[rules-users] Declaring an entry-point? (drools 5 M1)

[Edson Tirelli]

   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/src/test/java/org/drools/integrationtests/StreamsTest.java
https://svn.jboss.org/repos/labs/labs/jbossrules/trunk/drools-compiler/src/test/java/org/drools/integrationtests/CepEspTest.java

  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 at 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
> ------------------------------
> View this message in context: Declaring an entry-point? (drools 5 M1)<http://www.nabble.com/Declaring-an-entry-point--%28drools-5-M1%29-tp19260204p19260204.html>
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-- 
Edson Tirelli
JBoss Drools Core Development
JBoss, a division of Red Hat @ www.jboss.com
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