Message queues and expiry HELP

My problem is hopefully a simple one to overcome. Without going totally in depth, i have a Server program that creates JMS Object messages and sends them off to a message Queue. Then i have another program, a client, that recieves and processes the object messages accordingly.
In my case, the server and the client will be on diferent sides of a erroneous wireless setup.
Basically i want messages to be recieved if, and ONLY if, there is a complete connection to the client, if there is no connection there i want the message to expire. I tried using timeToLive(), but that will not suffice, as there is no way i can tell how long the message will take to reach the JMS provvider, and hence the client.
Also in using a message Queue the unrecieved messages build up and the latest messages will not be recieved until all outdated ones are recieved. Is there another generic sort of connection that doesn not allow for the build up of messages? unlike topic and queue?

Hi.
Strange, you are describing the correct behavior for JMS.
The simplest way will be to not use JMS at all.
Since you can't (via JMS) check the connection status, you'd either have to do it
via the provider's mechanism, or use the TTL.
As for the queue you are using for the unreceived messages - thar's also a TTL issue. Set a TTL
and the queue will clear up.
It might be worthwhile to look into the provider's admin options - perhaps you may be ablr to set ttl at
the provider itself, which will mean that you don't mind how long it takes the message to get to the provider - only how long it takes it from the provider to the destination.
Nimo.

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