[rules-users] Drools calculation of a date function

2014-06-16 Thread Ravi 
Hi,
 
 I am new to drools. I want to write a function that accepts two strings and 
 returns a date. The two strings are one for the payment frequency and the 
 other for the payment day. Following are my requirements:
 
 1.If the payment frequency is daily, return current date
 2.If the payment frequency is weekly and the payment day is let's say Monday, 
 and the current day is Monday, then return current date. If the current day 
 is Monday and the payment day is Tuesday, return current date + 1. Likewise, 
 if the payment day is Wednesday, return current date + 2.
 3.If the payment frequency is monthly and payment day is 15, retrieve the 
 current month and current year and return MM-15-.
 Please help me write a function for this. Thank you so much in advance.
 

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Re: [rules-users] Semantic of rules with not and coincide

2013-12-06 Thread Ravi Gupta 
Have a question using drools 6 - I am following the example:

Repo looks fine, rules and artifact in:
.m2/repository/org/acme/brms/acmepoc/1.0

code seems straightforward:
  // Install example1 in the local maven repo before to do this
KieContainer kContainer =
ks.newKieContainer(ks.newReleaseId(org.acme.brms, acmepoc, 1.0));

but get:
Exception in thread main java.lang.RuntimeException: Cannot find
KieModule: org.acme.brms:acmepoc:1.0
at
org.drools.compiler.kie.builder.impl.KieServicesImpl.newKieContainer(KieServicesImpl.java:86)
at
com.sample.KieContainerFromKieRepoExample.go(KieContainerFromKieRepoExample.java:15)
at
com.sample.KieContainerFromKieRepoExample.main(KieContainerFromKieRepoExample.java:26)




On Thu, Dec 5, 2013 at 5:22 PM, IK81 m...@kofler.me wrote:

 Dear all,

 I am currently stuck with a problem concerning the use of not and
 conincide. I want to analyze a stream of error code events from a set of
 devices and detect the following situations. Every event has a timestamp
 (long), a device id (String) and an error code (String).

 What I want to detect is the following
 - If I get two events, one with code C1 and one with C2 from a single
 device within 1 minute, it represents a special event combination. The
 order of their appearence is not relevant.
 - If I just get C1 (without the C2 within the time frame), just report
 C1
 - If I just get C2 (without the C1 within the time frame), just report
 C2


 I can successfully detect the special event combination with the
 following rule

 rule Detect combination
 when
  $e1 : Event ($d: device, code == C1)
  $e2 : Event (device == $d, code == C2, this coincides [1m] $e1)
 then
  ... do some output
 end


 Then I tried to implement the detection of C1 only as follows

 rule Detect code C1
 when
 $e1 : Event ($d: device, code == C1)
 not ( $e2 : Event (device == $d, code == C2, this coincides [1m]
 $e1))
 then
  ... do some other output
 end

 My understanding of the rule is that it should fire, if I get the event
 with code C1 and there is no other event with error code C2 for the same
 device that happens within one minute before and after the C1 event. To
 my surprise, the rule fires immediately when I insert an event with
 error code C1. Shouldn't the implementation wait at least 1 minute to be
 sure that no C2 error event will be inserted?


 BTW this is how I insert the events in my test case:

 clock.advanceTime(70,  TimeUnit.SECONDS);
 FactHandle handle1 = ksession.insert( new Event(65000, A, C1)
 );
 ksession.fireAllRules();
 clock.advanceTime( 10, TimeUnit.SECONDS );
 FactHandle handle2 = ksession.insert( new Event(75000, A, C2)
 );
 ksession.fireAllRules();
 clock.advanceTime( 2, TimeUnit.SECONDS );

 And this is mainly the output I get:

 detected code C1 @ 7
event id=44b895e5-7287-404b-8204-3de5690b2360 timestamp=65000
 device=A code=C1
 detected combination @ 8
event id=44b895e5-7287-404b-8204-3de5690b2360 timestamp=65000
 device=A code=C1
event id=fc89715b-fc30-4b12-ab31-a3884dcd4886 timestamp=75000
 device=A code=C2

 Any ideas concerning an alternative solution are highly welcomed.

