Guided Editor in BRMS / Guvnor Version 5 (Snapshot of 26 June)
by Paul Browne
Folks,
For various reasons I'm trying out the Guided Editor for Business Rules in
the Guvnor Version 5 (Snapshot of 26 June from Hudson, deployed on JBoss App
Server 4.2.2GA).
I've created the Package / Category and uploaded a simple fact model (as
works in BRMS version 4). I create a new business rule using the guided
editor and the screen shows successfully with both 'When' and 'Then'
parts.Assume the next question is due to me missing something, but wanted to
double check:
When I press the green '+' to the right of the screen I am shown the message
/ dialog layer saying '
*Add a condition to the rule... *or* Add an action to the rule.
*Problem is that there doesn't appear to be a way of adding a condition or
action. The only thing I'm seeing in the logs is
* (Contexts.java:flushAndDestroyContexts:335) could not discover
transaction status
*Am I missing something or should I come back to Guvnor later in the
development Cycle?
Thanks
Paul
13 years, 3 months
Can drools continue testing even if one of the conditions fail ?
by DroolUser
Hi,
I'm using drools for testing if the few attributes of my MO are not null.
I construct the rule in the .drl file in following way :
rule "name"
when
condition1
condition2
condition3
condition4
then
consequence
end
I have observed that the drool engine verifies the conditions line by line
(in the sequence they have written). The moment condition fails, control
comes back to the calling method.
I don't want this. I want the control to execute each and every condition
whether true or false and maintain a record of passed/failed conditions.
Something like this :
rule "name"
when
condition1
log the test result --- This statement should get executed
even if condition 1 fails and control should go to condition 2
condition2
log the test result
condition3
log the test result
condition4
log the test result
then
consequence
end
Is this possible in Drools ?
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16 years, 1 month
Fwd: Special Journal Issue IEEE TKDE: Call for Contributions
by paschke＠mi.fu-berlin.de
Dear Colleagues,
Please consider to participate in RuleML-2008
(http://2008.ruleml.org/) which will be in about 3 weeks in Orlando,
Florida, collocated with the world largest Business Rules Forum.
We have a very interesting program with renowned speakers, a
prestigious rules Challenge, a special session + panel about Rule
standards, etc.
We are also editing a special issue of IEEE TKDE. Please consider to
contribute to this issue and forward the open call for contributions
(below) to your interested colleagues.
Thanks,
Adrian
[ our apologies should you receive this message more than one time ]
===========================================================================
CALL FOR Contributions
Rule Representation, Interchange and Reasoning in Distributed,
Heterogeneous Environments
Special Issue of IEEE Transactions on Knowledge and Data Engineering
Guest Editors: N. Bassiliades, G. Governatori, A. Paschke, J.
Dix
===========================================================================
In recent years rule based technologies have enjoyed remarkable
adoption in two areas: (1) Business Rule Processing and (2)
Web-Centered Reasoning. The first trend is caused by the software
development life cycle, which needs to be accelerated at reduced cost.
The second trend is related to the Semantic Web and Service-oriented
technologies, which aim to turn the Web into a huge repository of
cross-referenced, machine-understandable data and processes. For both
trends, rules can be used to extract, derive, transform, and integrate
information in a platform-independent manner.
While early rule engines and environments were complex, expensive to
maintain, and not very user friendly, the current generation of rule
technology provides enhanced usability, scalability and performance,
and is less costly. A general advantage of using rules is that they
are usually represented in a platform independent manner, often using
XML. This fits well into today's distributed, heterogeneous Web-based
system environments.
Rules represented in standardized Web formats can be discovered,
interchanged and invoked at runtime within and across Web systems, and
can be interpreted and executed on any platform.
This special issue solicits state-of-the-art approaches, solutions and
applications in the area of Rule Representation, Reasoning and
Interchange in the context of distributed, (partially) open,
heterogeneous environments, such as the Semantic Web, Intelligent
Multi-Agent Systems, Event-Driven Architectures and Service-Oriented
Computing. We strongly advise that solicited contributions should
clearly identify the target class of applications they enable.
