[rules-dev] Event type and default entry-point

Wolfgang Laun wolfgang.laun at gmail.com
Thu Nov 18 02:01:40 EST 2010


Using
   X(...) from entry-point "y"
may be used for selecting a subset of events. Given that in STREAM mode
events coming from a single entry-point must be ordered by timestamp but
that it's not necessary to uphold this restriction across different entry
points, I have come up with a use case or two where I have an
n:1-relationship between event types and one entry-point, i.e., all events
of a type are inserted via one entry point, and this results in the
question:

Would it be possible to implement the definition of the default entry point
for an Event or Fact type via a metadata attribute, e.g.:
   declare X
     @role( event )
     @entry-point( y )
   end
so that this
   a) declares the entry-point in the KnowledgeBase (the same way from
entry-point "x" does)
   b) removes the need to use from entry-point with all patterns referring
to X
   c) would still let me override the entry point with a "from entry-point"
clause.

If not discouraged, I'll open a JIRA for an enhancement.

Wolfgang

BTW: Java Zone Trailer, http://www.youtube.com/watch?v=8Px-GHPxB4I (NSFW ;-)
-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://lists.jboss.org/pipermail/rules-dev/attachments/20101118/c407a5d5/attachment.html 


More information about the rules-dev mailing list