[rules-users] drools-eclipse sources?
Hi everybody, where can i get the sources for drools-eclipse? I remember they were in svn but currently i can't find them there. Cheers Markus ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users
Re: [rules-users] drools-eclipse sources?
On Thu, Jul 3, 2008 at 8:23 AM, Markus Helbig [EMAIL PROTECTED] wrote: Hi everybody, where can i get the sources for drools-eclipse? I remember they were in svn but currently i can't find them there. Cheers Markus Hi Markus, have a look at http://anonsvn.labs.jboss.com/labs/jbossrules/trunk/drools-eclipse/ Best regards Marcus ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users
Re: [rules-users] how to find the rule name
The RHS of the rule uses Java syntax, so you need to declare all vars. You need to declare rulename as a String. Scott Burrows 407-739-7752 On Wed, Jul 2, 2008 at 5:09 PM, Marina [EMAIL PROTECTED] wrote: Hello, I need to know the rule name of the rule that fired in the consequence part of the rule. I tried something like the following, just trying to see if I can get it this way: package mode.simple; import java.lang.String; import java.util.List; import com.emptoris.ecm.domain.ContractRulesData; global java.util.Set approverList; rule testOR_1 dialect java when $data : ContractRulesData (sum 500 || name matches .*important) then approverList.add(approver3, approver4, Level5); ruleName = drools.getRule().getName(); System.out.println(ruleName + is TRUE); end When I'm trying to compile the rule, I'm getting the following error: Builder errors: Rule Compilation error : [Rule name=testOR_1, agendaGroup=MAIN, salience=0, no-loop=false] mode/simple/Rule_testOR_1_0.java (8:391) : ruleName cannot be resolved mode/simple/Rule_testOR_1_0.java (9:452) : ruleName cannot be resolved java.lang.RuntimeException: Unable to compile rules file: testOR_1.drl I must be doing something wrong here... ? thanks! Marina ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users
Re: [rules-users] how to find the rule name
Thanks, Steven, Scott, yes, that worked. The reason I did not do it in the first place is because I was looking for examples of variable declaration in RHS and the only one I found was the PetStore.drl: then System.out.println( Adding free Fish Food Sample to cart ); purchase = new Purchase($order, $fishFoodSample); insert( purchase ); $order.addItem( purchase ); Since the 'purchase' object was not declared using Java syntax I assumed that is the Drools syntax... Maybe it's a typo in the example? I did not run it myself. Anyway, it works now :-) Thanks! Marina - Original Message From: Scott Burrows [EMAIL PROTECTED] To: Rules Users List rules-users@lists.jboss.org Sent: Thursday, July 3, 2008 8:10:35 AM Subject: Re: [rules-users] how to find the rule name The RHS of the rule uses Java syntax, so you need to declare all vars. You need to declare rulename as a String. Scott Burrows 407-739-7752 On Wed, Jul 2, 2008 at 5:09 PM, Marina [EMAIL PROTECTED] wrote: Hello, I need to know the rule name of the rule that fired in the consequence part of the rule. I tried something like the following, just trying to see if I can get it this way: package mode.simple; import java.lang.String; import java.util.List; import com.emptoris.ecm.domain.ContractRulesData; global java.util.Set approverList; rule testOR_1 dialect java when $data : ContractRulesData (sum 500 || name matches .*important) then approverList.add(approver3, approver4, Level5); ruleName = drools.getRule().getName(); System.out.println(ruleName + is TRUE); end When I'm trying to compile the rule, I'm getting the following error: Builder errors: Rule Compilation error : [Rule name=testOR_1, agendaGroup=MAIN, salience=0, no-loop=false] mode/simple/Rule_testOR_1_0.java (8:391) : ruleName cannot be resolved mode/simple/Rule_testOR_1_0.java (9:452) : ruleName cannot be resolved java.lang.RuntimeException: Unable to compile rules file: testOR_1.drl I must be doing something wrong here... ? thanks! Marina ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users
[rules-users] insert a collection/ArrayList of facts
Hello, is it possible to insert an Arraylist of facts like this?: ArraList list; wm.insert (list); And if yes how can I iterate over the list in the when-part of the rule? The rule should be applied to all elements of the inserted list. A short drl-example would be perfect. Kind Regards Thomas ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users
Re: [rules-users] insert a collection/ArrayList of facts
