InstanceListener syntax?

[tpark]

Hi folks,

can someone give me the definitive syntax for the InstanceListener?
Also, is it possible to setup an Engine (or Host) level InstanceListener
that would get applied to all context's within said Engine or Host?

Having to add a InstanceListener to every context just to get the old
tomcat 3.2 pre/post Lifecycle event (Init,service,destroy) support is a 
bit onerous.

-Thom