I am facing some serious blocking issues while writing few rules. In the
rule below, a1, a2 are Double objects. When i have the first statement in
the rule EMIAgainstProperty( obj : a1 ), the rule does not firewhen i
comment and re phrase the second line as emi : EMIAgainstProperty( a2 = ( *
Mark,
Have you released the final version of 4.0.0. Under the download page
http://labs.jboss.com/jbossrules/downloads i see the MR3 listed.
Thanks
Natraj
___
rules-users mailing list
rules-users@lists.jboss.org
Hi,
please list your EMIAgainsProperty class...
Gernot
I am facing some serious blocking issues while writing few rules. In the
rule below, a1, a2 are Double objects. When i have the first statement in
the rule EMIAgainstProperty( obj : a1 ), the rule does not firewhen
i
comment and
On Mon, Jul 16, 2007 at 05:03:28PM +0100, Mark Proctor wrote:
descr's cover the full range of the drl language. I recommend you parse
some drl files into descrs, and look at the creates AST with your
debugger.
Okay, I took some simple example from Drools examples (HelloWorldExample)
When I fire my rules with a giving rule flow I have this exception :
java.lang.ClassCastException: org.drools.common.RuleFlowGroupNode cannot be
cast to org.drools.spi.Activation
at
org.drools.ruleflow.instance.impl.RuleFlowSplitInstanceImpl.trigger(RuleFlowSplitInstanceImpl.java:90)
It seems to be a bug, please could you open a Ticket in jira and
provide additional information for that?
Thanks
Fernando Meyer http://fmeyer.org
[EMAIL PROTECTED]
PGP: 0xD804DDFB
On Jul 18, 2007, at 9:16 AM, Jesse Stockall wrote:
The NoClassDefFoundError exception is thrown from within
You are getting an error at run time. Make sure you include all the required
drools jars in your run time class path. THis will resolve the issue. If you
are using an eclipse launch config, it is very easy to set the class path
jars.
You need to know that compile time libraries and run time
Hello All,
Has anyone faced a situation where a fact gets modified more than once
within a given DRL. The modification is required so that the other rules
properly fire based on the consequence of the earlier.
I am able to get through the modifyRetract() and modifyInsert() once in a
rule
http://wiki.jboss.org/wiki/Wiki.jsp?page=RulesTomcat
Mohammed JBossRules wrote:
Hello,
I'm a new user for JBossRules, and I'm feeling like turning around
since a while, so i thought that sole body could help...
I'm using JBossRules(V4.0.0.12865MR3) on eclipse (Version: 3.3.0 Build
id:
Look ath te PackageBuilder src and the addFromDrl - you'll see there the
first bit of code that builds the descr. Also look the DrlParserTest
which parses code segments and checks the resulting descrs.
Mark
Eugeny N Dzhurinsky wrote:
On Mon, Jul 16, 2007 at 05:03:28PM +0100, Mark Proctor
You do understand that what you have there is a cross product, you'll
need two objects to match against that - were you expecting this to wokr
against and on the same single EMIAgainstProperty object?
Mark
Natraj Gudla wrote:
I am facing some serious blocking issues while writing few rules. In
Someone has a subproject for a solver framework, see the taseree project
at sourceforce, when it has matured it will become part of the main
release in the drools-solver project directory. I'm sure Geoffrey would
love any additional help. I already plan to extend this for Genetic
Algorithms,
heh, can I quote this in my blog?
Actually if people want to send me their findings, don't have to mention
your employers I can do this anonymously, then I'll put them all up
together on the blog :)
Mark
Matt Geis wrote:
Not quite able to say who I work for, but we run a brokerage app for
That would be fantastic, I'm useless at coming up with examples, I think
that's true for most devs :)
The wiki is open to all, and over time we can figure out how to better
present the information - maybe even put it towards part of a book. I
want to wait till the next release (end of this
I have just updated conways game of life example to use ruleflow, the
agenda group one still exists. So execute ConwayAgendaGroupRun and
ConwayRuleFlowGroupRun to run the two examples. AgendaGroupDelegate and
RueFlowDelegate show the two different implementations.
Mark
Natraj Gudla wrote:
hello,
i've got it :); what i shoult import into my build path was not the
core and compiler but all the set contained in the drools library, maybe
that would help someone later
here is the list of jars
antlr-runtime.jar
drools-compiler.jar
drools-core.jar
drools-decisiontables.jar
you have two patterns, there for you need two objects - it's a cross
product. Try using an eval instead of a predicate, then you can bind all
your variables on the first line, and eval them on the next line.
Until you move to 4.0 there is no clean way to do this.
Mark
Natraj Gudla wrote:
Yes,
hello,
Thank you all for your replays; as you've suggested, what i should
import into my build path was not the core and compiler but all the set
contained in the drools library, maybe that would help someone later!
here is the list of jars
antlr-runtime.jar
drools-compiler.jar
drools-core.jar
Mark,
Did you place them at http://labs.jboss.com/jbossrules/downloads . I dont
see them available here.