On Thu, Jul 3, 2008 at 2:55 PM, thomas kukofka [EMAIL PROTECTED] wrote: Hello, is it possible to insert an Arraylist of facts like this?: ArraList list; wm.insert (list); And if yes how can I iterate over the list in the when-part of the rule? The rule should be applied to all elements of the inserted list. A short drl-example would be perfect. Kind Regards Thomas Hi Thomas, I'm not sure if this is what you want but I think this should work: rule ItemsFromList when $list : List(); $item : MyObject() from $list; then // do something end Best regards Marcus ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users
RE: [rules-users] Drools optimization
Hello All, I am implementing a Rules Engine with Drools that has a fact count in the millions. I have tried to remove some of the facts from the system to cut down on my load. To do this, a layer has been place over Drools that filters out facts before they enter the system. This approach helps a bit, but it has introduced a new problem. To determine which facts should make their way into the system, a large number a queries are run against working memory. I have placed a fact counter into my system and it suggests every query is inserted into the system as a fact. Due to the large number of queries, the fact counter reported over 40 fact queries were placed into the system. This accounts for 40+% of the facts in the system. This leads me to a couple of questions. First, is the fact counter giving me accurate information? Do all of the queries get entered into working memory, and stay there? Secondly, if all these queries are entered into the system, and stay there, does it effect performance? If that's true, are the queries eventually removed, or do I have to do something explicit to remove them? If anyone has other recommendations for optimizing large fact counts please let me know. Thanks for your time, Dan -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Marcus Ilgner Sent: Thursday, July 03, 2008 9:24 AM To: Rules Users List Subject: Re: [rules-users] insert a collection/ArrayList of facts On Thu, Jul 3, 2008 at 2:55 PM, thomas kukofka [EMAIL PROTECTED] wrote: Hello, is it possible to insert an Arraylist of facts like this?: ArraList list; wm.insert (list); And if yes how can I iterate over the list in the when-part of the rule? The rule should be applied to all elements of the inserted list. A short drl-example would be perfect. Kind Regards Thomas Hi Thomas, I'm not sure if this is what you want but I think this should work: rule ItemsFromList when $list : List(); $item : MyObject() from $list; then // do something end Best regards Marcus ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users
[rules-users] RE: Function Compilation Error when using JANINO
Oh that was my bad, should have checked JANINO specs and saved everyone's time. Thanks a ton! Varun. This message w/attachments (message) may be privileged, confidential or proprietary, and if you are not an intended recipient, please notify the sender, do not use or share it and delete it. Unless specifically indicated, this message is not an offer to sell or a solicitation of any investment products or other financial product or service, an official confirmation of any transaction, or an official statement of Merrill Lynch. Subject to applicable law, Merrill Lynch may monitor, review and retain e-communications (EC) traveling through its networks/systems. The laws of the country of each sender/recipient may impact the handling of EC, and EC may be archived, supervised and produced in countries other than the country in which you are located. This message cannot be guaranteed to be secure or error-free. This message is subject to terms available at the following link: http://www.ml.com/e-communications_terms/. By messaging with Merrill Lynch you consent to the foregoing. ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users
[rules-users] transitive closure
Dear Sir, I am new to Drools and I want to ask how can I implement the classical transitive closure in Drools. For instance we have a bunch of facts edge/2 and the transitive closure: reach(X,Y):- edge(X,Y). reach(X,Y):- edge(X,Z),reach(Z,Y). Should I create classes Edge and Reach with attributes source and target? rule reachDirect when exists( Edge(X,Y) ) then insertLogical( new Reach(X,Y) ); end rule reachIndirect when exists( Edge(X,Z) ) exists( Reach(Z,Y) ) then insertLogical( new Reach(X,Y) ); end Regards, Paul Fodor ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users
[rules-users] Re: transitive closure
On Thu, Jul 3, 2008 at 3:56 PM, Paul Fodor [EMAIL PROTECTED] wrote:
Dear Sir,
I am new to Drools and I want to ask how can I implement the classical
transitive closure in Drools. For instance we have a bunch of facts
edge/2 and the transitive closure:
reach(X,Y):- edge(X,Y).