 Thanks,
 Ingo


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[rules-users] KieContainer kContainer = ks.newKieContaine ....

2013-12-06 Thread Ravi Gupta 
Have a question using drools 6 - I am following the example:

Repo looks fine, rules and artifact in:
.m2/repository/org/acme/brms/acmepoc/1.0

code seems straightforward:
  // Install example1 in the local maven repo before to do this
KieContainer kContainer =
ks.newKieContainer(ks.newReleaseId(org.acme.brms, acmepoc, 1.0));

but get:
Exception in thread main java.lang.RuntimeException: Cannot find
KieModule: org.acme.brms:acmepoc:1.0
at org.drools.compiler.kie.
builder.impl.KieServicesImpl.newKieContainer(KieServicesImpl.java:86)
at
com.sample.KieContainerFromKieRepoExample.go(KieContainerFromKieRepoExample.java:15)
at
com.sample.KieContainerFromKieRepoExample.main(KieContainerFromKieRepoExample.java:26)
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[rules-users] brms depoylment diagrams

2013-07-29 Thread Ravi Gupta 
I am looking for deployment diagrams, from say dev to qa to prod
I know there are several techniques, snapshots, webdav, import/export
entire repo.
Just wondering if there are some diagrams of rules sdlc in multiple
environments
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[rules-users] Entry-Point and Accumluate

2013-06-04 Thread Ravi Gupta 
Is it possible to use both in the same rule? Using Guided Rule Editor?
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[rules-users] entry-point + accumulate in same rule using BRL (Guided Rule Editor)

2013-05-27 Thread Ravi Gupta 
I can't seem to re-create the below in BRL (entry-point + accumulate)

 I want to combine an entry-point and an accumulate function such as (the
below is DRL, which works)

*rule GSS-Sev1-Monitor*
*no-loop true*
*dialect mvel*
*when*
*$ticketStatistics : TicketStatistics( $ID : ID == null )*
*accumulate($supportTicket:SupportTicket( ticketStatisticsID ==
$ID , severity == Sev-1 ) over window:time (5m) from entry-point
gss-support-stream, $num : count( $supportTicket ))*
*then*
*$ticketStatistics.currentTicketCount = $num;*
*update( $ticketStatistics );*
*end*


I can't seem to re-create this in Guvnor (BRL)
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[rules-users] fusion

2013-05-17 Thread Ravi Gupta 
How would one write a rule that checked if say Message has been inserted
into the stream 10 times over the last 30 days?
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[rules-users] Problem deploying 5.3.0 drools server in Tomcat

2012-02-07 Thread Ravi Sundaar 

Hi,
 
When I deploy drools-camel-server-5.3.0.Final.war into tomcat (webapps
folder), I see the following problem. I don't have a problem with the 5.3
Guvnor war file. Any idea what might be going on?
 
INFO: Starting ProtocolHandler [ajp-apr-8009]
Feb 6, 2012 9:06:40 PM org.apache.catalina.startup.Catalina start
INFO: Server startup in 24453 ms
INFO  06-02 21:07:17,196 (NilAuthenticator.java:authenticate:35) All use
rs are guests.
Feb 6, 2012 9:15:00 PM org.apache.catalina.startup.HostConfig deployWAR
INFO: Deploying web application archive C:\apache-tomcat-7.0.25\webapps\drools-c
amel-server-5.3.0.Final.war
Feb 6, 2012 9:15:03 PM org.apache.catalina.loader.WebappClassLoader validateJarF
ile
INFO: validateJarFile(C:\apache-tomcat-7.0.25\webapps\drools-camel-server-5.3.0.
Final\WEB-INF\lib\geronimo-servlet_3.0_spec-1.0.jar) - jar not loaded. See Servl
et Spec 2.3, section 9.7.2. Offending class: javax/servlet/Servlet.class
log4j:WARN No appenders could be found for logger (org.springframework.web.conte
xt.ContextLoader).
log4j:WARN Please initialize the log4j system properly.
 