=======
Topics
=======
Original contributions, not currently under review or accepted by
another journal, are solicited in relevant areas including (but not
limited to) the
following:
- Rule Representation and Languages
* Rule languages for exchanging and processing information through the
web
* Representation and meta-annotation of rules and rule sets for
publication and interchange
* Event-driven/action rule languages and models
* Rule-based event processing languages and rule-based complex event
processing
* Modeling of executable rule specifications and tool support
* Natural-language processing of rules
* Graphical processing, modeling and rendering of rules
* Rules in web 2.0, web 3.0, semantic web technologies and web
intelligence research
- Reasoning and Rule Engines
* Execution models, rule engines, and environments
* Rule-based (multi-valued) reasoning with and representing uncertain
and fuzzy information
* Rule-based reasoning with non-monotonic negation, modalities, deontic,
temporal, priority, scoped or other rule qualifications
* Rule-based default reasoning with default logic, defeasible logic, and
answer set programming
* Compilation vs. interpretation approaches of rules
* Hybrid rule systems
- Rule Interchange and Integration
* Interchange and refactoring of rule bases in heterogeneous execution
environments
* Rule-based agility and its role in middleware
* Communication between rule based systems using interchange formats and
processing / communication middleware
* Information integration of external data and domain knowledge into rules
* Homogeneous and heterogeneous integration of rules and ontologies
* Extraction and reengineering of platform-independent, interchangeable
rules and rule models from existing platform-specific resources
* Rule interchange standards and related industry interchange formats
* Incorporation of rule technology into distributed enterprise
application architectures
* Interoperation between different rule formats and ontological domain
conceptualization
* Translation of interchangeable and domain-independent rule formats and
rule models into executable technical rule specifications
- Rule Engineering and Repositories
* Verification and validation of interchanged rule bases in
heterogeneous execution environments
* Practical solutions tackling the real-world software engineering
requirements of rule-based systems in open, distributed environments
* Collaborative authoring, modeling and engineering of rule
specifications and rule repositories
* Management and maintenance of distributed rule bases and rule
repositories during their lifecycle
- Web Rule Applications
* Applications and integration of rules in web standards
* Applications of rules in the semantic web and pragmatic web
* Applications based on (semantic) web rule standardization or
standards-proposing efforts
* Applications of rules in e.g. legal reasoning, compliance rules,
security, government, security, risk management, trust and proof
reasoning, etc.
* E-contracting and automated negotiations with rule-based declarative
strategies
* Specification, execution and management of rule-based policies and
electronic contracts
* Rule-based software agents and (web) services
* Theoretical and/or empirical evaluation of rule-based system
performance and scalability
=======================
Submission Guidelines
=======================
Prospective authors should prepare manuscripts according to the Information
for Authors as published in recent issues of the journal or at
http://www.computer.org/tkde/. Note that mandatory over-length page charges
and color charges will apply.
Manuscripts should be submitted through the online IEEE manuscript
submission system at https://mc.manuscriptcentral.com/cs-ieee.
Updated information of this call can be found at
http://lpis.csd.auth.gr/publications/tkde-si/.
=======================
Schedule
=======================
Deadline for paper submission: March 1, 2009
Completion of first review: June 19, 2009
Minor/Major revision due: August 21, 2009
Final decision notification: November 6, 2009
Publication materials due: December 4, 2009
Publication date (tentative): July 2010
=======================
Guest Editors
=======================
Nick Bassiliades, Aristotle University of Thessaloniki, Greece
nbassili AT csd.auth.gr
Guido Governatori, NICTA, Australia
guido.governatori AT nicta.com.au
Adrian Paschke, Free University Berlin, Corporate Semantic Web, Germany
paschke AT inf.fu-berlin.de
Jurgen Dix, Clausthal University of Technology, Germany
dix AT tu-clausthal.de
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16 years, 3 months
Extended Deadline - Semantic Web Applications and Tools for Life Sciences (SWAT4LS)
by paschke＠mi.fu-berlin.de
Dear Colleagues,
Because of a large number of requests, the submission date for the
International Workshop on Semantic Web Applications and Tools for Life
Sciences (SWAT4LS) has been extended to October 13th.
