org.simoes.lpd.util
Class PrintQueue

java.lang.Object
  org.simoes.lpd.util.PrintQueue

Direct Known Subclasses:

PrintQueueWithTableModel

public class PrintQueue

extends java.lang.Object

The PrintQueue is just a queue that only accepts print jobs still need to figure out how the events get sent

Author:

Jason Crowe

Field Summary

protected Lock	lock
protected Queue	queue

Constructor Summary

PrintQueue(java.lang.String name)
constructor.

Method Summary

long	add(PrintJob printJob) add print job to queue.
void	closeQueue()
Lock	getLock()
QueuedPrintJob	getNextPrintJob() Gets the next PrintJob without removing it.
java.util.List	list() list items in queue.
PrintJob	remove(long id) remove print job from queue.
int	removeAll() remove all print jobs from queue.
int	size() size of the print queue.

Methods inherited from class java.lang.Object

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

Field Detail

lock

protected final Lock lock

queue

protected Queue queue

Constructor Detail

PrintQueue

public PrintQueue(java.lang.String name)

constructor.

Parameters:

name - - name of the print queue.

Method Detail

getLock

public Lock getLock()

add

public long add(PrintJob printJob)

add print job to queue.

Returns:

the unique identifier of the print job in the queue.

remove

public PrintJob remove(long id)
                throws ObjectNotFoundException

remove print job from queue.

Returns:

PrintJob from the queue or null if it was not found

Throws:

ObjectNotFoundException

getNextPrintJob

public QueuedPrintJob getNextPrintJob()
                               throws ObjectNotFoundException

Gets the next PrintJob without removing it.

Returns:

PrintJob the next printJob in the queue or null if theres an error

Throws:

ObjectNotFoundException

removeAll

public int removeAll()

remove all print jobs from queue.

Returns:

number of jobs removed, or -1 if this failed

size

public int size()

size of the print queue.

Returns:

size of the print queue.

list

public java.util.List list()

list items in queue.

Throws:

java.lang.ClassCastException - if queue contains non print jobs.

closeQueue

public void closeQueue()