Re: [rules-users] Can't make OR Diverge Gateway (Split OR) work

[Mauricio Salatino]

in the editor, go to the properties panel and select the type option.
did you do that?


On Thu, May 6, 2010 at 5:26 PM, nanic23  wrote:

>
> Hi all,
>
> I have this simple BPMN2 flow.
>
> http://n3.nabble.com/file/n782279/orflow.jpg
>
> When I use a XOR Diverge Gateway "" everything works
> fine.
> It also works fine for AND Diverge Gateway "".
>
> But when I use OR Diverge Gateway "" Drools complains
> that [Split node 'Gateway' [4] has no type.]
>
> http://n3.nabble.com/file/n782279/exeption.jpg
>
> As far as I can see it does have a type of  and this is how
> it looks in the flow definition:
>
>  g:height="49" gatewayDirection="diverging" />
>
> Am I missing something here? Did anyone implemented an OR 
> node in a BPMN2 flow successfully?
>
> I appreciate any help.
>
> Thanks,
>
> Nick.
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[rules-users] Can't make OR Diverge Gateway (Split OR) work

[nanic23]

Hi all,

I have this simple BPMN2 flow.

http://n3.nabble.com/file/n782279/orflow.jpg 

When I use a XOR Diverge Gateway "" everything works fine.
It also works fine for AND Diverge Gateway "". 

But when I use OR Diverge Gateway "" Drools complains
that [Split node 'Gateway' [4] has no type.]

http://n3.nabble.com/file/n782279/exeption.jpg 

As far as I can see it does have a type of  and this is how
it looks in the flow definition:



Am I missing something here? Did anyone implemented an OR 
node in a BPMN2 flow successfully?

I appreciate any help.

Thanks,

Nick.
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Re: [rules-users] Does not execute => builder.addPackageFromDrl(new InputStreamReader(this.getClass().getResourceAsStream(ruleFile)))

[mikexr]

Sorry wrong code

   for (String ruleFile : rules) {
System.out.println("Loading file: " + ruleFile);
builder.addPackageFromDrl(new
InputStreamReader(this.getClass().getResourceAsStream(ruleFile)));
}

Package pkg = builder.getPackage();
ruleBase.addPackage(pkg);

WorkingMemory workingMemory = ruleBase.newStatefulSession();
System.out.println("Inserting fact: " + enrollment);
workingMemory.insert(enrollment);

System.out.println("Firing Rules");
workingMemory.fireAllRules();

} catch (Exception e) {
e.printStackTrace();
}

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Re: [rules-users] Does not execute => builder.addPackageFromDrl(new InputStreamReader(this.getClass().getResourceAsStream(ruleFile)))

[mikexr]

http://n3.nabble.com/file/n782087/drools_api.gif 

no i am using the 5.0 api ( see image )
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Re: [rules-users] Does not execute => builder.addPackageFromDrl(new InputStreamReader(this.getClass().getResourceAsStream(ruleFile)))

[Mauricio Salatino]

You are using the old apis,
take a look at the docs about the 5 version to update your code.
If you are working with maven, it should work on eclipse and netbeans.
I'm a netbeans user and I got all my examples running.


2010/5/6 mikexr 

> Noe using drools 5.
>
> On May 6, 2010 12:08 PM, "salaboy [via Drools - Java Rules Engine]" <[hidden
> email] > wrote:
>
> Are you using Drools 4.x for a particular reason? I suggest you to try with
> 5.x
>
> On Thu, May 6, 2010 at 2:56 PM, mikexr <[hidden 
> email]
> > wrote:
>
> I am trying to execute a proof of concept.  I have some code  that runs a
> rule.  It works in Eclipse, but for some reason doesnt in Netbeans.  I want
> to get it working within a POJO Service Engine in Glassfish ESB and have is
> execute as part of a BPEL orchestration.  It does not throw an exception,
> but it steps over that one piece of code
>
>   public void xmlImpl(String is) throws JAXBException,
> FileNotFoundException, Exception {
>try {
>// unmarshal xml file
>
>//  JAXBElement enrollment =
> jaxbUnmarshalFromInputStream(is);
>EnrollmentRequest enrollment = jaxbUnmarshalFromInputStream(is);
>
>// setup rules engine
>RuleRunner rule = new RuleRunner();
>
>String[] rules = {"../rules/834rules.drl"};
>// execute rules on xml file
>
>try {
>
>
>RuleBase ruleBase = RuleBaseFactory.newRuleBase();
>PackageBuilder builder = new PackageBuilder();
>
>
>for (String ruleFile : rules) {
>System.out.println("Loading file: " + ruleFile);
>builder.addPackageFromDrl(new
> InputStreamReader(this.getClass().getResourceAsStream(ruleFile)));
>}
>
>Package pkg = builder.getPackage();
>ruleBase.addPackage(pkg);
>
>WorkingMemory workingMemory = ruleBase.newStatefulSession();
>Object fact = new Object();
>fact.equals(enrollment);
>System.out.println("Inserting fact: " + fact);
>workingMemory.insert(fact);
>
>System.out.println("Firing Rules");
>workingMemory.fireAllRules();
>
>} catch (Exception e) {
>e.printStackTrace();
>}
>
>// marshall changes out to xml file
>
>jaxbMarshalToOutputStream(enrollment, new
>
> FileOutputStream("F:/data/workspaces/enrollmentPOC/data/xmlenrollment.xml"));
>
>} catch (JAXBException je) {
>je.printStackTrace();
>} catch (IOException ioe) {
>ioe.printStackTrace();
>} finally {
>try {
>} catch (Exception ex) {
>
>
> java.util.logging.Logger.getLogger("global").log(java.util.logging.Level.SEVERE,
> null, ex);
>}
>return;
>}
>
>}
>
>
> If anyone has any suggestions I would appreciate them.  At this point I'm
> stuck
>
> Thanks
> --
> View this message in context:
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>
>
>
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> builder.addPackageFromDrl(new
> InputStreamReader(this.getClass().getResourceAsStream(ruleFile)))
>
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Re: [rules-users] Does not execute => builder.addPackageFromDrl(new InputStreamReader(this.getClass().getResourceAsStream(ruleFile)))

