Events etc.

Trying not to re-invent the wheel - is there a provision in spec or the 
Java ref impl for building
events where a single process/thread can wait on a single statement for 
multiple events from
multiple pipes ? In other words, can a super-pipe be defined that 
aggregates all pipes defined
by a peer and allow it to receive and selectively act upon messages 
coming on all pipes (trying
to avoid looping over all pipes). I may be asking something simple here 
that already exists or
something that I need to some extensive work on - no idea yet. I will 
appreciate the help on
this.

Cheers