reach(X,Y):- edge(X,Z),reach(Z,Y).
My current version looks like the following, but it never terminates.
It re-derives reach(c,c) forever.
TransitiveClosure.drl :
package org.drools.examples
import org.drools.examples.TransitiveClosureExample.Edge;
import org.drools.examples.TransitiveClosureExample.Reach;
rule reachDirect
salience 10
when
e : Edge(s1 : source, t1 : target)
not( Reach(source == s1, target == t1) )
then
insertLogical( new Reach(e.getSource(),e.getTarget()) );
System.out.println( Reach + e.getSource() + , + e.getTarget() );
end
rule reachIndirect
salience 10
when
e : Edge(s1 : source, t1 : target)
r : Reach(t2 : target, source == t1 )
not( Reach(source == s1, target == t2) )
then
insertLogical( new Reach(e.getSource(),r.getTarget()) );
System.out.println( Reach + e.getSource() + , + r.getTarget() );
end
TransitiveClosureExample.java :
package org.drools.examples;
import java.io.InputStreamReader;
import org.drools.RuleBase;
import org.drools.RuleBaseFactory;
import org.drools.StatefulSession;
import org.drools.audit.WorkingMemoryFileLogger;
import org.drools.compiler.PackageBuilder;
import org.drools.compiler.PackageBuilderConfiguration;
public class TransitiveClosureExample {
public static void main(final String[] args) throws Exception {
PackageBuilderConfiguration conf = new PackageBuilderConfiguration();
final PackageBuilder builder = new PackageBuilder( conf );
builder.addPackageFromDrl( new InputStreamReader(
TransitiveClosureExample.class.getResourceAsStream(
TransitiveClosure.drl ) ) );
final RuleBase ruleBase = RuleBaseFactory.newRuleBase();
ruleBase.addPackage( builder.getPackage() );
final StatefulSession session = ruleBase.newStatefulSession();
final WorkingMemoryFileLogger logger = new
WorkingMemoryFileLogger( session );
logger.setFileName( log/transitiveClosure );
final Edge edgeAB = new Edge( a,b );
final Edge edgeBC = new Edge( b,c );
final Edge edgeCD = new Edge( c,d );
session.insert( edgeAB );
session.insert( edgeBC );
session.insert( edgeCD );
session.fireAllRules();
logger.writeToDisk();
session.dispose();
}
public static class Edge {
private String source;
private String target;
public Edge() {}
public Edge(String source, String target) {
super();
this.source = source;
this.target = target;
}
public String getSource() {
return source;
}
public String getTarget() {
return source;
}
}
public static class Reach {
private String source;
private String target;
public Reach() {}
public Reach(String source, String target) {
super();
this.source = source;
this.target = target;
}
public void setSource(String source) {
this.source = source;
}
public String getSource() {
return source;
}
public void setTarget(String target) {
this.target = target;
}
public String getTarget() {
return target;
}
}
}
Any sugestion?
Regards,
Paul Fodor
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[rules-users] Re: transitive closure
Even if the package says org.drools.examples, these files are not in
the Drools examples. I am just using that package to write these files
into while testing in Eclipse.
