Re: [rules-users] Human Task Example
Hi, sorry for the delay. I'm not a fan of the eclipse plug-in but I think that it works for testing purpose. The idea of that is to see that your processes are working right. I will never give my users Eclipse to complete their daily tasks. I always recommend creating your UI using the Human Tasks API's (the one used in the Eclipse Plugin). You can also use the GWT console, that is not in a stable release, but it works well enough. (Once again, I always recommend to build your custom UIs for your specific case) On Sun, Jan 24, 2010 at 9:49 PM, Chuck.KS chuck.irvine...@gmail.com wrote: Guess I'll try again. Does anyone have a pointer to a worked out Human Task example? Having trouble putting it all together. Thanks Chuck.KS wrote: Hello. Is there a complete Human Task example that someone could point me to? I'm looking for an example that uses the Eclipse task plugin to allow users to complete tasks. Thanks! -Chuck ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users -- View this message in context: http://n3.nabble.com/Human-Task-Example-tp131011p137297.html Sent from the Drools - User mailing list archive at Nabble.com. ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users -- - http://salaboy.wordpress.com - http://www.jbug.com.ar - Salatino Salaboy Mauricio - ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users
Re: [rules-users] Human Task Example
Hi What do u have as a problem running the human task? did u run the taskservice? u cant start a humantask flow as long as u dont have a TaskService? -- View this message in context: http://n3.nabble.com/Human-Task-Example-tp131011p138073.html Sent from the Drools - User mailing list archive at Nabble.com. ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users
Re: [rules-users] Better Performance and Maintainability?
Anybody? Any input? Thanks -- View this message in context: http://n3.nabble.com/Better-Performance-and-Maintainability-tp136941p138133.html Sent from the Drools - User mailing list archive at Nabble.com. ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users
Re: [rules-users] Are knowledgebases configurable?
Anybody? Any input ? Thanks -- View this message in context: http://n3.nabble.com/Are-knowledgebases-configurable-tp135809p138135.html Sent from the Drools - User mailing list archive at Nabble.com. ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users
Re: [rules-users] Better Performance and Maintainability?
POJO is the way to go on all three counts: 1 - Data members in a class will be more efficient than a Map. A Map requires one MapEntry instance for each entry. Also, primitive data types would require boxing into the java object equivalents. Both introduce unnecessary inefficiency. 2 - A Map based approach is certainly more flexible. 3 - Both are equally reusable, but since POJO is compiled I generally find it easier to debug. There's no reason why you have to go completely in one direction or another. If there are data members that are known to not change, put them in a POJO. A POJO can have a map in it for additional, future fields. --- On Sun, 1/24/10, HonorGod jagadeesh.motama...@barclayscapital.com wrote: From: HonorGod jagadeesh.motama...@barclayscapital.com Subject: [rules-users] Better Performance and Maintainability? To: rules-users@lists.jboss.org Date: Sunday, January 24, 2010, 10:38 AM Hi, Can someone plz help me understand performance and maintainability in the following scenario - ? I load tons of rows of data from database and store them in an object fact model [POJO based] and apply the rules using decision tables and finally persist data. vs I load tons of rows of data from database and store them in an object fact model [HashMap - Key - Value] and apply the rules using decision tables and finally persist data. The difference in the above two scenarios is that one of them is pojo based and the other is key-value pairs that are used on LHS of the decision tables. When I use Key-Value approach I had to do lot of conversion in terms converting the conditions into eval statements and validations but where as the pojo approach is very straight forward and less validations. Which approach gives me better performance and maintainability? I would consider the following before I make a decision - 1 - size of data 2 - frequency at which the data changes [in terms of adding new conditions / adding new columns / removal of new columns etc] 3 - re-usability Thank You! -- View this message in context: http://n3.nabble.com/Better-Performance-and-Maintainability-tp136941p136941.html Sent from the Drools - User mailing list archive at Nabble.com. ___ 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] Better Performance and Maintainability?