We hope that you will consider submitting a paper - see submission
details below.
Note: A selection of papers will be published in a special issue of
BMC Bioinformatics supplement devoted to the workshop.
Best regards,
Adrian Paschke (on behalf of all Chairs)
-----------------------------------------------------
Prof. Dr. Adrian Paschke (paschke(a)inf.fu-berlin.de)
AG-CSW (AG Corporate Semantic Web)
Free University Berlin
Germany
International Workshop on
Semantic Web Applications and Tools for Life Sciences (SWAT4LS)
28th November 2008, Edinburgh, UK
http://www.swat4ls.org/
Call for Papers
New submission deadline: 13 October 2008!
A selection of papers will be published in a BMC Bioinformatics
supplement devoted to the workshop
Overview
--------
The workshop is organized in sessions and open discussions. Invited
speakers will present state-of-theart,
provocative lectures on the workshop's main topic, while a number of
submissions will be accepted as
oral presentations and posters on all workshop's topics.
Workshop Description
--------------------
Semantic Web technologies, tools and applications are starting to
emerge in Life Sciences. In recent
years, systems have been introduced and an increasing interest among
researchers is arising. This
workshop will provide a venue to present and discuss benefits and
limits of the adoption of these
technologies and tools in biomedical informatics and computational biology.
It will showcase experiences, information resources, tools development
and applications. It will bring
together researchers, both developers and users, from the various
fields of Biology, Bioinformatics and
Computer Science, to discuss goals, current limits and some real use
cases for Semantic Web
technologies in Life Sciences.
Keynote Speakers
------------------------
+ Semantic web technology in translational cancer research,
Michael Krauthammer, Department of Pathology, Yale University School
of Medicine, USA
+ Using Ontologies to bring Web Services on to the Semantic Web
Mark Wilkinson, Dept. of Medical Genetics, University of British
Columbia, Canada
Workshop Venue and Format
------------------------
The workshop will take place in Edinburgh, Scotland, on 28 November
2008, and is hosted by the e-
Science Institute of the UK's National e-Science Centre (NeSC).
SWAT4LS will be a one-day workshop and will consist of two invited
talks, regular paper and poster
presentations. The workshop will conclude with a panel discussion on
the strength and weaknesses of
the Semantic Web for the Life Sciences.
Deadlines
---------
* Submission deadline (both papers and posters): 13 October 2008 (New
deadline!)
* Notification of acceptance: 20 October 2008
* Camera-ready submission: 3 November 2008
Topics of Interest
------------------
Topics of interest include, but are not limited to:
* Standards, Technologies, Tools for the Semantic Web
o Semantic Web standards (RDF, OWL, ...)
o RDF/OWL, SKOS, .... and their applicability to bioinformatics
o RDF Schemas and Query systems
o Biomedical Ontologies and related tools
o Formal approaches to large biomedical controlled terminologies
and vocabularies
* Systems for a Semantic Web for Bioinformatics
o Bio-ontologies, RDF stores, Semantic Web Services
o RDF repositories and query systems for life sciences
o Semantically aware biomedical Web Services
o Semantic Biological Data Integration Systems
* Existing and perspective applications of the Semantic Web for Bioinformatics
o Semantic browsers, Semantic collaborative research
o Case studies, use cases, and scenarios
o Semantic Web applications in life sciences
Type of contributions and instructions
----------------------
The following possible original contributions are sought:
* Oral communications (regular papers)
* Posters
* Software demos
All contributions must be in English and must be submitted through the
EasyChair review system at:
http://www.easychair.org/conferences/?conf=swat4ls.
Please upload all submissions as PDF files in LNCS format (see
http://www.springer.de/comp/lncs/authors.html ).