On Thu, Jul 3, 2008 at 4:31 PM, Paul Fodor [EMAIL PROTECTED] wrote:
On Thu, Jul 3, 2008 at 3:56 PM, Paul Fodor [EMAIL PROTECTED] wrote:
Dear Sir,
I am new to Drools and I want to ask how can I implement the classical
transitive closure in Drools. For instance we have a bunch of facts
edge/2 and the transitive closure:
reach(X,Y):- edge(X,Y).
reach(X,Y):- edge(X,Z),reach(Z,Y).
My current version looks like the following, but it never terminates.
It re-derives reach(c,c) forever.
TransitiveClosure.drl :
package org.drools.examples
import org.drools.examples.TransitiveClosureExample.Edge;
import org.drools.examples.TransitiveClosureExample.Reach;
rule reachDirect
salience 10
when
e : Edge(s1 : source, t1 : target)
not( Reach(source == s1, target == t1) )
then
insertLogical( new Reach(e.getSource(),e.getTarget()) );
System.out.println( Reach + e.getSource() + , + e.getTarget() );
end
rule reachIndirect
salience 10
when
e : Edge(s1 : source, t1 : target)
r : Reach(t2 : target, source == t1 )
not( Reach(source == s1, target == t2) )
then
insertLogical( new Reach(e.getSource(),r.getTarget()) );
System.out.println( Reach + e.getSource() + , + r.getTarget() );
end
TransitiveClosureExample.java :
package org.drools.examples;
import java.io.InputStreamReader;
import org.drools.RuleBase;
import org.drools.RuleBaseFactory;
import org.drools.StatefulSession;
import org.drools.audit.WorkingMemoryFileLogger;
import org.drools.compiler.PackageBuilder;
import org.drools.compiler.PackageBuilderConfiguration;
public class TransitiveClosureExample {
public static void main(final String[] args) throws Exception {
PackageBuilderConfiguration conf = new PackageBuilderConfiguration();
final PackageBuilder builder = new PackageBuilder( conf );
builder.addPackageFromDrl( new InputStreamReader(
TransitiveClosureExample.class.getResourceAsStream(
TransitiveClosure.drl ) ) );
final RuleBase ruleBase = RuleBaseFactory.newRuleBase();
ruleBase.addPackage( builder.getPackage() );
final StatefulSession session = ruleBase.newStatefulSession();
final WorkingMemoryFileLogger logger = new
WorkingMemoryFileLogger( session );
logger.setFileName( log/transitiveClosure );
final Edge edgeAB = new Edge( a,b );
final Edge edgeBC = new Edge( b,c );
final Edge edgeCD = new Edge( c,d );
session.insert( edgeAB );
session.insert( edgeBC );
session.insert( edgeCD );
session.fireAllRules();
logger.writeToDisk();
session.dispose();
}
public static class Edge {
private String source;
private String target;
public Edge() {}
public Edge(String source, String target) {
super();
this.source = source;
this.target = target;
}
public String getSource() {
return source;
}
public String getTarget() {
return source;
}
}
public static class Reach {
private String source;
private String target;
public Reach() {}
public Reach(String source, String target) {
super();
this.source = source;
this.target = target;
}
public void setSource(String source) {
this.source = source;
}
public String getSource() {
return source;
}
public void setTarget(String target) {
this.target = target;
}
public String getTarget() {
return target;
}
}
}
Any sugestion?
Regards,
Paul Fodor
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[rules-users] Re: transitive closure
How can I check if an instance was not already inserted?
For instance, my transitive closure works for non-cycled data, but it
re-derives the same relations for cycled data.