Thanks for your input. -- View this message in context: http://n3.nabble.com/Better-Performance-and-Maintainability-tp136941p138189.html Sent from the Drools - User mailing list archive at Nabble.com. ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users
Re: [rules-users] Better Performance and Maintainability?
The things you mentioned about hashmap are true. But the only concern in terms of flexibility - if I were to add a new column / condition in my database / drools, it will be a new release because I need to update my pojo to reflect new changes. Updating decision table / rules is not problem because you got to do so if some rule is added. Thank you, Jagadeesh. -- View this message in context: http://n3.nabble.com/Better-Performance-and-Maintainability-tp136941p138193.html Sent from the Drools - User mailing list archive at Nabble.com. ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users
[rules-users] Drools Inference and Truth Maintenance for good rule design and maintenance
http://blog.athico.com/2010/01/drools-inference-and-truth-maintenance.html http://blog.athico.com/2009/11/what-is-inference-and-how-does-it.html Mark ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users
Re: [rules-users] collection contains problem
Hello Edson,
Thanks for your reply. Yes, I believe I am implementing equals and hashCode
property in the StatusProperty class:
@Override
public boolean equals(Object o) {
if (this == o) return true;
if (o == null || getClass() != o.getClass()) return false;
StatusProperty that = (StatusProperty) o;
if (!name.equals(that.name)) return false;
if (!value.equals(that.value)) return false;
return true;
}
@Override
public int hashCode() {
int result = name.hashCode();
result ^= value.hashCode();
return result;
}
Yes, I am adding to the properties list before inserting the TrainingStatus
object into the session.
Also, I tried changing from update to modify and it broke the rule. I'm using
Drool 5.0.1, has that method been deprecated?
Thanks again for your help,
Mike
On Jan 24, 2010, at 6:36 AM, Edson Tirelli wrote:
The rule looks fine, so the problem is somewhere else:
* Are you properly implementing the equals()/hashcode() methods in the
StatusProperty class? or are you checking for the exact same instance (in
which case the defaul equals()/hashcode() would work)
* are you adding the properties to the TrainingStatus.properties collection
before inserting TrainingStatus into the session? or are you calling
update/modify after inserting it?
Also, not related to the problem at all, but we recommend you to use
modify() instead of update() in your rules consequence:
modify( t ) {
setNextSection( section_b ),
setPreviousSection( section_overview )
}
[]s
Edson
2010/1/24 Mike Dougherty mjdoughe...@gmail.com
Hello all,
I've been getting more and more into using Drools Expert, but I certainly
still have a lot to learn. I have almost a complete rules file ready to go.
But I am having an issue with the LHS checking that a collection contains a
certain object value. The rule currently looks like this:
rule Rule Name
no-loop true
when
property : StatusProperty( name == propertyName, value ==
valueA )
t : TrainingStatus( currentSection == section_a, properties
contains property )
then
t.setNextSection( section_b );
t.setPreviousSection( section_overview );
update( t );
end
The TrainingStatus object has the following fields:
public class TrainingStatus implements Serializable {
private String currentSection;
private String nextSection;
private String previousSection;
private SetStatusProperty properties = new TreeSetStatusProperty();
}
And the StatusProperty object has the following:
public class StatusProperty implements Serializable {
private String name;
private String value;
}
I'm inserting a TrainingStatus object that should match this rule. But the
resulting object does not have the nextSection and previousSection fields set
to the values they should.
Can anyone advise on how to get this rule working as expected?
Thanks for your help!
Mike
___
rules-users mailing list
rules-users@lists.jboss.org
https://lists.jboss.org/mailman/listinfo/rules-users
--
Edson Tirelli
JBoss Drools Core Development
JBoss by Red Hat @ www.jboss.com
___
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] Human Task Example
You can manually add users via the OrganziationalEntity table:
User, Administrator
User, myuser
Etc.