Thanks,
Ravi.
 

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[rules-users] How to use Salience in a decision table

2008-12-16 Thread Ravi Krishnamurthy 

Hello:
Can Salience be used in a decision table.

Thanks,
Ravi
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Re: [rules-users] Books on Drools

2008-12-10 Thread Ravi Krishnamurthy 

Thanks Mark\Ellen.

Regards,
Ravi

Mark Proctor wrote:

Ravi Krishnamurthy wrote:

Hello:
Could you suggest some books on Drools.
There are no specific Drools books at the moment, some are on the way. 
We list related recommended reading material on the documentation page:

http://labs.jboss.org/drools/documentation.html

Mark


Thanks,
Ravi


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Re: [rules-users] Decision table capabilities

2008-12-10 Thread Ravi Krishnamurthy 

Thanks Sowmya.


Sowmya Yellamilli wrote:

unfortunately not possible
not only decision tables, across all drools implementations

because only 'when -- then' is permitted not 'otherwise'





Ravi Krishnamurthy wrote:
  

Hello:
1) Is it possible to write any if then else kind of rule instead of
stating all the possibilities in a decision table.

For example: if a == 25
   print (success)
 else if a == 10
   print (not bad)
 else
print (try again)

Thanks,
Ravi



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Re: [rules-users] Decision table capabilities

2008-12-10 Thread Ravi Krishnamurthy 

Thanks Greg. Hope you will get your spare time soon :)

Anyway I'm a newbie and don't know how to request the dev. Let me know 
how to  make a request and I will do it.


Regards,
Ravi

Greg Barton wrote:

I've wanted this kind of functionality for a while, and if I have a spare month 
some time and the dev team approves I'll build it in. :)  Don't hold your 
breath, though.  If you want it quicker, bug the devs.

--- On Wed, 12/10/08, Sowmya Yellamilli [EMAIL PROTECTED] wrote:

  

From: Sowmya Yellamilli [EMAIL PROTECTED]
Subject: Re: [rules-users] Decision table capabilities
To: rules-users@lists.jboss.org
Date: Wednesday, December 10, 2008, 1:27 AM
unfortunately not possible
not only decision tables, across all drools implementations

because only 'when -- then' is permitted not
'otherwise'





Ravi Krishnamurthy wrote:


Hello:
1) Is it possible to write any if then else kind of
  

rule instead of


stating all the possibilities in a decision table.

For example: if a == 25
   print (success)
 else if a == 10
   print (not bad)
 else
print (try again)

Thanks,
Ravi



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Nabble.com.

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[rules-users] Decision table capabilities

2008-12-09 Thread Ravi Krishnamurthy 

Hello:
1) Is it possible to write any if then else kind of rule instead of 
stating all the possibilities in a decision table.


For example: if a == 25
  print (success)
else if a == 10
  print (not bad)
else
   print (try again)

Thanks,
Ravi
   

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[rules-users] Books on Drools

2008-12-09 Thread Ravi Krishnamurthy 

Hello:
Could you suggest some books on Drools.

Thanks,
Ravi
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[rules-users] Some questions

2008-12-05 Thread Ravi Krishnamurthy 

Hello:
Could some one give some input for the following questions
1) Can drools read the datas for facts from Excel
2) is Nested rules is supported in Drools
3) can rules communicate across .drl files
4) is there support for looping and collection

Thanks in advance,
Ravi
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Re: [rules-users] How to monitor what rules are fired

2008-10-28 Thread Ravi Krishnamurthy 

Thanks Michael.

I will look into it.

Regards,
Ravi

Michael Rhoden wrote:


Not sure if there are any examples around, but you could use 
AgendaEventListener to see any rules firing.


