44:35 +0900 $

Author:

Trustin Lee (trustin@apache.org)

See Also:

Serialized Form

Constructor Summary

Queue()
Construct a new, empty queue.

Method Summary

int	capacity() Returns the capacity of this queue.
void	clear() Clears this queue.
Object	first() Returns the first element of the queue.
Object	get(int idx)
boolean	isEmpty() Returns true if the queue is empty.
Object	last()
Object	pop() Dequeues from this queue.
void	push(Object obj) Enqueue into this queue.
int	size() Returns the number of elements in the queue.
String	toString()

Methods inherited from class java.lang.Object

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

Constructor Detail

Queue

public Queue()

Construct a new, empty queue.

Method Detail

capacity

public int capacity()

Returns the capacity of this queue.

clear

public void clear()

Clears this queue.

pop

public Object pop()

Dequeues from this queue.

Returns:

null, if this queue is empty or the element is really null.

push

public void push(Object obj)

Enqueue into this queue.

first

public Object first()

Returns the first element of the queue.

Returns:

null, if the queue is empty, or the element is really null.

last

public Object last()

get

public Object get(int idx)

isEmpty

public boolean isEmpty()

Returns true if the queue is empty.

size

public int size()

Returns the number of elements in the queue.

toString

public String toString()

Overrides:

toString in class Object