I am doing the following to start the task server:
Environment env = KnowledgeBaseFactory.newEnvironment();
taskServerEntityManagerFactory =
Persistence.createEntityManagerFactory(org.drools.task);
env.set(EnvironmentName.ENTITY_MANAGER_FACTORY,
taskServerEntityManagerFactory);
taskService = new TaskService(taskServerEntityManagerFactory,
SystemEventListenerFactory
.getSystemEventListener());
server = new MinaTaskServer(taskService);
Thread thread = new Thread(server);
thread.start();
From: rules-users-boun...@lists.jboss.org
[mailto:rules-users-boun...@lists.jboss.org] On Behalf Of Chuck.KS
Sent: Monday, January 25, 2010 1:26 PM
To: rules-users@lists.jboss.org
Subject: Re: [rules-users] Human Task Example
I did see that I need to populate users, but I didn't at first seen any
instructions on how to do so. Reading more carefully, I think I see how to do
it now, i.e. by calling addUser(). I'll give that a try a little later today.
Another thing that may give me a problem is that I didn't know what the second
argument should be to the TaskService() constructor below. The documentation
shows only one argument, but it seems that there is no one argument constructor
anymore. Any help with that? Really appreciate your help and time! -Chuck
private static void startTaskService()
{
EntityManagerFactory emf =
Persistence.createEntityManagerFactory(org.drools.task);
TaskService taskService = new TaskService(emf,null);
MinaTaskServer server = new MinaTaskServer( taskService );
Thread thread = new Thread( server );
thread.start();
}
On Mon, Jan 25, 2010 at 1:05 PM, salaboy [via Drools - Java Rules Engine]
[hidden email]
http://n3.nabble.com/user/SendEmail.jtp?type=nodenode=138369i=0 wrote:
I see that problem before. It means that you need to populate some users first.
Insert in the database an administrator user before running the process.
On Mon, Jan 25, 2010 at 3:28 PM, Chuck.KS [hidden email]
http://n3.nabble.com/user/SendEmail.jtp?type=nodenode=138346i=0 wrote:
ramram wrote:
Hi What do u have as a problem running the human task?
did u run the taskservice?
u cant start a humantask flow as long as u dont have a TaskService?
I did manage to put some code together but I didn't feel from reading
the
documentation that I knew exactly what I was doing. I think it would be
very
helpful and many questions would be avoided if a worked out example
could
be provided with the drools distribution. Anyway, I really appreciate
your
help. The error I got is indicated below.
Jan 25, 2010 12:16:39 PM org.hibernate.util.JDBCExceptionReporter
logExceptions
WARNING: SQL Error: 23002, SQLState: 23002
Jan 25, 2010 12:16:39 PM org.hibernate.util.JDBCExceptionReporter
logExceptions
SEVERE: Referential integrity constraint violation: FK27A9A59B680AE0:
PUBLIC.TASK FOREIGN KEY(CREATEDBY_ID) REFERENCES
PUBLIC.ORGANIZATIONALENTITY(ID) [23002-77]
Jan 25, 2010 12:16:39 PM org.hibernate.util.JDBCExceptionReporter
logExceptions
WARNING: SQL Error: 23002, SQLState: 23002
Jan 25, 2010 12:16:39 PM org.hibernate.util.JDBCExceptionReporter
logExceptions
SEVERE: Referential integrity constraint violation: FK27A9A59B680AE0:
PUBLIC.TASK FOREIGN KEY(CREATEDBY_ID) REFERENCES
PUBLIC.ORGANIZATIONALENTITY(ID) [23002-77]
Jan 25, 2010 12:16:39 PM
org.hibernate.event.def.AbstractFlushingEventListener performExecutions
SEVERE: Could not synchronize database state with session
org.hibernate.exception.ConstraintViolationException: Could not execute
JDBC
batch update
    at
org.hibernate.exception.SQLStateConverter.convert(SQLStateConverter.java:94)
    at
org.hibernate.exception.JDBCExceptionHelper.convert(JDBCExceptionHelper.java:66)
    at
org.hibernate.jdbc.AbstractBatcher.executeBatch(AbstractBatcher.java:275)
    at
org.hibernate.engine.ActionQueue.executeActions(ActionQueue.java:266)
Also, I'm attaching my test file and persistence.xml file:
http://n3.nabble.com/file/n138317/RuleFlowTest.java RuleFlowTest.java ,
http://n3.nabble.com/file/n138317/persistence.xml persistence.xml
--
View this message in context:
http://n3.nabble.com/Human-Task-Example-tp131011p138317.html
Sent from the Drools - User mailing list archive at Nabble.com.