 


-Michael
- Original Message -
From: Ravi Krishnamurthy [EMAIL PROTECTED]
To: Rules Users List rules-users@lists.jboss.org
Sent: Monday, October 27, 2008 11:31:40 AM GMT -06:00 US/Canada Central
Subject: [rules-users] How to monitor what rules are fired

Hello:
Would like to monitor what rules are fired, how many times it is fired 
etc.


Is it possible to do this with Drools 4.x

Thanks for your help,
Ravi
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[rules-users] How to monitor what rules are fired

2008-10-27 Thread Ravi Krishnamurthy 

Hello:
Would like to monitor what rules are fired, how many times it is fired etc.

Is it possible to do this with Drools 4.x

Thanks for your help,
Ravi
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Re: [rules-users] Turning on and off a particular rule

2008-09-02 Thread Ravi Krishnamurthy 

Pallav:
the enabled keywork works.

In order to do this, the rules need to be updated at runtime. Wondering 
if there is any other way other than updating the rules to get this 
behavior during runtime.


Thanks,
Ravi

Ravi wrote:

Thanks Shyam, will try it out.

*From:* [EMAIL PROTECTED] 
[EMAIL PROTECTED] On Behalf Of Shyam, Pallav 
(MSCIBARRA) [EMAIL PROTECTED]

*Sent:* Monday, September 01, 2008 12:49 PM
*To:* rules-users@lists.jboss.org
*Subject:* Re: [rules-users] Turning on and off a particular rule

To turn off a rule write
enabled false

on the line after the rule name.

Pallav

- Original Message -
From: [EMAIL PROTECTED] 
[EMAIL PROTECTED]

To: Rules Users List rules-users@lists.jboss.org
Sent: Tue Sep 02 02:20:27 2008
Subject: [rules-users] Turning on and off a particular rule

Hello:
Wondering if it is possible to enable or disable a rule after the 
rules are defined in a project.


Thanks,
Ravi



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[rules-users] Turning on and off a particular rule

2008-09-01 Thread Ravi 
Hello:
Wondering if it is possible to enable or disable a rule after the rules are 
defined in a project.

Thanks,
Ravi
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RE: [rules-users] Turning on and off a particular rule

2008-09-01 Thread Ravi 
Thanks Shyam, will try it out.

From: [EMAIL PROTECTED] [EMAIL PROTECTED] On Behalf Of Shyam, Pallav 
(MSCIBARRA) [EMAIL PROTECTED]
Sent: Monday, September 01, 2008 12:49 PM
To: rules-users@lists.jboss.org
Subject: Re: [rules-users] Turning on and off a particular rule


To turn off a rule write
enabled false

on the line after the rule name.

Pallav

- Original Message -
From: [EMAIL PROTECTED] [EMAIL PROTECTED]
To: Rules Users List rules-users@lists.jboss.org
Sent: Tue Sep 02 02:20:27 2008
Subject: [rules-users] Turning on and off a particular rule

Hello:
Wondering if it is possible to enable or disable a rule after the rules are 
defined in a project.

Thanks,
Ravi



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[rules-users] Rule compilation error

2008-08-28 Thread Ravi Krishnamurthy 

Hello:
I had generated the decisiontable using the eclipse plugin for drools 
4.x. using the eclipse the DecisionsampleTest works fine but on running 
it from the command line gets the following error:

/C:\FirstDroolPrj\binjava com.sample.DecisionTableTest
org.drools.rule.InvalidRulePackage: Rule Compilation error : [Rule 
name=HelloWor

ld_11, agendaGroup=MAIN, salience=0, no-loop=false]
   com/sample/Rule_HelloWorld_11_0.java (8:411) : The method 
update(Decisio

nTableTest.Message) is undefined for the type Rule_HelloWorld_11_0
   com/sample/Rule_HelloWorld_11_0.java (9:453) : The method 
update(Decisio

nTableTest.Message) is undefined for the type Rule_HelloWorld_11_0

   at org.drools.rule.Package.checkValidity(Package.java:419)
   at 
org.drools.common.AbstractRuleBase.addPackage(AbstractRuleBase.java:2

92)
   at 
com.sample.DecisionTableTest.readDecisionTable(DecisionTableTest.java

:62)
   at com.sample.DecisionTableTest.main(DecisionTableTest.java:35)
/
Have attached the .xsl and the DecisionTableTest for the reference.

