A small doubt
by Manohar Kokkula
Hi
I am new to drools and going through its documentation on the website. I
have installed Drools - Expert and Guvnor (BRMS). My question is : Is
Drools Guvnor also a rule engine or do we use Guvnor just to manage the
rules, packages etc. How does Guvnor link with the Drools Rule Engine.
Thanks & Regards,
Manohar
Mailto: manohar.kokkula(a)tcs.com
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14 years, 11 months
declaring attributes for an existing class
by Neel
Hi,I've following class defined:public class User {
private String id;
//get,set, equals & hashCode method are defined
}
If I add more attributes using declare syntax as below:declare User name : Stringend
it gives error "Error creating field accessors for 'User' for type 'User'". Is there a way, more attributes can be added in existing class using declare syntax?
Alternatively, if a class is created by using only declare syntax, can we add equals/hasCode methods dynamically?
Thanks & Regards,Neel
14 years, 11 months
source of activity listener log entries
by lhorton
In my application that drives the rules engine, I have created my own
SystemEventListener that writes to my application log4j log file. I also
have also created my own AgendaEventListener to log to log4j, and have added
it to my stateless knowledge sessions. This is working fine and the
expected log entries show up in the correct application log.
However, there are also things being logged to my tomcat server log
(catalina.out). The entries look like this:
ACTIVATION CREATED rule:JobWorkflowRepeat activationId:JobWorkflowRepeat [2]
declarations: $daemon=Thread[Thread-29,5,main](2)
OBJECT ASSERTED value:Thread[Thread-29,5,main] factId: 2
BEFORE ACTIVATION FIRED rule:JobWorkflowRepeat
activationId:JobWorkflowRepeat [2] declarations:
$daemon=Thread[Thread-29,5,main](2)
AFTER ACTIVATION FIRED rule:JobWorkflowRepeat activationId:JobWorkflowRepeat
[2] declarations: $daemon=Thread[Thread-29,5,main](2)
I would like to get control over these log entries, to suppress some and to
route others to my application log. Where are these coming from? I have
not explicitly set up any listeners other than the ones I specified above.
I don't remember seeing these entries before 5.2.0.
thanks for any advice.
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14 years, 11 months
drools error: Unable to create restriction
by sam
I am getting the following error when running a drl script:
Unable to create restriction '[QualifiedIndentifierRestr:
Anyone can throw more light on what the issue is?
Here is my complete test set up:
public class InnerBean {
private int testVal = 100;
public int getTestVal() {
return testVal;
}
public void setTestVal(int testVal) {
this.testVal = testVal;
}
}
public class ValidationBean {
private int actualTestVal = 200;
private InnerBean innerBean= new InnerBean ();
public int getActualTestVal() {
return actualTestVal;
}
public void setActualTestVal(int actualTestVal) {
this.actualTestVal = actualTestVal;
}
public InnerBean getInnerBeanl() {
return innerBean;
}
public void setInnerBeanl(InnerBean argInnerBean) {
innerBean = argInnerBean;
}
}
The drl script is
package droolsbook.dsl;
import com.wellsfargo.mortgage.camr.model.hibernate.*;
import com.wellsfargo.mortgage.camr.model.service.drools.*;
rule "Threshold rule 1"
when
$bean: ValidationBean ( actualTestVal > innerBean.testVal )
then
--failure
end
The ValidationBean ($bean) is inserted into drools working memory.
Thanks in advance
Sam
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14 years, 11 months
Unable to create restriction error
by sam
I am getting the following error when running a drl script:
Unable to create restriction '[QualifiedIndentifierRestr:
Anyone can throw more light on what the issue is?