[Wolfgang Laun]

On Thu, May 6, 2010 at 8:56 PM, mikexr  wrote:
>
>
>
>                WorkingMemory workingMemory = ruleBase.newStatefulSession();
>                Object fact = new Object();
>                fact.equals(enrollment);
>                System.out.println("Inserting fact: " + fact);
>                workingMemory.insert(fact);
>

These lines are strange:
   - Inserting a plain Object?
   - Why call equals()?


>                System.out.println("Firing Rules");
>                workingMemory.fireAllRules();

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Re: [rules-users] Does not execute => builder.addPackageFromDrl(new InputStreamReader(this.getClass().getResourceAsStream(ruleFile)))

[mikexr]

Noe using drools 5.

On May 6, 2010 12:08 PM, "salaboy [via Drools - Java Rules Engine]" <
ml-node+781968-2097692314-238...@n3.nabble.com>
wrote:

Are you using Drools 4.x for a particular reason? I suggest you to try with
5.x

On Thu, May 6, 2010 at 2:56 PM, mikexr <[hidden
email]
> wrote:

>
> I am trying to execute a proof of concept.  I have some code  that runs a
> rule.  It works in Eclipse, but for some reason doesnt in Netbeans.  I want
> to get it working within a POJO Service Engine in Glassfish ESB and have is
> execute as part of a BPEL orchestration.  It does not throw an exception,
> but it steps over that one piece of code
>
>   public void xmlImpl(String is) throws JAXBException,
> FileNotFoundException, Exception {
>try {
>// unmarshal xml file
>
>//  JAXBElement enrollment =
> jaxbUnmarshalFromInputStream(is);
>EnrollmentRequest enrollment = jaxbUnmarshalFromInputStream(is);
>
>// setup rules engine
>RuleRunner rule = new RuleRunner();
>
>String[] rules = {"../rules/834rules.drl"};
>// execute rules on xml file
>
>try {
>
>
>RuleBase ruleBase = RuleBaseFactory.newRuleBase();
>PackageBuilder builder = new PackageBuilder();
>
>
>for (String ruleFile : rules) {
>System.out.println("Loading file: " + ruleFile);
>builder.addPackageFromDrl(new
> InputStreamReader(this.getClass().getResourceAsStream(ruleFile)));
>}
>
>Package pkg = builder.getPackage();
>ruleBase.addPackage(pkg);
>
>WorkingMemory workingMemory = ruleBase.newStatefulSession();
>Object fact = new Object();
>fact.equals(enrollment);
>System.out.println("Inserting fact: " + fact);
>workingMemory.insert(fact);
>
>System.out.println("Firing Rules");
>workingMemory.fireAllRules();
>
>} catch (Exception e) {
>e.printStackTrace();
>}
>
>// marshall changes out to xml file
>
>jaxbMarshalToOutputStream(enrollment, new
>
> FileOutputStream("F:/data/workspaces/enrollmentPOC/data/xmlenrollment.xml"));
>
>} catch (JAXBException je) {
>je.printStackTrace();
>} catch (IOException ioe) {
>ioe.printStackTrace();
>} finally {
>try {
>} catch (Exception ex) {
>
>
> java.util.logging.Logger.getLogger("global").log(java.util.logging.Level.SEVERE,
> null, ex);
>}
>return;
>}
>
>}
>
>
> If anyone has any suggestions I would appreciate them.  At this point I'm
> stuck
>
> Thanks
> --
> View this message in context:
> http://drools-java-rules-engine.46999.n3.nabble.com/Does-not-execute-builder-addPackageFromDrl-new-InputStreamReader-this-getClass-getResourceAsStream-r-tp781934p781934.html
> Sent from the Drools - User mailing list archive at Nabble.com.
> ___
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>



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Re: [rules-users] Does not execute => builder.addPackageFromDrl(new InputStreamReader(this.getClass().getResourceAsStream(ruleFile)))

[Mauricio Salatino]

Are you using Drools 4.x for a particular reason? I suggest you to try with
5.x

On Thu, May 6, 2010 at 2:56 PM, mikexr  wrote:

>
> I am trying to execute a proof of concept.  I have some code  that runs a
> rule.  It works in Eclipse, but for some reason doesnt in Netbeans.  I want
> to get it working within a POJO Service Engine in Glassfish ESB and have is
> execute as part of a BPEL orchestration.  It does not throw an exception,
> but it steps over that one piece of code
>
>   public void xmlImpl(String is) throws JAXBException,
> FileNotFoundException, Exception {
>try {
>// unmarshal xml file
>
>//  JAXBElement enrollment =
> jaxbUnmarshalFromInputStream(is);
>EnrollmentRequest enrollment = jaxbUnmarshalFromInputStream(is);
>
>// setup rules engine
>RuleRunner rule = new RuleRunner();
>
>String[] rules = {"../rules/834rules.drl"};
>// execute rules on xml file
>
>try {
>
>
>RuleBase ruleBase = RuleBaseFactory.newRuleBase();
>PackageBuilder builder = new PackageBuilder();
>
>
>for (String ruleFile : rules) {
>System.out.println("Loading file: " + ruleFile);
>builder.addPackageFromDrl(new
> InputStreamReader(this.getClass().getResourceAsStream(ruleFile)));
>}
>
>Package pkg = builder.getPackage();
>ruleBase.addPackage(pkg);
>
>WorkingMemory workingMemory = ruleBase.newStatefulSession();
>Object fact = new Object();
>fact.equals(enrollment);
>System.out.println("Inserting fact: " + fact);
>workingMemory.insert(fact);
>
>System.out.println("Firing Rules");
>workingMemory.fireAllRules();
>
>} catch (Exception e) {
>e.printStackTrace();
>}
>
>// marshall changes out to xml file
>
>jaxbMarshalToOutputStream(enrollment, new
>
> FileOutputStream("F:/data/workspaces/enrollmentPOC/data/xmlenrollment.xml"));
>
>} catch (JAXBException je) {
>je.printStackTrace();
>} catch (IOException ioe) {
>ioe.printStackTrace();
>} finally {
>try {
>} catch (Exception ex) {
>
>
> java.util.logging.Logger.getLogger("global").log(java.util.logging.Level.SEVERE,
> null, ex);
>}
>return;
>}
>
>}
>
>
> If anyone has any suggestions I would appreciate them.  At this point I'm
> stuck
>
> Thanks
> --
> View this message in context:
> http://drools-java-rules-engine.46999.n3.nabble.com/Does-not-execute-builder-addPackageFromDrl-new-InputStreamReader-this-getClass-getResourceAsStream-r-tp781934p781934.html
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[rules-users] Does not execute => builder.addPackageFromDrl(new InputStreamReader(this.getClass().getResourceAsStream(ruleFile)))

[mikexr]

I am trying to execute a proof of concept.  I have some code  that runs a
rule.  It works in Eclipse, but for some reason doesnt in Netbeans.  I want
to get it working within a POJO Service Engine in Glassfish ESB and have is
execute as part of a BPEL orchestration.  It does not throw an exception,
but it steps over that one piece of code

   public void xmlImpl(String is) throws JAXBException,
FileNotFoundException, Exception {
try {
// unmarshal xml file

//  JAXBElement enrollment = 
jaxbUnmarshalFromInputStream(is);
EnrollmentRequest enrollment = jaxbUnmarshalFromInputStream(is);

// setup rules engine
RuleRunner rule = new RuleRunner();

String[] rules = {"../rules/834rules.drl"};
// execute rules on xml file

try {


RuleBase ruleBase = RuleBaseFactory.newRuleBase();
PackageBuilder builder = new PackageBuilder();


for (String ruleFile : rules) {
System.out.println("Loading file: " + ruleFile);
builder.addPackageFromDrl(new
InputStreamReader(this.getClass().getResourceAsStream(ruleFile)));
}

Package pkg = builder.getPackage();
ruleBase.addPackage(pkg);

WorkingMemory workingMemory = ruleBase.newStatefulSession();
Object fact = new Object();
fact.equals(enrollment);
System.out.println("Inserting fact: " + fact);
workingMemory.insert(fact);

System.out.println("Firing Rules");
workingMemory.fireAllRules();

} catch (Exception e) {
e.printStackTrace();
}

// marshall changes out to xml file

jaxbMarshalToOutputStream(enrollment, new
FileOutputStream("F:/data/workspaces/enrollmentPOC/data/xmlenrollment.xml"));

} catch (JAXBException je) {
je.printStackTrace();
} catch (IOException ioe) {
ioe.printStackTrace();
} finally {
try {
} catch (Exception ex) {
   
java.util.logging.Logger.getLogger("global").log(java.util.logging.Level.SEVERE,
null, ex);
}
return;
}

}


If anyone has any suggestions I would appreciate them.  At this point I'm
stuck

Thanks
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[rules-users] Frequently updated facts and truth maintenance

[bill simms]

Hello,

Recently I've been using Drools (version 5.0.1) to build a small sensor
monitoring application and have run into memory consumption issues that seem
to be related to logically inserted facts.  The way it is set up there are
Sensor facts which carry numerically encoded "flags" that can signal certain
properties about that Sensor.  My intent was to create rules to detect these
flags and insert marker facts in order to abstract how flagging is handled
and make it easier for other rules to use this information.  Here is an
example of the rules I'm using:


declare DeltaFlagged
> sensor : Sensor @key
> end



> rule "Delta Flagged"
> agenda-group "delta flag inference"
> auto-focus true
> when
> $sensor:Sensor(eval(isDeltaFlag(flag)))
> then
> DeltaFlagged flagged = new DeltaFlagged();
> flagged.setSensor($sensor);
> insertLogical(flagged);
> end
>

