On Thu, 2010-12-23 at 09:50 -0800, rliguori wrote:
> "Did you set the priority on the MessageProducer ?"
> >> No, I set the priority of the individual messages. Example:
> >> message.setJMSPriority(9); Why would I set the priority on the producer,
> >> please provide an example and explain, if you don't mind.
>From JMS Spec on Message setPriority:
"Sets the priority level for this message.
JMS providers set this field when a message is sent. This method can be
used to change the value for a message that has been received."
So you can see this method is only applicable after you receive a
message, not when its sent.
The producer is the one that sets the priority on each Message when the
send method is called.
>From MessageProducer JMS API for setPriority
"Sets the producer's default priority.
The JMS API defines ten levels of priority value, with 0 as the lowest
priority and 9 as the highest. Clients should consider priorities 0-4 as
gradations of normal priority and priorities 5-9 as gradations of
expedited priority. Priority is set to 4 by default."
Or you can do it on each Message send via the five argument send method
in MessageProducer:
"public void send(Destination destination,
Message message,
int deliveryMode,
int priority,
long timeToLive)
throws JMSException
Sends a message to a destination for an unidentified message
producer, specifying delivery mode, priority and time to live.
Typically, a message producer is assigned a destination at creation
time; however, the JMS API also supports unidentified message producers,
which require that the destination be supplied every time a message is
sent.
Parameters:
destination - the destination to send this message to
message - the message to send
deliveryMode - the delivery mode to use
priority - the priority for this message
timeToLive - the message's lifetime (in milliseconds)
"
Regards
--
Tim Bish
------------
FuseSource
Email: [email protected]
Web: http://fusesource.com
Twitter: tabish121
Blog: http://timbish.blogspot.com/
