org.matalon.pagerankhits.dataStructures
Interface Queue

All Known Implementing Classes:

UrlsQueue

public interface Queue

This interface includes the basic queue functionality.

Author:

Yonatan Matalon

Method Summary

java.lang.Object	dequeue() Removes the first (top) Object in the queue.
void	enqueue(java.lang.Object obj) Adds the given Object to the queue.
boolean	isEmpty()

Method Detail

enqueue

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

Adds the given Object to the queue.

Parameters:

obj -

Throws:

InvalidParameterException

dequeue

public java.lang.Object dequeue()
                         throws StackEmptyException

Removes the first (top) Object in the queue.

Returns:

Returns the removed Object.

Throws:

StackEmptyException

isEmpty

public boolean isEmpty()

Returns:

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