Thanks for your help and time,

Regards,
Ravi



Sample.xls
Description: MS-Excel spreadsheet
package com.sample;

/*
 * Copyright 2005 JBoss Inc
 * 
 * Licensed under the Apache License, Version 2.0 (the License);
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 * 
 *  http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an AS IS BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

import java.io.StringReader;

import org.drools.RuleBase;
import org.drools.RuleBaseFactory;
import org.drools.WorkingMemory;
import org.drools.compiler.PackageBuilder;
import org.drools.decisiontable.InputType;
import org.drools.decisiontable.SpreadsheetCompiler;
import org.drools.rule.Package;

public class DecisionTableTest {

public static final void main(String[] args) {
try {
	
	//load up the rulebase
RuleBase ruleBase = readDecisionTable();
WorkingMemory workingMemory = ruleBase.newStatefulSession();

//go !
Message message = new Message();
message.setMessage(  Hello World fellows );
message.setStatus( Message.HELLO );
workingMemory.insert( message );
workingMemory.fireAllRules();   


} catch (Throwable t) {
t.printStackTrace();
}
}

/**
 * Please note that this is the low level rule assembly API.
 */
	private static RuleBase readDecisionTable() throws Exception {
		//read in the source
final SpreadsheetCompiler converter = new SpreadsheetCompiler();
final String drl = converter.compile( /Sample.xls, InputType.XLS );
		PackageBuilder builder = new PackageBuilder();
		builder.addPackageFromDrl( new StringReader( drl ) );
		Package pkg = builder.getPackage();
		RuleBase ruleBase = RuleBaseFactory.newRuleBase();
		ruleBase.addPackage( pkg );
		return ruleBase;
	}

	public static class Message {
		public static final int HELLO = 0;
		public static final int GOODBYE = 1;
		
		private String message;
		
		private int status;
		
		public String getMessage() {
			return this.message;
		}
		
		public void setMessage(String message) {
			this.message = message;
		}
		
		public int getStatus() {
			return this.status;
		}
		
		public void setStatus( int status ) {
			this.status = status;
		}
	}

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Re: [rules-users] Rule compilation error

2008-08-28 Thread Ravi Krishnamurthy 

Removed the update(m) from the xsl. Then the command line worked fine.

Still not able to understand why it worked inside the eclipse and not 
outside.


regards,
Ravi

Ravi wrote:

Hello:
I had generated the decisiontable using the eclipse plugin for drools 
4.x. using the eclipse the DecisionsampleTest works fine but on 
running it from the command line gets the following error:

/C:\FirstDroolPrj\binjava com.sample.DecisionTableTest
org.drools.rule.InvalidRulePackage: Rule Compilation error : [Rule 
name=HelloWor

ld_11, agendaGroup=MAIN, salience=0, no-loop=false]
com/sample/Rule_HelloWorld_11_0.java (8:411) : The method 
update(Decisio

nTableTest.Message) is undefined for the type Rule_HelloWorld_11_0
com/sample/Rule_HelloWorld_11_0.java (9:453) : The method 
update(Decisio

nTableTest.Message) is undefined for the type Rule_HelloWorld_11_0

at org.drools.rule.Package.checkValidity(Package.java:419)
at 
org.drools.common.AbstractRuleBase.addPackage(AbstractRuleBase.java:2

92)
at 
com.sample.DecisionTableTest.readDecisionTable(DecisionTableTest.java

:62)
at com.sample.DecisionTableTest.main(DecisionTableTest.java:35)
/
Have attached the .xsl and the DecisionTableTest for the reference.

Thanks for your help and time,

Regards,
Ravi



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[rules-users] Split Constraint - Rule flow

2008-06-12 Thread Thalupula Ravi 

Hi,

I've a split constraint as same as LHS of my rule. Whenever i change
condition of rule, i need to change the constraint as well.