To ensure high quality, submitted papers will be carefully
peer-reviewed by at least three members of the
Scientific Committee.
* Submissions for Oral communications should be between 10 and 15 pages.
* Posters submissions should be between 4 and 8 pages.
* Software demo proposals should also be between 4 and 8 pages.
All accepted oral communications and posters will be published with
the CEUR-WS.org Workshop
Proceedings service (see http://ceur-ws.org/).
Furthermore, a selection of papers will be published in a special
issue of the BMC Bioinformatics journal
devoted to the SWAT4LS workshop.
To this end, a special Call will be launched shortly after the
workshop, for extended and revised versions
of contributions submitted to the workshop and accepted either as oral
communication or poster.
For any information, refer to info(a)swat4ls.org.
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16 years, 3 months
Guvnor problem
by Diablo_UK
Hi guys,
I'm very new to Guvnor and Drools and all these exciting tools.
I'm working my way through the example that I found here:
http://www.jboss.org/feeds/post/jboss_drools_how_to_tuning_guvnor_part_1
and everything was just fine and dandy until I had to run the java code!
Unfortunately, I get the following output:
RuleAgent(default) INFO (Tue Feb 24 17:20:57 GMT 2009): Configuring with
newInstance=false, secondsToRefresh=-1
RuleAgent(default) INFO (Tue Feb 24 17:20:57 GMT 2009): Configuring package
provider : URLScanner monitoring URLs:
http://localhost:8080/drools-guvnor/org.drools.guvnor.Guvnor/package/myNe...
RuleAgent(default) EXCEPTION (Tue Feb 24 17:20:58 GMT 2009): null. Stack
trace should follow.
java.io.OptionalDataException
at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1340)
at java.io.ObjectInputStream.readObject(ObjectInputStream.java:351)
at org.drools.agent.HttpClientImpl.fetchPackage(HttpClientImpl.java:59)
at org.drools.agent.URLScanner.readPackage(URLScanner.java:138)
at org.drools.agent.URLScanner.getChangeSet(URLScanner.java:110)
at org.drools.agent.URLScanner.loadPackageChanges(URLScanner.java:88)
at org.drools.agent.RuleAgent.checkForChanges(RuleAgent.java:330)
at org.drools.agent.RuleAgent.refreshRuleBase(RuleAgent.java:298)
at org.drools.agent.RuleAgent.configure(RuleAgent.java:284)
at org.drools.agent.RuleAgent.init(RuleAgent.java:208)
at org.drools.agent.RuleAgent.newRuleAgent(RuleAgent.java:176)
at org.drools.agent.RuleAgent.newRuleAgent(RuleAgent.java:148)
at org.drools.agent.RuleAgent.newRuleAgent(RuleAgent.java:216)
at com.ioko.GuvnorTest.main(GuvnorTest.java:27)
com.ioko.Driver
But I have no idea why!!!!
Can any of you guys please please please help a newbie?
Many thanks,
Adrian M Bell
--
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16 years, 3 months
Drools WM persistence
by Nestor Tarin Burriel
Hi all,
I'm testing drools and I wonder to persist the working memory.
How does drools do it? There is a possibitity of persisting it into a DDBB?
Thanks,
NEStor
16 years, 3 months
RE: [rules-dev] Dealing with null pointer exceptions thrown by parsing rules
by Zevenbergen, Alex
Thanks for replying.
rule "Player 1 wins first set "
when
$f : Fact()
eval ($f.getDetails().get("END_SET").toString() == "true" &&
Integer.valueOf($f.getDetails().get("SET").toString()) == 1 &&
Integer.valueOf($f.getDetails().get("PLAYER1_SCORE").toString()) >
Integer.valueOf($f.getDetails().get("PLAYER2_SCORE").toString()))
then
//then settle selection;
end
this rules runs perfectly as long as the hashmap contained in the 'fact'
object has all the required keys and their values are not null. For the
time being I have just changed any null values to a value of 'DEFAULT'
but it would be preferable to be able to look for
f.getDetails().get("END_SET") (for example) knowing that the engine that
sent it might not be in an end_set state so may not have added that key.