Here is my complete test set up:
public class InnerBean {
private int testVal = 100;
public int getTestVal() {
return testVal;
}
public void setTestVal(int testVal) {
this.testVal = testVal;
}
}
public class ValidationBean {
private int actualTestVal = 200;
private InnerBean innerBean= new InnerBean ();
public int getActualTestVal() {
return actualTestVal;
}
public void setActualTestVal(int actualTestVal) {
this.actualTestVal = actualTestVal;
}
public InnerBean getInnerBeanl() {
return innerBean;
}
public void setInnerBeanl(InnerBean argInnerBean) {
innerBean = argInnerBean;
}
}
The drl script is
package droolsbook.dsl;
import com.wellsfargo.mortgage.camr.model.hibernate.*;
import com.wellsfargo.mortgage.camr.model.service.drools.*;
rule "Threshold rule 1"
when
$bean: ValidationBean ( actualTestVal > innerBean.testVal )
then
--failure
end
The ValidationBean ($bean) is inserted into drools working memory.
Thanks in advance
Sam
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14 years, 11 months
Merging two XML rules into a single XML file
by mcbonz
Hi All,
I'm currently trying to merge two (or more) rule packages in XML syntax into
a single XML Document.
I tryed to use a PackageBuilder to join multiple PackageDescr. My problem is
that the XmlDumper expects a PackageDescr and there seems to be no way to
get a PackageDescr out of a PackageBuilder.
Here is what I tryed:
Document ruledom;
XMLOutputter outputter = new XMLOutputter();
String rulestring = outputter.outputString(ruledom);
ByteArrayInputStream in = new ByteArrayInputStream(rulestring.getBytes());
PackageDescr pack = xmlr.read(in);
builder.addPackage(pack);
XmlDumper dumper = new XmlDumper();
dumper.dump(?);
Is there any possibility to get a PackageDescr out of the PackageBuilder?
Is there another way to merge XML rule files?
Any help is appreciated
Thanks, Ben
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14 years, 11 months
Rule Flow in Guvnor 5.2
by Sumeet Karawal
Hi,
Is there a possibility that we can create/edit a RuleFlow in Guvnor 5.2.
I have read the documents where it mentions the creation of Rule Flow in
Eclipse IDE and then importing the .rfm file in Guvnor, is there a way that
we can have the whole functionality of creating/editing Ruleflow in Guvnor
only. I searched for it and found something related to Orxy designer but
not able to get the whole thing. Can anybody help me on this.
Thanks & Regards,
Sumeet
Mailto: sumeet.karawal(a)tcs.com
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confidential or privileged information. If you are
not the intended recipient, any dissemination, use,
review, distribution, printing or copying of the
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and/or attachments to it are strictly prohibited. If
you have received this communication in error,
please notify us by reply e-mail or telephone and
immediately and permanently delete the message
and any attachments. Thank you
14 years, 11 months
Deployment Problem with .pkg Files
by Oli Blub
Hi to all,
when i found out that the build in selector only works for binary package i
wanted to switch. So i downloadet the .pkg File, copied it to the execution
server and changed the changeset to :
<add>
<resource source="classpath:/bhc_material/f/Test.pkg" type="PKG" />
</add>
By restarting the server i can't get it work. For .drl File it works fine. :
Did I do something wrong? I work with Guvnor 5.0.0. Does anybody know if it
works for Guvnor 5.2?
16.08.2011 11:02:25 org.apache.catalina.core.StandardContext listenerStart
SCHWERWIEGEND: Exception sending context initialized event to listener
instance of class org.springframework.web.context.ContextLoaderListener
org.springframework.beans.factory.BeanCreationException: Error creating bean
with name 'pmqkbase1': Invocation of init method failed; nested exception is
java.lang.RuntimeException: java.io.OptionalDataException
14 years, 11 months
[guvnor] web decision table/action with formula value instead of literal
by dhartford
Hey all,
I'm still new to Drools, so maybe my expectations are incorrect, but I
thought I would ask --
In the guvnor (5.2 final) web decision table editor, the 'action' columns
seem to only accept literal values and not allow formula/expression based
values.
Is this intentional? I've made a bunch of normal rules, but from a 'batch
edit/review' where there are a lot of similarities I thought I would put
them in a Decision Table...but the actions (on specific fields) are all
formula/expression values, not literal.
thoughts? thanks!
-D
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14 years, 11 months