It is little bit painful for business users, right?

Is there any way i can keep condition in common place. where constraint
suppose to pick the same condition?

Any suggestions are welcome.

Thanks
Ravi Thalupula
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Re[rules-users] ading incoming connection in Action - Rule flow

2008-06-12 Thread Thalupula Ravi 

Hi,

How can i read the incoming connection of my action ? using MVEL code.

for example:

Start--RuleGroup -- Split -- Action -- End

in above example i need to read the name of Split in Action using MVEL
code.

it seems that current released version of drools, supporting only MVEL code
in Action.  If it is possible through the JAVA, plz let me know how i can
write java code in Action( any configurations?).


Thanks,
Ravi Thalupula
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Re: Re[rules-users] ading incoming connection in Action - Rule flow

2008-06-12 Thread Thalupula Ravi 

Hi Kris,

Thanks for your information.

Actually i have an action, which is common to a couple of splits, so in my
action i need to log(log4j - file appender) that from which split request is
coming from.

I mean to say, on based on incoming split request, different message need to
be log.


http://www.nabble.com/file/p17802310/Action.JPG Action.JPG 
http://www.nabble.com/file/p17802310/Action.jpg 

Thanks,
Ravi Thalupula




Kris Verlaenen wrote:
 
 it seems that current released version of drools, supporting only MVEL 
 code
 The action node allows you to simply execute a piece of code.  While
 Drools 
 4.0.7 only allows you to use mvel fragments, the upcoming Drools 5.x
 release 
 also allows you to use the Java dialect.  It will also allow you to access 
 globals or workingMemory etc.
 
 How can i read the incoming connection of my action ? using MVEL code.
 An action node currently does not have direct access to information about 
 the previous node that triggered the action.  Could you clarify why you 
 would need this?  In Drools5, sharing of information between nodes using 
 globals or the working memory will be possible.  But if you could provide
 a 
 good use case on why you would need access to this information, I could
 see 
 whether it would be possible to expose this kind of information in the 
 action code as well.
 
 Kris
 

 for example:

 Start--RuleGroup -- Split -- Action -- End

 in above example i need to read the name of Split in Action using MVEL
 code.

 in Action.  If it is possible through the JAVA, plz let me know how i can
 write java code in Action( any configurations?).


 Thanks,
 Ravi Thalupula
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Re: Re[rules-users] ading incoming connection in Action - Rule flow

2008-06-12 Thread Thalupula Ravi 

Hi,

is action will support below kind of stuff ?

p : Person( )
modify( p ) { age =20}

i'm getting error like java.lang.ClassCastException: java.lang.Class

if it is possible please let me know right way of doing.

Thanks
Ravi Thalupula
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Re: Re[rules-users] ading incoming connection in Action - Rule flow

2008-06-12 Thread Thalupula Ravi 


Hi Kris,

Thanks a lot for providing valuable information.

All the best for Drools team for their new releases.

Regards,
Ravi Thalupula
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[rules-users] logging

2008-06-11 Thread Thalupula Ravi 

Hi, 

How can i log that where a rule is executed or not for supplied data? If the
rule fires, in 'then' section i can have a log statement. 

How can i log that the rule is not executed??

I need to log in both scenarios.

Thanks,
Ravi Thalupula
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[rules-users] Constants initialize

2008-06-09 Thread Thalupula Ravi 

Hi,

Can some one suggest me how can i initialize a constant (String), which is
common to all rules and the value of constant can able to change by Business
users (BRMS).

I think we can use global variable or fact, but that need to be supplied by
client program and initialized at client side.

I'm expecting initialization at rules side, which can easily maintain by
business users.

Thanks in advance.

Regards,
Ravi Thalupula
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[rules-users] Drools 4.0.7 supports Clustering and DB interaction ?

2008-05-30 Thread Thalupula Ravi 

Hi,

Can some one answer my questions regarding drools support

1. is drools supports clustering?
2. is drools supports Database interactions?

appreciate your help. it would be great for me, if any body provide examples
for above things.