That example is very basic but as I create more rules for more sports it
could become very cumbersome to have to ensure that every key referenced
in the rules is in the hashmap each time!
Alex
________________________________
From: rules-dev-bounces(a)lists.jboss.org
[mailto:rules-dev-bounces@lists.jboss.org] On Behalf Of David Sinclair
Sent: 24 February 2009 17:27
To: Rules Dev List
Subject: Re: [rules-dev] Dealing with null pointer exceptions thrown by
parsing rules
I understand what you are saying Alex, but could you post an example
rule to see exactly how you are doing it? It may be that you could
simply rewrite the rule so you don't get the NPE.
On Tue, Feb 24, 2009 at 4:24 AM, Zevenbergen, Alex
<azevenbergen(a)paddypower.com> wrote:
Hi all,
I have started writing my rules packages and so have had a decent amount
of success. However all my rules are based on value pairs from a hashmap
object that is contained within my fact object. This approach works fine
if the parameter the rule is looking for is in the map and has a value.
But I will need to be able to pass null values to the rules (and expect
them to just not fire any rule that looks for that param), however this
always throws a null pointer exception.
So my question is: Is there any mechanism to deal with this in drools.
Simply setting all nulls to a default value isn't preferable in this
situation as the app is going to be used by several different sources
and has to be able to take in many different types of info.
Thanking you,
Alex
________________________________________________________________________
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in this communication. This e-mail and any files transmitted with it are
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to whom they are addressed. If you are not the intended addressee, you
may not copy, forward, disclose or otherwise use this e-mail or any part
of it in any way whatsoever. To do so is prohibited and may be unlawful.
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Registered in Ireland: 16956
________________________________________________________________________
_______________________________________________
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rules-dev(a)lists.jboss.org
https://lists.jboss.org/mailman/listinfo/rules-dev
________________________________________________________________________
Privileged, confidential and/or copyright information may be contained in this communication. This e-mail and any files transmitted with it are confidential and intended solely for the use of the individual or entity to whom they are addressed. If you are not the intended addressee, you may not copy, forward, disclose or otherwise use this e-mail or any part of it in any way whatsoever. To do so is prohibited and may be unlawful. If you have received this email in error
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________________________________________________________________________
16 years, 3 months
Dealing with null pointer exceptions thrown by parsing rules
by Zevenbergen, Alex
Hi all,
I have started writing my rules packages and so have had a decent amount
of success. However all my rules are based on value pairs from a hashmap
object that is contained within my fact object. This approach works fine
if the parameter the rule is looking for is in the map and has a value.
But I will need to be able to pass null values to the rules (and expect
them to just not fire any rule that looks for that param), however this
always throws a null pointer exception.
So my question is: Is there any mechanism to deal with this in drools.
Simply setting all nulls to a default value isn't preferable in this
situation as the app is going to be used by several different sources
and has to be able to take in many different types of info.
Thanking you,
Alex
________________________________________________________________________
Privileged, confidential and/or copyright information may be contained in this communication. This e-mail and any files transmitted with it are confidential and intended solely for the use of the individual or entity to whom they are addressed. If you are not the intended addressee, you may not copy, forward, disclose or otherwise use this e-mail or any part of it in any way whatsoever. To do so is prohibited and may be unlawful. If you have received this email in error
please notify the sender immediately.
Paddy Power PLC may monitor the content of e-mail sent and received for the purpose of ensuring compliance with its policies and procedures.
Paddy Power plc, Airton House, Airton Road, Tallaght, Dublin 24 Registered in Ireland: 16956
________________________________________________________________________
16 years, 3 months
How to get Fact's type from rule package?
by nopea joki
Hi,
I would like to get all the classes used for Facts in the rules from Package
like getting global variable information from package.
Is it possible to have such information?
Regards,
nj
16 years, 4 months
