Yes, I think it is a nice idea. I also want to add rule attributes
(and package defaults) for entry points, in case all patterns in a
rule/package should match a specific entry point.
Edson
2010/11/18 Wolfgang Laun <wolfgang.laun(a)gmail.com>:
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 ;-)
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Edson Tirelli
JBoss Drools Core Development
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