nl.tudelft.simulation.messaging.queues
Class MessageQueue

java.lang.Object
  nl.tudelft.simulation.messaging.queues.MessageQueue

All Implemented Interfaces:

MessageQueueInterface, java.io.Serializable

public class MessageQueue

extends java.lang.Object

implements MessageQueueInterface

The MessageQueue sorts messages on priority, and within the same priority on the moment the messages entered the queue.
Copyright (c) 2003-2005 Delft University of Technology, Jaffalaan 5, 2628 BX Delft, the Netherlands. All rights reserved. See for project information www.simulation.tudelft.nl . The source code and binary code of this software is proprietary information of Delft University of Technology.

Version:

$$Revision: 1.3 $$ $$Date: 2005/04/08 11:29:13 $$

Author:

Peter Jacobs , Stijn-Pieter van Houten , Alexander Verbraeck

See Also:

Serialized Form

Constructor Summary

MessageQueue(java.util.Comparator comparator)
Make a new MessageQueue

Method Summary

void	add(Message message)
Message	first()
boolean	isEmpty()
void	remove(Message message)
Message	removeFirst()
int	size()

Methods inherited from class java.lang.Object

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

Constructor Detail

MessageQueue

public MessageQueue(java.util.Comparator comparator)

Make a new MessageQueue

Parameters:

comparator - (or chain) the comparator to use

Method Detail

add

public void add(Message message)

Specified by:

add in interface MessageQueueInterface

Parameters:

message - new message to add

See Also:

#add(nl.tudelft.simulation.messaging.Message)

remove

public void remove(Message message)

Specified by:

remove in interface MessageQueueInterface

Parameters:

message - message to remove

See Also:

#remove(nl.tudelft.simulation.messaging.Message)

first

public Message first()

Specified by:

first in interface MessageQueueInterface

Returns:

the first message according to the sorting mechanism

See Also:

MessageQueueInterface.first()

removeFirst

public Message removeFirst()

Specified by:

removeFirst in interface MessageQueueInterface

Returns:

the first message removed according to the sorting mechanism

See Also:

MessageQueueInterface.removeFirst()

size

public int size()

Specified by:

size in interface MessageQueueInterface

Returns:

the number of messages in the queue

See Also:

MessageQueueInterface.size()

isEmpty

public boolean isEmpty()

Specified by:

isEmpty in interface MessageQueueInterface

Returns:

whether the queue is empty or not

See Also:

MessageQueueInterface.isEmpty()