TransitiveClosure.drl:
package org.drools.examples
import org.drools.examples.TransitiveClosureExample.Edge;
import org.drools.examples.TransitiveClosureExample.Reach;
rule reachDirect
salience 10
when
e : Edge(s1 : source, t1 : target)
//not( exists( Reach(source == s1, target == t1) ) )
then
insertLogical( new Reach(e.getSource(),e.getTarget()) );
System.out.println( Reach + e.getSource() + , + e.getTarget() );
end
rule reachIndirect
salience 10
when
e : Edge(s1 : source, t1 : target)
r : Reach(t2 : target, source == t1 )
//not( exists( Reach(source == s1, target == t2) ) )
then
insertLogical( new Reach(e.getSource(),r.getTarget()) );
System.out.println( Reach + e.getSource() + , + r.getTarget() );
end
TransitiveClosureExample.java:
package org.drools.examples;
import java.io.InputStreamReader;
import org.drools.RuleBase;
import org.drools.RuleBaseFactory;
import org.drools.StatefulSession;
import org.drools.audit.WorkingMemoryFileLogger;
import org.drools.compiler.PackageBuilder;
import org.drools.compiler.PackageBuilderConfiguration;
public class TransitiveClosureExample {
public static void main(final String[] args) throws Exception {
PackageBuilderConfiguration conf = new PackageBuilderConfiguration();
final PackageBuilder builder = new PackageBuilder( conf );
builder.addPackageFromDrl( new InputStreamReader(
TransitiveClosureExample.class.getResourceAsStream(
TransitiveClosure.drl ) ) );
final RuleBase ruleBase = RuleBaseFactory.newRuleBase();
ruleBase.addPackage( builder.getPackage() );
final StatefulSession session = ruleBase.newStatefulSession();
final WorkingMemoryFileLogger logger = new
WorkingMemoryFileLogger( session );
logger.setFileName( log/transitiveClosure );
final Edge edgeAB = new Edge( a,b );
final Edge edgeBC = new Edge( b,c );
final Edge edgeCD = new Edge( c,d );
final Edge edgeDA = new Edge( d,a );
session.insert( edgeAB );
session.insert( edgeBC );
session.insert( edgeCD );
session.insert( edgeDA );
session.fireAllRules();
logger.writeToDisk();
session.dispose();
}
public static class Edge {
private String source;
private String target;
public Edge() {}
public Edge(String source, String target) {
super();
this.source = source;
this.target = target;
}
public String getSource() {
return source;
}
public String getTarget() {
return target;
}
}
public static class Reach {
private String source;
private String target;
public Reach() {}
public Reach(String source, String target) {
super();
this.source = source;
this.target = target;
}
public void setSource(String source) {
this.source = source;
}
public String getSource() {
return source;
}
public void setTarget(String target) {
this.target = target;
}
public String getTarget() {
return target;
}
}
}
Please tell me if you have any idea.
Thanks,
Paul Fodor
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[rules-users] Comparing Strings (sort order)
I'm trying to figure out how to compare strings in drools. I'd prefer to just be able to say something like: when obj(member string) This doesn't work because the or operations are not allowed (though I saw in a May 6th post Edson gave a pointer to how to add it.) Next I tried using eval(). Based on everything I've read this should work. My problem is getting the syntax correct. My object ActionArchive has a member called mediaPool. I'd like to choose the one with the lowest (alphabetically) mediaPool string. Try one. rule testme when $ar : ActionArchive($mp : mediaPool) not (eval (ActionArchive(getMediaPool().CompareTo($mp)) 0)) then System.out.println(low mp= + $ar.getMediaPool()); end --- Rule Compilation error : [Rule name=junk, agendaGroup=MAIN, salience=0, no-loop=false] rules/Rule_testme_0.java (8:997) : The method getMediaPool() is undefined for the type Rule_junk_0 Try two.. rule testme when $ar : ActionArchive($mp : mediaPool) not (eval (ActionArchive(mediaPool.CompareTo($mp)) 0)) then System.out.println(low mp= + $ar.getMediaPool()); end --- Rule Compilation error : [Rule name=testme, agendaGroup=MAIN, salience=0, no-loop=false] rules/Rule_testme_0.java (8:999) : mediaPool cannot be resolved Thanks for any pointers. Charles p.s. consider this a vote for adding support for Strings ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users
Re: [rules-users] Re: transitive closure
You will have to use regular insert() instead of insertLogical(). This is
because:
rule reachDirect
salience 10
when
e : Edge(s1 : source, t1 : target)
not( Reach(source == s1, target == t1) )
then
insertLogical( new Reach(e.getSource(),e.getTarget()) );
System.out.println( Reach + e.getSource() + , + e.getTarget() );
end
Is initially true, but once the consequence is executed, the insert(new
Reach()) will cause the pattern not(Reach(...)) to become false and so the
object is retracted, causing the recursion.