Each Sensor is updated at regular intervals from outside of the rule engine,
several hundred times a day.  Similar to the examples given here (
http://blog.athico.com/2007/03/writing-rules-for-monitoring-and-time.html).
 This works very well for short periods of time.  However, after many
days of operation I can observe a clear memory leak trend.  When I inspect a
memory dump I see that there are many LogicalDependency objects created and
stored by the truth maintenance system (on the order of several million) for
each "flag" fact that has been logically inserted. Only one fact is being
inserted per Sensor as expected.  I am working under the impression that
Drool's truth maintenance should not be recording duplicate dependencies, so
I'm wondering what I have done wrong with the equals() and hashcode()
methods of my objects to cause Drools to treat each activation of this rule
as a new dependency.  My Sensor objects use the default hashcode and equals
methods.  Thank you in advance.

Bill
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Re: [rules-users] drools-server - how to find cause of ERROR 500: Internal Server Error.

[Mauricio Salatino]

Hi Ron,
Are you using the trunk version of the Drools Server project?
can you share with us the messages that you are sending to the server?
Greetings!

On Thu, May 6, 2010 at 12:15 PM, ron riley  wrote:

> Hi
>
> I don't get any log output when I get 500s from drools-server running in
> tomcat 6,  I suspect the error may be caused by something to do with the
> message that is passed in (examples work ok) - is there any way to
> enable log output for 500s, or debug output?
>
> thanks
>
> Ron
>
> Please access the attached hyperlink for an important electronic
> communications disclaimer:
> http://www.lse.ac.uk/collections/planningAndCorporatePolicy/legalandComplianceTeam/legal/disclaimer.htm
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[rules-users] drools-server - how to find cause of ERROR 500: Internal Server Error.

[ron riley]

Hi

I don't get any log output when I get 500s from drools-server running in
tomcat 6,  I suspect the error may be caused by something to do with the
message that is passed in (examples work ok) - is there any way to
enable log output for 500s, or debug output?

thanks

Ron

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Re: [rules-users] rule fires while condition is false

[miguel machado]

I think you need to use "modify" for that to happen. Otherwise, it doesn't
get re-evaluated. Or maybe it did, but you're using the no-loop /
lock-on-active attributes.

_ miguel



On Thu, May 6, 2010 at 3:51 PM, Shai Bentin  wrote:

> It seems that drools did not re evaluate the EnrichedApplication again
> and thus the value of NetRepayement as fas as it was concerned was 0.
>



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Re: [rules-users] Bug in "not" ???

[miguel machado]

glad i could help.
_ miguel



2010/5/6 

>  Actually, in the light of day, I see why it behaved as it did. It doesn’t
> seem to be caused by the AccountHolder as such, but more the Employment
> object – if there are two of them, one with an accountholder and
> BusinessName that met the criteria, and one without, then the rule will fire
> whether the not is used or not, just on different instances of Employment.
>
>
>
> Thanks for triggering the thought process, Miguel.
>
>
>
> *Tom Murphy*
> *Business Process Consultant
> Wells Fargo HCFG - CORE Deal Decisioning Platform
> 800 S. Jordan Creek Parkway | West Des Moines, IA 50266
> MAC: **X2301-01B**
> **Office: **515 324 4853** | **Mobile: 515 423 4334**
> **This message may contain confidential and/or privileged information.  If
> you are not the addressee or authorized to receive this for the addressee,
> you must not use, copy, disclose, or take any action based on this message
> or any information herein.  If you have received this message in error,
> please advise the sender immediately by reply e-mail and delete this
> message.  Thank you for your cooperation.*
>
>
>
> *From:* rules-users-boun...@lists.jboss.org [mailto:
> rules-users-boun...@lists.jboss.org] *On Behalf Of *miguel machado
> *Sent:* Thursday, May 06, 2010 4:19 AM
> *To:* Rules Users List
> *Subject:* Re: [rules-users] Bug in "not" ???
>
>
>
> This is not entirely true: you may have different objects in memory in such
> a way that both fires rule. In this case, if you had two (or more!)
> AccountHolders for the same Employment, each of those having different
> BusinessName's associated, both rules (with and without the 'not') would
> fire.
>
>
>
> Does that make sense?
>
> _ miguel
>
>
>
>
>
>
>
> 2010/5/5 
>
> The following rule fires both when the “not” is there, and also if the
> “not” is commented out. Clearly, both cannot be true, so there is something
> wrong somewhere.
>
>
>
>
> --
> "To understand what is recursion you must first understand recursion"
>
> ___
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>
>


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Re: [rules-users] rule fires while condition is false

[Jared Davis]

Shai wrote:
> 
> --snip--
> I then do some more things and insert the value of NetRepayment value to 
> the EnrichedApplication, I re insert it to the workspace and then I run 
> the rules.
> It seems that drools did not re evaluate the EnrichedApplication again 
> and thus the value of NetRepayement as fas as it was concerned was 0.
> --snip--
> 

For the rules engine to re-evaluate objects, you need to tell it when they
change. Even though the NetRepayment fact was updated in the engine, there
is no link defined in the rules engine between it and the
EnrichedApplication.  I'm assuming the calculation method
getNetRepaymentAmountAbilityIncludingLiabilities() uses this value.