[rules-users] how to scan subdirectories for resources change-set.xml
change-set xmlns='http://drools.org/drools-5.0/change-set' xmlns:xs='http://www.w3.org/2001/XMLSchema-instance' xs:schemaLocation='http://drools.org/drools-5.0/change-set.xsd' add resource source='file:rules/' type='DRL' / /add /change-set Currently, drools only scans files under rules/ but none of the sub directories under rules/ Is there a way to enable/override this in the current implementation? -- View this message in context: http://n3.nabble.com/how-to-scan-subdirectories-for-resources-change-set-xml-tp138444p138444.html Sent from the Drools - User mailing list archive at Nabble.com. ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users
Re: [rules-users] collection contains problem
Hey Edson and Wolfgang, I went to setup an example app and rules file to send you, and it seemed to work correctly. So now I have to figure out the difference between the sample code and application code. Hopefully, I'll be able to find it. Thanks to both of you for your help. Mike On Jan 25, 2010, at 10:22 AM, Edson Tirelli wrote: Mike, Wolfgang has it right. When you write: property : StatusProperty( name == propertyName, value == valueA ) You are telling the engine that the StatusProperty is a fact in the working memory. Reading that, I assumed you were inserting them, because if they are not facts in the working memory, the rule will obviously never match. If you don't want to insert them (although recommended), you need to rewrite the pattern using from to tell the engine where to look for the properties. Example: when t : TrainingStatus( currentSection == section_a ) property : StatusProperty( name == propertyName, value == valueA ) from t.properties then end []s Edson 2010/1/25 Mike Dougherty mjdoughe...@gmail.com Hello Wolfgang, Thank you for the response. However, as I read this documentation this should not be necessary. Even still, if I try it, it does not seem to help. Thanks, Mike On Jan 24, 2010, at 9:17 AM, Wolfgang Laun wrote: On Sun, Jan 24, 2010 at 8:16 AM, Mike Dougherty mjdoughe...@gmail.com wrote: I'm inserting a TrainingStatus object that should match this rule. But the resulting object does not have the nextSection and previousSection fields set to the values they should. Only because you mention the insertion of the TrainingStatus object but not the one(s) of (a) StatusProperty object(s): They should be inserted, too! -W ___ 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 -- Edson Tirelli JBoss Drools Core Development JBoss by Red Hat @ www.jboss.com ___ 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] Rule Templates with empty cells
Hi!
If I write rules in a decision table I can leave cells empty if I don't need
to use all of the conditions in a row.
How can I do this with the ExternalSpreadsheetCompiler?
I would need something like:
rule ru...@{row.rownumber}
when
$s : MyType1()
@ifDefined{field1} $e : MyType2(val1 == @{field1}) from $s.SUB;
@ifDefined{field2} $e : MyType2(val2 == @{field2}) from $s.SUB;
then
retract($s);
end
Thanks
Juergen
--
View this message in context:
http://n3.nabble.com/Rule-Templates-with-empty-cells-tp138571p138571.html
Sent from the Drools - User mailing list archive at Nabble.com.
___
rules-users mailing list
rules-users@lists.jboss.org
https://lists.jboss.org/mailman/listinfo/rules-users
