Waiting for events
Wednesday, March 31, 2010
1:20 PM
Waiting for mutually exclusive events
<pick>
   <onMessage partnerLink="buyer" 
   <onMessage partnerLink="buyer" 
      <!-- activity to perform order completion -->
</pick>
Pasted from <[link]> 
Taking this apart:
onMessage: first one that is received is processed.
onAlarm: handles timeout events: 3 days 10 hours.