MRL event selection clauses

Whether the event being processed triggers the execution of the rule depends on the events's conformance with the selection criteria specified in the rule.

For example, suppose that an event class is defined as follows:

Event selection criteria example

MC_EV_CLASS :
   APPLICATION_UP ISA APPLICATION_EVENT DEFINES
   {
      severity: default = INFO;
   };
END

 The engine receives the following event:

APPLICATION_UP;
   mc_host=babble;
   ...
   status=OPEN;
END

The following rule will accept the instance and will be evaluated:

filter application_events : PASS
APPLICATION_EVENT ($APEV)
   where [
   ....
   ]
...
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