Perhaps it would be worth investigating moving the method implementation to
a rule. If not, ensure that all object/variables used in the method do not
change once the EnrichedApplication is inserted. 


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Re: [rules-users] rule fires while condition is false

[Shai Bentin]

Thanks,

I did this and saw that 'amount' was 0, although netRepayment was 
1.04, after looking at it a bit further I found the problem.

When I create the workspace I insert EnrichedApplicationVersion, I run 
some rules from a different agenda and then I cleared the agenda 
(however did not retract the enrichedApplication).
I then do some more things and insert the value of NetRepayment value to 
the EnrichedApplication, I re insert it to the workspace and then I run 
the rules.
It seems that drools did not re evaluate the EnrichedApplication again 
and thus the value of NetRepayement as fas as it was concerned was 0.

retracting EnrichedApplication or creating a new workspace solves this 
problem.

Thanks.

Shai

בתאריך 06/05/10 17:13, ציטוט Jared Davis:
> Could the rules be changing the values outside of a modify block?
>
>
>
> Please try this (untested) rule as a test.
>
> It binds the value on the left hand side.
>
>
>   rule "netRepaymentWithLiabilities1TEST"
>agenda-group "autoUnderwriting"
>when
>ea: EnrichedApplicationVersionTO(amount :
>  netRepaymentAmountAbilityIncludingLiabilities
>   <= 0.65)
>decision: Decision()
>then
>System.out.println("!!! " + amount +
>" !!! " +
>ea.getNetRepaymentAmountAbilityIncludingLiabilities() );
>decision.setDecision("APPROVED", "NetRepaymentWthLiblt");
>   end
>
>
>
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Re: [rules-users] rule fires while condition is false

[Jared Davis]

Could the rules be changing the values outside of a modify block?



Please try this (untested) rule as a test. 

It binds the value on the left hand side.


 rule "netRepaymentWithLiabilities1TEST"
  agenda-group "autoUnderwriting"
  when
  ea: EnrichedApplicationVersionTO(amount :  
netRepaymentAmountAbilityIncludingLiabilities
 <= 0.65)
  decision: Decision()
  then
  System.out.println("!!! " + amount + 
  " !!! " + 
  ea.getNetRepaymentAmountAbilityIncludingLiabilities() );
  decision.setDecision("APPROVED", "NetRepaymentWthLiblt");
 end



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Re: [rules-users] Bug in "not" ???

[Tom.E.Murphy]

Actually, in the light of day, I see why it behaved as it did. It doesn't seem 
to be caused by the AccountHolder as such, but more the Employment object - if 
there are two of them, one with an accountholder and BusinessName that met the 
criteria, and one without, then the rule will fire whether the not is used or 
not, just on different instances of Employment.

Thanks for triggering the thought process, Miguel.

Tom Murphy
Business Process Consultant
Wells Fargo HCFG - CORE Deal Decisioning Platform
800 S. Jordan Creek Parkway | West Des Moines, IA 50266
MAC: X2301-01B
Office: 515 324 4853 | Mobile: 515 423 4334
This message may contain confidential and/or privileged information.  If you 
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not use, copy, disclose, or take any action based on this message or any 
information herein.  If you have received this message in error, please advise 
the sender immediately by reply e-mail and delete this message.  Thank you for 
your cooperation.

From: rules-users-boun...@lists.jboss.org 
[mailto:rules-users-boun...@lists.jboss.org] On Behalf Of miguel machado
Sent: Thursday, May 06, 2010 4:19 AM
To: Rules Users List
Subject: Re: [rules-users] Bug in "not" ???

This is not entirely true: you may have different objects in memory in such a 
way that both fires rule. In this case, if you had two (or more!) 
AccountHolders for the same Employment, each of those having different 
BusinessName's associated, both rules (with and without the 'not') would fire.

Does that make sense?
_ miguel



2010/5/5 mailto:tom.e.mur...@wellsfargo.com>>
The following rule fires both when the "not" is there, and also if the "not" is 
commented out. Clearly, both cannot be true, so there is something wrong 
somewhere.



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Re: [rules-users] Smooks Data Loader uses

[miguel machado]

Other than the examples shown in the docs, i don't think i can help. I'll
have to ask someone familiar with drools AND smooks.

_ miguel



On Wed, May 5, 2010 at 9:50 AM, JNaylies  wrote:

>
> no one could help me?
>
> maybe something is not clear. Please tell me what ;)
>
> Regards
> Jérôme
> --
> View this message in context:
> http://drools-java-rules-engine.46999.n3.nabble.com/Smooks-Data-Loader-uses-tp773488p778366.html
> Sent from the Drools - User mailing list archive at Nabble.com.
>
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Re: [rules-users] how "exists" works exactly?

