org.jacorb.notification.queue

Class BoundedFifoEventQueue

java.lang.Object

org.jacorb.notification.queue.AbstractBoundedEventQueue

org.jacorb.notification.queue.BoundedFifoEventQueue

All Implemented Interfaces:

MessageQueue

public class BoundedFifoEventQueue
extends AbstractBoundedEventQueue

Note that most of the methods are not thread-safe. this causes no problem as the methods are not intended to be directly called by clients. instead the superclass implements the interface EventQueue and invokes the methods thereby synchronizing access.

Author:

Alphonse Bendt

Nested Class Summary

Nested classes/interfaces inherited from interface org.jacorb.notification.queue.MessageQueue

MessageQueue.DiscardListener

Constructor Summary

Constructors

Constructor and Description
BoundedFifoEventQueue(int maxSize, EventQueueOverflowStrategy overflowStrategy)
BoundedFifoEventQueue(int maxSize, EventQueueOverflowStrategy overflowStrategy, Object lock)

Method Summary

Methods

Modifier and Type	Method and Description
protected void	addElement(Message e)
protected Message[]	getAllElements()
protected Message	getEarliestTimeout()
protected Message[]	getElements(int max)
protected Message	getLeastPriority()
protected Message	getNextElement()
protected Message	getOldestElement()
String	getOrderPolicyName()
int	getSize() access the current size of this queue.
protected Message	getYoungestElement()
boolean	isEmpty() check if this queue is empty.

Methods inherited from class org.jacorb.notification.queue.AbstractBoundedEventQueue

addDiscardListener, getAllMessages, getDiscardPolicyName, getMessage, getMessages, put, removeDiscardListener

Methods inherited from class java.lang.Object

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

Constructor Detail

BoundedFifoEventQueue

public BoundedFifoEventQueue(int maxSize,
                     EventQueueOverflowStrategy overflowStrategy)

BoundedFifoEventQueue

public BoundedFifoEventQueue(int maxSize,
                     EventQueueOverflowStrategy overflowStrategy,
                     Object lock)

Method Detail

getOrderPolicyName

public String getOrderPolicyName()

Specified by:

getOrderPolicyName in interface MessageQueue

Specified by:

getOrderPolicyName in class AbstractBoundedEventQueue

isEmpty

public boolean isEmpty()

Description copied from interface: MessageQueue

check if this queue is empty.

getSize

public int getSize()

Description copied from interface: MessageQueue

access the current size of this queue.

getEarliestTimeout

protected Message getEarliestTimeout()

Specified by:

getEarliestTimeout in class AbstractBoundedEventQueue

getLeastPriority

protected Message getLeastPriority()

Specified by:

getLeastPriority in class AbstractBoundedEventQueue

getNextElement

protected Message getNextElement()

Specified by:

getNextElement in class AbstractBoundedEventQueue

getOldestElement

protected Message getOldestElement()

Specified by:

getOldestElement in class AbstractBoundedEventQueue

getYoungestElement

protected Message getYoungestElement()

Specified by:

getYoungestElement in class AbstractBoundedEventQueue

getAllElements

protected Message[] getAllElements()

Specified by:

getAllElements in class AbstractBoundedEventQueue

addElement

protected void addElement(Message e)

Specified by:

addElement in class AbstractBoundedEventQueue

getElements

protected Message[] getElements(int max)

Specified by:

getElements in class AbstractBoundedEventQueue