On 09/23/2011 07:44 PM, Praveen M wrote:
Hi,
I'm trying to write a simple test to use the priority queues.
I have a couple of questions.
Can I create priority queues on the fly at run-time?
if I use session.createQueue("queueName ;{create: always , node : {type :
queue, durable : true, priority : true}}"); will the queue be created as a
priority queue?
The correct syntax uses an extension in the queue creation:
queueName;{create:always, node:{type:queue,
x-declare:{arguments:{'x-qpid-priorities':2}}}}
The argument specifies how many distinct priorities are supported by the
queue.
Please note that the broker (as required by the AMQP specification)
divides the space from 0 to 9 evenly into priority groups depending on
how many you ask for. For example, if you specify two levels,
priorities 0-4 are equivalent and 5-9 are equivalent with 5-9 being the
higher priority.
I hope this helps.
-Ted
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