Calling queries or collect() from functions
by Miguel Paraz
Hi,
I have a rule like:
rule "Rule1"
when
$fact: Fact1()
$allFacts: ArrayList() from collect(Fact1())
then
insert(new Fact2($allFacts.size()));
end
I want to compute $allFacts inside a function since I will use it across
different rules.
This doesn't work because it is not valid Java syntax:
function int size() {
ArrayList a = ArrayList() from collect(InQueuePredicate());
return a.size();
}
Could I put this in a named query, and call it from a function?
Thanks!
Miguel
13 years, 1 month
Re: [rules-users] Eclipse Debugging Drl file
by benq2188
Hello,
I faced with the same problem. Breakpoints are not being hit by debugger. I
have Eclipse SDK version: 4.2.1 and went through the reference manual of
Drools and followed each step carefully.
-Installed GEF
- Downloaded drools-distribution-5.4.0.Final.zip
-Unzipped it into Eclipse main folder
-Restarted Eclipse
-Defined run time based on the latest Drools project jars included in the
plugin
itself.
-Created Drools Project
-Created new launch configuration for Drools Application.
-Put a breakpoint in the helloworld simple project on the first line of the
section "then".
When I debug it as Drools Application, debugger stops in Java breakpoints
but doesn't stop in drl rule.
Any solutions, how can I fix it?
Thanks in advance.
--
View this message in context: http://drools.46999.n3.nabble.com/Eclipse-Debugging-Drl-file-tp3870257p40...
Sent from the Drools: User forum mailing list archive at Nabble.com.
13 years, 1 month
Drools 5.5.0.CR1 is using a broken cdi-api version
by Cristiano Gavião
Hello,
I'm using Tycho to create a dependency P2 repository (OSGi environment)
containing JBPM 5.4.0.CR1 and DROOLS 5.5.0.CR1.
I got some problem to properly setup the dependencies for the cdi-api.
The bundle knowledge-internal-api has a dependency to cdi-api (version
1.0-SP4), but this version is tied to this:
<groupId>org.jboss.spec.javax.interceptor</groupId>
<artifactId>jboss-interceptors-api_1.1_spec</artifactId>
<version>1.0.0.Beta1</version>
And this 1.0.0.Beta1 version of org.jboss.spec.javax.interceptor was not
well osgified. it doesn't have a Bundle-SymbolicName !
I could handle this problem using a newer version of it:
<dependency>
<groupId>org.jboss.spec.javax.interceptor</groupId>
<artifactId>jboss-interceptors-api_1.1_spec</artifactId>
<version>1.0.1.Final</version>
</dependency>
I won't use cdi anyway, but it could help others that decide to use jbpm
with eclipse.
regards,
Cristiano
13 years, 1 month
Noob desperately needing help
by zaphod
So, we have a massive web-based application with a rules engine powered by
drools 4.0.7...I have a time-based rule that fires, executes about 80% of
the java code, and then just stops. No error, no exception, no nothing...it
just stops. Until I restart the node, all rules processing is suspended.
I've let this process run for 24 hours without intervention, but it really
is hung. And I know it's not in a loop, as I'm outputting console messages,
and I know the exact line that the app is hanging on. I have tried upgrading
to drools 5.4, but we didn't write the kernel of the rules engine, and I'm
not really in the mood to deal with re-writing it, unless I absolutely have
to.
This is the first time I've ever seen anything like this, and this app has
been running for 4 years with no rules-engine issues. We use it
everywhere....we are an EMS research organization supporting 3 states, and
the application uses the rules engine to determine state-based EMS logic.
We also use it as a timing trigger to email notifications to various EMS
personnel to notify them of hospital facility closings, bed availability,
etc.
I have absolutely no idea what the problem is, or how to present it to the
mailing list users in a way that might identify what the issue really
is...so anyone who is game to help, ask me questions, and I'll answer them
as best I can.
Thanks for anyone interested in helping debug this issue....
Paul Cooper
Developer
EMS Performance Improvement Center
Chapel Hill, NC
--
View this message in context: http://drools.46999.n3.nabble.com/Noob-desperately-needing-help-tp4020589...
Sent from the Drools: User forum mailing list archive at Nabble.com.
13 years, 1 month
JTA Persistence, Fact Objects and High Availability
by Miguel Paraz
Hi,
I'm looking at the possibility of using Drools to store the working state
of my app, in the form of rules.
Can JTA Persistence store fact objects? I read that the fact objects must
be Serializable - are there other requirements or caveats?
Can JTA Persistence take care of High Availability? Even if the system goes
down in the middle of a rules computation? Assuming the database handling
the JPA is a HA system.
Thanks!
Miguel
13 years, 1 month
Unsubscribe
by Brenda Chodkowski
Thank you!
Brenda Chodkowski
Software Engineer
brenda.chodkowski(a)ctg.com
Tel: Cell: 716-696-2313 (Monday, Tuesday) * 716-888-3681 (Wednesday, Thursday, Friday)
CTG * 700 Delaware Ave * Buffalo, NY 14209
www.ctg.com
[cid:image001.jpg@01CDB73A.23606B00]
The information transmitted is intended only for the person or entity to which
it is addressed and may contain confidential and/or privileged material. Any
review, retransmission, dissemination or other use of, or taking of any action
in reliance upon, this information by persons or entities other than the
intended recipient is prohibited. If you are not the intended recipient of this
message, please contact the sender and delete this material from this computer.
13 years, 1 month