[miguel machado]

No idea.. that piece of code works for me, using drools 5.0.1 :-/



2010/5/6 Antonio Neto 

> Oi Miguel,
>
> when I try this in the "doMove" method using the "workingMemory" instead of
> "ksession" I got this error
>
> Exception in thread "main" java.lang.UnsupportedOperationException: this
> is implementedby StatefulKnowledgeImpl
> at org.drools.reteoo.ReteooWorkingMemory.getFactHandles
> (ReteooWorkingMemory.java:363)
> ...
> ...
>
> Any idea?
>
> Obrigado
>
> Antonio
>
>
> 2010/5/6 miguel machado 
>
> Olá Antonio,
>>
>> // retract all of it just in case
>> for (Object fact : ksession.getFactHandles()) {
>>   ksession.retract((FactHandle) fact);
>> }
>>
>> Hope this helps.
>> _ miguel
>>
>>
>>
>> 2010/5/5 Antonio Neto 
>>
>> Hi,
>>>
>>> Thank you very much for all replies.
>>>
>>> I've tried also with not ( EPackage(...)), but the result is the same.
>>>
>>> I think that I remove the EClass from the facts in my solution, but they
>>> continue in my workingMemory.
>>>
>>> How I can see the facts of the workingMemory object (and how remove it)?
>>>
>>> Thanks
>>>
>>> Best regards
>>>
>>> Antonio
>>>
>>> 2010/5/5 
>>>
 Hi Antonio,
 Documentation states that the complement to "not" is "exists", whereas
 "not" keyword is used to match the absence of a fact (in Working Memory),
 and "exists" keyword is used to test the existence of one or more facts (in
 Working memory).

 So if you want to test that a fact is not in working memory, then you
 should  use the
 not(MyClass()) pattern.

 Hope this helps,
 Francois.

 Antonio Neto  a écrit :


 > Any idea? Please...
 >
 > 2010/5/4 Antonio Neto 
 >
 >> Hi all,
 >>
 >> I don't know exactly why I have a problem in my "exists" function.
 I've
 >> tried many different ways, but it does not work. Anybody could help
 me,
 >> please?
 >>
 >>
 >> I have the following rules:
 >>
 >> *rule "diff"
 >> when
 >> $var1: EReference(name == "employee")
 >> $var2: EClass(name == "Company", EAllReferences contains $var1)
 >> not (exists( EPackage(EClassifiers contains $var2 ) ))
 >> then
 >> insertLogical(new IntConstraintOccurrence("diff", 10));
 >> end
 >>
 >> rule "ClassesNotReferenced"
 >> when
 >> $q1 : EClass();
 >> $q2 : EPackage(EClassifiers contains $q1);
 >> not( exists ( EReference(EType == $q1) ));
 >> then
 >> insertLogical(new
 IntConstraintOccurrence("ClassesNotReferenced",
 >> 1, $q1));
 >> end*
 >>
 >>
 >> and in my facts (and my EPackage) I have 4 instances of EClass
 "Company"
 >> with a EReference "employee", and another EClass "Person".  I still
 have a
 >> "move" that removes EClasses in my Drools Solver.
 >>
 >> I need to have only one classe "Company" after processing. But it
 removes
 >> only the EClass "Person", when it was supposed to remove one EClass
 "Person"
 >> and 3 ECLasses "Company". Leaving one EClass "Company" in the end.
 >>
 >> The problem is:  when Drools tries to remove a EClass "Person" it
 thinks
 >> that  the EClass "Company" does not exists. But in fact there are 3
 others.
 >>
 >> Any clue about it, please ?
 >>
 >> Thanks
 >>
 >> Bests regards
 >>
 >> Antonio
 >>
 >>
 >>
 >

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>>
>>
>> --
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>>
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Re: [rules-users] how "exists" works exactly?

[Antonio Neto]

Oi Miguel,

when I try this in the "doMove" method using the "workingMemory" instead of
"ksession" I got this error

Exception in thread "main" java.lang.UnsupportedOperationException: this is
implementedby StatefulKnowledgeImpl
at org.drools.reteoo.ReteooWorkingMemory.getFactHandles
(ReteooWorkingMemory.java:363)
...
...

Any idea?

