Thanks Edson,
Will try that out. One more question, when my pattern matches against
the event, am I to assume the pattern matching in the order the events
were placed or do I have to define additional matching statements on the
pattern (i.e. comparing against a timestamp) to ensure I am matching
against the most recent event?
HC
Edson Tirelli wrote:
Hello,
It seems you did everything correctly. It seems there is a parser
bug with the "" around the name of the entry point. For now, just
remove the " ", since your entry point is a single word. I will make
sure it gets fixed asap.
Also, a few more unit/integration tests you may want to look at:
https://svn.jboss.org/repos/labs/labs/jbossrules/trunk/drools-compiler/sr...
https://svn.jboss.org/repos/labs/labs/jbossrules/trunk/drools-compiler/sr...
So, you are right to think that fact types are not tied to the
streams... just write "from entry-point" after any pattern to declare
what entry point that fact is coming from. Also, you can assert
regular facts to entry-points. Entry-points are a general abstraction,
whose probably the most known use case is for streams mapping, but not
the only one.
[]s
Edson
2008/9/1 H. Canterburry <canterburry(a)gmail.com
<mailto:canterburry@gmail.com>>
Hey, I am playing around with the new CEP features in 5 M1 and
primarily working off of the blog posts and API doc. I have some
patterns that pull from a stream:
$candle : Candle( $instrument : instrumentSpecification ) from entry-point
"candles"
I have my entry point in the WM:
candlesEntryPoint = this.session.getWorkingMemoryEntryPoint("candles");
I have also defined Candle to be an event in my rule.package file:
import org.test.Candle
declare Candle
@role(event)
end
When I execute my sesson/getWorkingMemoryEntryPoint code above, I
get a null back for the entry point and thus can't insert the
event (Candle). The API docs for the getWorkingMemoryEntryPoint
state that I need to define an entry point in the rules file? Is
that the above part in the rule.package part or is that some other
declaration? If that is a different declaration, is there some
documentation what that would look like? The way I currently
interpret the declare part is that I am designating my Candle
object to be an event rather than a fact. Does that indirectly
also declare an entry point? If so, how can I have heterogeneous
streams with different object types? Thanks HC
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Edson Tirelli
JBoss Drools Core Development
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