org.matalon.pagerankhits.dataStructures
Class UrlsQueue

java.lang.Object
  org.matalon.pagerankhits.dataStructures.UrlsQueue

All Implemented Interfaces:

Queue

public class UrlsQueue

extends java.lang.Object

implements Queue

This class represents a web related queue data structure.

Author:

Yonatan Matalon

Field Summary

private java.util.List

urls

Constructor Summary

UrlsQueue()

Method Summary

java.lang.Object	dequeue() Removes the first (top) Object in the queue.
WebPageProperties	elementAt(int index)
void	enqueue(java.lang.Object obj) Adds the given Object to the queue.
java.lang.String	getUrlAt(int index)
boolean	isEmpty()
int	size()

Methods inherited from class java.lang.Object

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

Field Detail

urls

private java.util.List urls

Constructor Detail

UrlsQueue

public UrlsQueue()

Method Detail

enqueue

public void enqueue(java.lang.Object obj)
             throws InvalidParameterException

Description copied from interface: Queue

Adds the given Object to the queue.

Specified by:

enqueue in interface Queue

Parameters:

obj -

Throws:

InvalidParameterException

See Also:

Queue.enqueue(java.lang.Object)

dequeue

public java.lang.Object dequeue()

Description copied from interface: Queue

Removes the first (top) Object in the queue.

Specified by:

dequeue in interface Queue

Returns:

Returns the removed Object.

See Also:

Queue.dequeue()

isEmpty

public boolean isEmpty()

Specified by:

isEmpty in interface Queue

Returns:

Returns true, it the queue is empty, false otherwise.

See Also:

Queue.isEmpty()

elementAt

public WebPageProperties elementAt(int index)
                            throws java.lang.IndexOutOfBoundsException

Parameters:

index -

Returns:

Returns the web page properties at the given index.

Throws:

java.lang.IndexOutOfBoundsException

getUrlAt

public java.lang.String getUrlAt(int index)
                          throws java.lang.IndexOutOfBoundsException

Parameters:

index -

Returns:

Returns the URL at the given index.

Throws:

java.lang.IndexOutOfBoundsException

size

public int size()

Returns:

Returns the size of the queue.