Obrigado

Antonio


2010/5/6 miguel machado 

> Olá Antonio,
>
> // retract all of it just in case
> for (Object fact : ksession.getFactHandles()) {
>   ksession.retract((FactHandle) fact);
> }
>
> Hope this helps.
> _ miguel
>
>
>
> 2010/5/5 Antonio Neto 
>
> Hi,
>>
>> Thank you very much for all replies.
>>
>> I've tried also with not ( EPackage(...)), but the result is the same.
>>
>> I think that I remove the EClass from the facts in my solution, but they
>> continue in my workingMemory.
>>
>> How I can see the facts of the workingMemory object (and how remove it)?
>>
>> Thanks
>>
>> Best regards
>>
>> Antonio
>>
>> 2010/5/5 
>>
>>> Hi Antonio,
>>> Documentation states that the complement to "not" is "exists", whereas
>>> "not" keyword is used to match the absence of a fact (in Working Memory),
>>> and "exists" keyword is used to test the existence of one or more facts (in
>>> Working memory).
>>>
>>> So if you want to test that a fact is not in working memory, then you
>>> should  use the
>>> not(MyClass()) pattern.
>>>
>>> Hope this helps,
>>> Francois.
>>>
>>> Antonio Neto  a écrit :
>>>
>>>
>>> > Any idea? Please...
>>> >
>>> > 2010/5/4 Antonio Neto 
>>> >
>>> >> Hi all,
>>> >>
>>> >> I don't know exactly why I have a problem in my "exists" function.
>>> I've
>>> >> tried many different ways, but it does not work. Anybody could help
>>> me,
>>> >> please?
>>> >>
>>> >>
>>> >> I have the following rules:
>>> >>
>>> >> *rule "diff"
>>> >> when
>>> >> $var1: EReference(name == "employee")
>>> >> $var2: EClass(name == "Company", EAllReferences contains $var1)
>>> >> not (exists( EPackage(EClassifiers contains $var2 ) ))
>>> >> then
>>> >> insertLogical(new IntConstraintOccurrence("diff", 10));
>>> >> end
>>> >>
>>> >> rule "ClassesNotReferenced"
>>> >> when
>>> >> $q1 : EClass();
>>> >> $q2 : EPackage(EClassifiers contains $q1);
>>> >> not( exists ( EReference(EType == $q1) ));
>>> >> then
>>> >> insertLogical(new
>>> IntConstraintOccurrence("ClassesNotReferenced",
>>> >> 1, $q1));
>>> >> end*
>>> >>
>>> >>
>>> >> and in my facts (and my EPackage) I have 4 instances of EClass
>>> "Company"
>>> >> with a EReference "employee", and another EClass "Person".  I still
>>> have a
>>> >> "move" that removes EClasses in my Drools Solver.
>>> >>
>>> >> I need to have only one classe "Company" after processing. But it
>>> removes
>>> >> only the EClass "Person", when it was supposed to remove one EClass
>>> "Person"
>>> >> and 3 ECLasses "Company". Leaving one EClass "Company" in the end.
>>> >>
>>> >> The problem is:  when Drools tries to remove a EClass "Person" it
>>> thinks
>>> >> that  the EClass "Company" does not exists. But in fact there are 3
>>> others.
>>> >>
>>> >> Any clue about it, please ?
>>> >>
>>> >> Thanks
>>> >>
>>> >> Bests regards
>>> >>
>>> >> Antonio
>>> >>
>>> >>
>>> >>
>>> >
>>>
>>> ___
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>>
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>
>
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Re: [rules-users] Bug in "not" ???

[miguel machado]

This is not entirely true: you may have different objects in memory in such
a way that both fires rule. In this case, if you had two (or more!)
AccountHolders for the same Employment, each of those having different
BusinessName's associated, both rules (with and without the 'not') would
fire.

Does that make sense?
_ miguel



2010/5/5 

> The following rule fires both when the “not” is there, and also if the
> “not” is commented out. Clearly, both cannot be true, so there is something
> wrong somewhere.




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Re: [rules-users] rule fires while condition is false

[miguel machado]

Hi there,

er.. why don't you remove your "eval" and just evaluate in the object
binding?

$var = TypeOfObject( netRepaymentAmountAbilityIncludingLiabilities <= 0.65)

Other than that, i don't think a lotta people are still using drools4 and i
have no idea why that is happening. Apparently, it makes no sense :-/
_ miguel


On Thu, May 6, 2010 at 5:53 AM, Shai Bentin  wrote:

> I'm running drools 4. It has been running for a long time with no issues.
>
> I have this weird issue now and I'm wondering what can explain this.
>
> I have the following rule defined.
>
> rule "netRepaymentWithLiabilities1"
> agenda-group "autoUnderwriting"
> when
> #conditions
> enrichedApplication: EnrichedApplicationVersionTO()
> eval
> (enrichedApplication.getNetRepaymentAmountAbilityIncludingLiabilities()
> <= 0.65)
> decision: Decision()
> then
> #actions
> System.out.println("!! " +
> (enrichedApplication.getNetRepaymentAmountAbilityIncludingLiabilities()
> <= 0.65));
> decision.setDecision("APPROVED", "NetRepaymentWthLiblt");
> end
>
> This rule invokes although
> 'enrichedApplication.getNetRepaymentAmountAbilityIncludingLiabilities()'
>  > 1.
> More over in the then part it prints 'false', so how come it invoked
> while the condition is not fulfilled? What can cause this?
>
> Shai
>
>
>
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Re: [rules-users] how "exists" works exactly?

[miguel machado]

Olá Antonio,

// retract all of it just in case
for (Object fact : ksession.getFactHandles()) {
  ksession.retract((FactHandle) fact);
}