[]s
Edson
2008/7/3, Paul Fodor [EMAIL PROTECTED]:
On Thu, Jul 3, 2008 at 3:56 PM, Paul Fodor [EMAIL PROTECTED] wrote:
Dear Sir,
I am new to Drools and I want to ask how can I implement the classical
transitive closure in Drools. For instance we have a bunch of facts
edge/2 and the transitive closure:
reach(X,Y):- edge(X,Y).
reach(X,Y):- edge(X,Z),reach(Z,Y).
My current version looks like the following, but it never terminates.
It re-derives reach(c,c) forever.
TransitiveClosure.drl :
package org.drools.examples
import org.drools.examples.TransitiveClosureExample.Edge;
import org.drools.examples.TransitiveClosureExample.Reach;
rule reachDirect
salience 10
when
e : Edge(s1 : source, t1 : target)
not( Reach(source == s1, target == t1) )
then
insertLogical( new Reach(e.getSource(),e.getTarget()) );
System.out.println( Reach + e.getSource() + , + e.getTarget()
);
end
rule reachIndirect
salience 10
when
e : Edge(s1 : source, t1 : target)
r : Reach(t2 : target, source == t1 )
not( Reach(source == s1, target == t2) )
then
insertLogical( new Reach(e.getSource(),r.getTarget()) );
System.out.println( Reach + e.getSource() + , + r.getTarget()
);
end
TransitiveClosureExample.java :
package org.drools.examples;
import java.io.InputStreamReader;
import org.drools.RuleBase;
import org.drools.RuleBaseFactory;
import org.drools.StatefulSession;
import org.drools.audit.WorkingMemoryFileLogger;
import org.drools.compiler.PackageBuilder;
import org.drools.compiler.PackageBuilderConfiguration;
public class TransitiveClosureExample {
public static void main(final String[] args) throws Exception {
PackageBuilderConfiguration conf = new
PackageBuilderConfiguration();
final PackageBuilder builder = new PackageBuilder( conf );
builder.addPackageFromDrl( new InputStreamReader(
TransitiveClosureExample.class.getResourceAsStream(
TransitiveClosure.drl ) ) );
final RuleBase ruleBase = RuleBaseFactory.newRuleBase();
ruleBase.addPackage( builder.getPackage() );
final StatefulSession session = ruleBase.newStatefulSession();
final WorkingMemoryFileLogger logger = new
WorkingMemoryFileLogger( session );
logger.setFileName( log/transitiveClosure );
final Edge edgeAB = new Edge( a,b );
final Edge edgeBC = new Edge( b,c );
final Edge edgeCD = new Edge( c,d );
session.insert( edgeAB );
session.insert( edgeBC );
session.insert( edgeCD );
session.fireAllRules();
logger.writeToDisk();
session.dispose();
}
public static class Edge {
private String source;
private String target;
public Edge() {}
public Edge(String source, String target) {
super();
this.source = source;
this.target = target;
}
public String getSource() {
return source;
}
public String getTarget() {
return source;
}
}
public static class Reach {
private String source;
private String target;
public Reach() {}
public Reach(String source, String target) {
super();
this.source = source;
this.target = target;
}
public void setSource(String source) {
this.source = source;
}
public String getSource() {
return source;
}
public void setTarget(String target) {
this.target = target;
}
public String getTarget() {
return target;
}
}
}
Any sugestion?
Regards,
Paul Fodor
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JBoss Drools Core Development
Office: +55 11 3529-6000
Mobile: +55 11 9287-5646
JBoss, a division of Red Hat @ www.jboss.com
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