Thanks
Natraj
On 7/19/07, Mark Proctor [EMAIL PROTECTED] wrote:
I have just updated conways game of life example to use ruleflow, the
agenda group one still exists. So execute
hello,
Thank you all for your replays; as you've suggested, what i should
import into my build path was not the core and compiler but all the set
contained in the drools library, maybe that would help someone later!
here is the list of jars
antlr-runtime.jar
drools-compiler.jar
drools-core.jar
Hi,
We are using Drools VERY succesfuly around 3 years (We started with version
2.x). And it has being so usefull that now we have a very big system running
on more than one customer in telecom market.
Main (Obvious) Advantages:
1-All open source and community envolvment benefits (Well tested
HI,
Thank you all for your replays; as you've suggested, what i should
import into my build path was not the core and compiler but all the set
contained in the drools library, maybe that would help someone later!
here is the list of jars
antlr-runtime.jar
drools-compiler.jar
drools-core.jar
Hello,
I am using drools 3.0.6 for a retail customer.
We have the current problem that we can not add more than 1 rules.
After this, the system increases its memory and runs out of memory.
Is there a limit ?
Thanks
Nicolas Heron
___
rules-users
We are using Maps (HashMaps) in our rules and the only way we have found
to access keys and values in the Map in the when clauses is thru use
on eval() which I know is a big no-no by rules purists. Is there a
better way, maybe some shorthand I'm not familiar with to deal with Maps
in the when
Edson,
I think I've discovered the problem. In the file Rete.java, in the method
assertObject, there is a check for shadow proxy like below:
Class cls = object.getClass();
if ( object instanceof ShadowProxy ) {
cls = cls.getSuperclass();
}
If
Heron,
There is no hard limit on rules, but you may need indeed to tune jvm
configuration to be able to handle such number of rules. Are you running out
of permgen? What are your memory settings?
In your use case, must all the 1 rules be in the same rulebase? Is it
possible to
use double \ in your config. file
ex. D:\\workspace2\\drools-example-brms\\cache
Fernando Meyer http://fmeyer.org
[EMAIL PROTECTED]
PGP: 0xD804DDFB
On Jul 19, 2007, at 9:31 AM, David Nogueras wrote:
Hi, I´m trying to run the brms sample and i get the next output:
Denis,
If you are using latest build from trunk (I'm not sure it already works
in MR3), you can use a simplified MVEL syntax:
when
Person( address[business].phone == )
then
...
end
Although, the above will be converted into an inline-eval. Not as bad as
a top level eval,
Chris,
Right on the spot. I changed other references, but this one passed
unnoticed. The correct is:
Class cls = null;
if ( object instanceof ShadowProxy ) {
cls = ((ShadowProxy)object).getShadowedObject().getClass();
} else {
Edson,
Thanks for incorporating this fix. The good news is that it fixes that
problem.
The bad news for me is that I'm now experiencing a different problem (where
my rules are not firing). I'll look into my new problem a little deeper.
Thanks again.
-Chris West
On 7/19/07, Edson Tirelli
Ouch!
Is all that trouble a result of using JDK proxies in drools? If it is, I
think it is the case of us developing a whole set of unit and integration
tests for this specific scenario, since none of our tests are triggering
errors...
Thanks and please keep me posted of your progress or
I just went no mail because of this. At least with Nabble, I just get one
email per day :)
Matt Geis wrote:
Why is it that the digest comes almost as frequently as individual
emails? I've received eight separate digest emails in the last five
hours, and I can only assume I'll get another
What is the extent of the performance impact caused by using predicate
expressions?
Check( amount == $amount )
or
Check( $amt : amount - (isSameAmount($amt, $amount) )
My understanding is that once asserted the amount property will be
cached in the shadow fact, is the result of
Hello Edson,
It is the modifications in different rule consequences and not the single
one. I have pasted the 4 rules which are involved here...
My frist two rules are mutually exclusive as are the next two. When i
execute, Calculate Business Profit,1 fires, followed by Calcualte AIC. As
soon
If you see the error out of PermSpace you can increase perm space.
Another strategy, is to build the rules, in chunks, say 1000 at a time, take
the Package object, and *then* add it to the rulebase. That may make it
easier.
You will need more then the default space on the heap for this I would
In a sense, yes - but its the result of the comparison that is cached
really.
In the case you described, it is subrule generation. So either side of the
or is like a separate rule.
In version 3, the result of isSameAmount (ie if it was true or false) is
cached.
Things will only be re-checked if
(sorry, the OR was not part of the sample rule: I was just considering
the same rule written in two different ways)
I am seeing a considerable performance problem with my rules and I am
trying to narrow down why. I have a small number or rules but hundreds
of thousands of facts. At first the
37 matches
Mail list logo