Hope this helps.
_ miguel



2010/5/5 Antonio Neto 

> Hi,
>
> Thank you very much for all replies.
>
> I've tried also with not ( EPackage(...)), but the result is the same.
>
> I think that I remove the EClass from the facts in my solution, but they
> continue in my workingMemory.
>
> How I can see the facts of the workingMemory object (and how remove it)?
>
> Thanks
>
> Best regards
>
> Antonio
>
> 2010/5/5 
>
>> Hi Antonio,
>> Documentation states that the complement to "not" is "exists", whereas
>> "not" keyword is used to match the absence of a fact (in Working Memory),
>> and "exists" keyword is used to test the existence of one or more facts (in
>> Working memory).
>>
>> So if you want to test that a fact is not in working memory, then you
>> should  use the
>> not(MyClass()) pattern.
>>
>> Hope this helps,
>> Francois.
>>
>> Antonio Neto  a écrit :
>>
>>
>> > Any idea? Please...
>> >
>> > 2010/5/4 Antonio Neto 
>> >
>> >> Hi all,
>> >>
>> >> I don't know exactly why I have a problem in my "exists" function. I've
>> >> tried many different ways, but it does not work. Anybody could help me,
>> >> please?
>> >>
>> >>
>> >> I have the following rules:
>> >>
>> >> *rule "diff"
>> >> when
>> >> $var1: EReference(name == "employee")
>> >> $var2: EClass(name == "Company", EAllReferences contains $var1)
>> >> not (exists( EPackage(EClassifiers contains $var2 ) ))
>> >> then
>> >> insertLogical(new IntConstraintOccurrence("diff", 10));
>> >> end
>> >>
>> >> rule "ClassesNotReferenced"
>> >> when
>> >> $q1 : EClass();
>> >> $q2 : EPackage(EClassifiers contains $q1);
>> >> not( exists ( EReference(EType == $q1) ));
>> >> then
>> >> insertLogical(new
>> IntConstraintOccurrence("ClassesNotReferenced",
>> >> 1, $q1));
>> >> end*
>> >>
>> >>
>> >> and in my facts (and my EPackage) I have 4 instances of EClass
>> "Company"
>> >> with a EReference "employee", and another EClass "Person".  I still
>> have a
>> >> "move" that removes EClasses in my Drools Solver.
>> >>
>> >> I need to have only one classe "Company" after processing. But it
>> removes
>> >> only the EClass "Person", when it was supposed to remove one EClass
>> "Person"
>> >> and 3 ECLasses "Company". Leaving one EClass "Company" in the end.
>> >>
>> >> The problem is:  when Drools tries to remove a EClass "Person" it
>> thinks
>> >> that  the EClass "Company" does not exists. But in fact there are 3
>> others.
>> >>
>> >> Any clue about it, please ?
>> >>
>> >> Thanks
>> >>
>> >> Bests regards
>> >>
>> >> Antonio
>> >>
>> >>
>> >>
>> >
>>
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Re: [rules-users] Need Sample Java Code

[miguel machado]

You can also write your rules in DRL which is much, much easier (especially
in eclipse) and then convert it to XML, like this:

public static synchronized String convertDrlToXmlRule(String drlRule)
throws DroolsParserException {
DrlParser parser = new DrlParser();
PackageDescr descr = parser.parse(drlRule);
XmlDumper dumper = new XmlDumper();
String xmlDumped = dumper.dump(descr);
// XmlPackageReader xmlReader = new XmlPackageReader();
return xmlDumped;
}

Also, there are some examples in the documentation pages.
_ miguel



2010/5/5 Esteban Aliverti 

> You can always take a look at the tests in the source code.
>
> 2010/5/5 ashok kumar 
>
>> Hi Team,
>>
>> I need sample java code that on Drools v5.0.. can anyone share the rule
>> XML file format along with the sample code
>> that fires the rules defined in XML? Do i need to save the file with
>> '.xml' extension or it will be XML data in .drl file?
>> Please throw some light on this..
>>
>> Thanks,
>> JFly.
>>
>>
>>
>>
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>
> --
> 
>
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>
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Re: [rules-users] Chained Rules

[miguel machado]

there is the 'extends' feature.. i guess that's what you're looking for.

rule "xyz"
...
end

rule "abc" extends "xyz"...
...
end

it's been recently talked about in this forum.
_ miguel


On Tue, May 4, 2010 at 10:46 AM, djb  wrote:

>
> Hi all,
>
> I know there are some basic ways to chain rules together, by setting flags
> in consequences that are checked in the conditions of other rules...
>
> but in a large system based on rule templates, where thousands of rules are
> generated, it is not feasible to chain rules in this manner, especially
> when
> they are chained in a somewhat arbitrary fashion
> (eg. True if Rule 130 AND Rule 200 AND Rule 480 fire)
>
> has anyone had this situation before?  would I need to execute this as a
> post-processing step?  or, is there any design pattern that will allow
> rules
> to be chained, preferably in a manageable way?
>
> regards,
> Daniel
> --
> View this message in context:
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Re: [rules-users] expert: usage of ruleflow-groups

[miguel machado]

oh!

I'm so sorry... typos in XML are impossible to detect :(
Again, thank you so much for your help. I'll correct this and will use the
agenda-groups the way you suggested.

_ miguel



On Wed, May 5, 2010 at 10:01 AM, Wolfgang Laun wrote:

> How did you specify the agenda group in the XML? There aren't much
> checks being done in XML handling, so it's easy to slip up. Here's how
> I interpret the XML schema:
>
> 
>  
>   ...
>
> -W
>
>
>
>
> 2010/5/5 miguel machado :
> > Hi,
> > Yeah, i think this might be a bug indeed. I just tried converting to DRL
> > using the "dumper" and the agenda-group item doesn't show up in the
> > generated DRL file. It is possible that that this tag isn't being
> > interpreted for the same reason it isn't being converted into the DRL
> > format. Can someone please confirm this?
> > Anyway, if this doesn't work.. is there any kind of workaround? Maybe
> using
> > ruleflow-group's or any other technique?
> > Thank you.
> > _ miguel
> >
> >
> > On Wed, May 5, 2010 at 9:11 AM, Wolfgang Laun 
> > wrote:
> >>
> >> If you don't have auto-focus, rules from other agenda groups should not
> >> fire.
> >> XML should not matter. A bug might be possible, e.g., due to
> >> misinterpretation
> >> of the rules in XML.
> >> -W
> >>
> >
> >
> > --
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