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RE: [rules-users] Drools 4.0.7 supports Clustering and DB interaction ?

2008-05-30 Thread Thalupula Ravi 

Hi Mike,

Thanks for your quick response, just now read about from in the manual.




Anstis, Michael (M.) wrote:
 
 Partial answer.
 
 2. Drools supports database interactions. Have a look at the from clause
 which allows for retrieval of data from outside the working memory.
 
 Cheers,
 
 Mike
 
 -Original Message-
 From: [EMAIL PROTECTED]
 [mailto:[EMAIL PROTECTED] On Behalf Of Thalupula Ravi
 Sent: 30 May 2008 09:13
 To: rules-users@lists.jboss.org
 Subject: [rules-users] Drools 4.0.7 supports Clustering and DB interaction
 ?
 
 
 Hi,
 
 Can some one answer my questions regarding drools support
 
 1. is drools supports clustering?
 2. is drools supports Database interactions?
 
 appreciate your help. it would be great for me, if any body provide
 examples
 for above things.
 
 
 
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 tp17553747p17553747.html
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Re: [rules-users] Advantages and Disadvantages of from

2008-05-30 Thread Thalupula Ravi 

 Hi Marcus,

  Again thanks for your information. Appreciate your help.

 Regards,
 Ravi T


Marcus Ilgner wrote:
 
 Hi,
 
 
 On Fri, May 30, 2008 at 5:06 PM, Thalupula Ravi [EMAIL PROTECTED]
 wrote:

 Hi,

 Can some one describe about advantages and disadvantages of below to
 approaches

 1. Interacting Database for information in rule ( using from or
 something
 else)?

 or

 2. Required information supplied to rules in the form facts at one shot
 by
 client instead of again hitting the database.

 Thanks for your help:handshake:
 
 if you're going to use from in your rules, you should make sure that
 you provide some extra methods in your DAOs instead of only some
 generic getAll() method. This way, if there are some hundred
 thousands records in your database, Drools will not have to
 instantiate an object for each of them since the DAO/database can
 filter out those objects that are not relevant to the use case.
 If, for example, you write some rule that handles order processing,
 you could write a DAO method getUnprocessedOrders() which will
 ignore all orders that are already processed. AFAIK Drools does no
 sharing/caching of objects retrieved via equivalent from calls in
 different rules.
 When planning my current project, I quickly found that manually
 retrieving the objects and inserting them into the working memory gave
 me somewhat more flexibility but that of course depends on the use
 case at hand.
 
 Best regards
 Marcus
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[rules-users] Re: Ant script for creating pkg files

2008-05-29 Thread ravi thalupula 
Hi,

You can use below ant script to build .pkg files

project default=rules name=RuleProject

!-- Uncomment this for Maven Runner --
property name=eclipsepath  value=./
!-- Uncomment this for Eclipse Runner  --
!-- property name=eclipsepath  value=../../..// --
path id=cheese.classpath
pathelement location=${eclipsepath}/build/Beans.jar/
/path

 target name=beans 
tstamp/

echo message=CREATING Beans JAR.../
jar
jarfile=./build/Beans.jar

  fileset
  dir=./bin/
/jar

  /target

path
 pathelement/pathelement
/path
path id=drools.classpath
fileset dir=${eclipsepath}/build/lib/
include name=*.jar/
/fileset
pathelement location=target/
/path

taskdef name=compiler
classname=org.drools.contrib.DroolsCompilerAntTask
classpathref=drools.classpath /

target name=rules 
compiler
srcdir=${eclipsepath}/src/main/rules
tofile=${eclipsepath}/target/cheese.pkg
classpathref=cheese.classpath
binformat=package 
include name=*.drl /
!-- include name=*.brl /
include name=*.xml /
include name=*.dslr / --
/compiler
/target


/project

reference http://www.nabble.com/Ant-compiler-task--td15906277.html#a15907448


Regards,
Ravi T
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