Controlling subscription queues for topic receivers
queue limits and slow subscriber
my-topic; {link:{x-declare:{arguments:{'qpid.max_count':500}}}}
no-local
You can request that your subscriber does not receive any messages published on that same connection using the no-local option:
my-topic; {link:{x-declare:{arguments:{no-local:True}}}}
reliability and durability
subscription bindings, e.g. subscriptions on XML and headers exchanges, multiple binding patterns etc
Creating shared queues on-demand
queue limits
queue-a; {create: always, node:{x-declare:{arguments:{'qpid.max_count':1000}}}}
queue-b; {create: always, node:{x-declare:{arguments:{'qpid.max_count':1000, 'qpid.max_size':1000000}}}}
LVQs
my-lvq; {create: always, node:{x-declare:{arguments:{'qpid.last_value_queue_key':'qpid.subject'}}}}
priority queues
my-priority-queue; {create: always, node:{x-declare:{arguments:{'x-qpid-priorities':10}}}}
Note that qpid.priorities can be used as an alias for x-qpid-priorities with the c++ broker (i.e. qpidd) for the sake of consistency; the latter is supported by the Java broker as well however.