9:12 a.m.
Hi,
I use drools in stateless Session like this :
session.execute( my_facts_list) ;
and i have many rules like this
when
Type1(filter1 =1)
Then
Insert( new Fact()) ;
Could you explain how it's possible to retrieve my new facts in java code ?
Thanks.
Gaetan
9:30 a.m.
Without knowing your use cases, or what you intended to do with the
facts once you retrieve them, I'd suggest that you could simply add them
to a global list and examine the list contents after rule processing.
For example:
import java.util.List;
global List results;
rule "IWantToTrackMyConsequenceFacts"
when
Type1(filter1 =1)
then
Fact someFact = new Fact();
insert(someFact);
results.add(someFact);
end
Prior to executing the rule(s) you will have to set that global variable
to a valid list object with something like this:
knowledgeSession.setGlobal("results", new ArrayList());
From: rules-users-bounces(a)lists.jboss.org
[mailto:rules-users-bounces@lists.jboss.org] On Behalf Of Ruault Gaetan
Sent: Tuesday, July 05, 2011 5:13 PM
To: Rules Users List
Subject: [rules-users] get inserted facts
Hi,
I use drools in stateless Session like this :
session.execute( my_facts_list) ;
and i have many rules like this
when
Type1(filter1 =1)
Then
Insert( new Fact()) ;
Could you explain how it's possible to retrieve my new facts in java
code ?
Thanks.
Gaetan
4:02 p.m.
Without changing the rules: you might also use a WorkingMemoryEventListener
to collect the inserted new Fact objects.
A StatefulKnowledgeSession provides the method getObjects(), with or without
a filter, so you might consider using that.
-W
2011/7/6 Nathan Bell <Nathan.Bell(a)pharmacyonesource.com>
Without knowing your use cases, or what you intended to do with the
facts
once you retrieve them, I’d suggest that you could simply add them to a
global list and examine the list contents after rule processing. For
example:****
** **
import java.util.List;****
** **
global List results;****
** **
rule "IWantToTrackMyConsequenceFacts"****
when ****
Type1(filter1 =1) ****
then****
Fact someFact = new Fact();****
insert(someFact);****
results.add(someFact);****
end****
** **
** **
Prior to executing the rule(s) you will have to set that global variable to
a valid list object with something like this:****
** **
knowledgeSession.setGlobal(“results”, new ArrayList());****
** **
** **
** **
*From:* rules-users-bounces(a)lists.jboss.org [mailto:
rules-users-bounces(a)lists.jboss.org] *On Behalf Of *Ruault Gaetan
*Sent:* Tuesday, July 05, 2011 5:13 PM
*To:* Rules Users List
*Subject:* [rules-users] get inserted facts****
** **
Hi,****
** **
I use drools in stateless Session like this :****
** **
session.execute( my_facts_list) ;****
** **
and i have many rules like this****
** **
when ****
Type1(filter1 =1) ****
Then****
Insert( new Fact()) ;****
** **
** **
Could you explain how it’s possible to retrieve my new facts in java code ?
****
** **
** **
Thanks.****
** **
Gaetan****
** **
** **
_______________________________________________
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rules-users(a)lists.jboss.org
https://lists.jboss.org/mailman/listinfo/rules-users
4:40 p.m.
Option 1 is to just use a stateful session - from my understanding there is pretty much no
difference in terms of overhead.
The other option is to insert a 'ResultsAccumulator' object containing a
resultList. I
If you don't need to reason over your new Facts than rather than inserting them just
add them to the result list.
Alternatively have a low salience rule which will only run at the end which accumulates up
all the facts and adds them to the result list (either with accumulate or one by one).
Thomas
From: rules-users-bounces(a)lists.jboss.org [mailto:rules-users-bounces@lists.jboss.org] On
Behalf Of Ruault Gaetan
Sent: 06 July 2011 01:13
To: Rules Users List
Subject: [rules-users] get inserted facts
Hi,
I use drools in stateless Session like this :
session.execute( my_facts_list) ;
and i have many rules like this
when
Type1(filter1 =1)
Then
Insert( new Fact()) ;
Could you explain how it's possible to retrieve my new facts in java code ?
Thanks.
Gaetan
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10:43 p.m.
Hi,
Finaly in my cases i stay in stateless session
And i've added a result list.and get this list in out.
Thanks
Gaetan
De : rules-users-bounces(a)lists.jboss.org [mailto:rules-users-bounces@lists.jboss.org] De
la part de Swindells, Thomas
Envoyé : mercredi 6 juillet 2011 09:41
À : Rules Users List
Objet : Re: [rules-users] get inserted facts
Option 1 is to just use a stateful session - from my understanding there is pretty much no
difference in terms of overhead.
The other option is to insert a 'ResultsAccumulator' object containing a
resultList. I
If you don't need to reason over your new Facts than rather than inserting them just
add them to the result list.
Alternatively have a low salience rule which will only run at the end which accumulates up
all the facts and adds them to the result list (either with accumulate or one by one).
Thomas
From: rules-users-bounces(a)lists.jboss.org [mailto:rules-users-bounces@lists.jboss.org] On
Behalf Of Ruault Gaetan
Sent: 06 July 2011 01:13
To: Rules Users List
Subject: [rules-users] get inserted facts
Hi,
I use drools in stateless Session like this :
session.execute( my_facts_list) ;
and i have many rules like this
when
Type1(filter1 =1)
Then
Insert( new Fact()) ;
Could you explain how it's possible to retrieve my new facts in java code ?
Thanks.
Gaetan
________________________________
**************************************************************************************
This message is confidential and intended only for the addressee. If you have received
this message in error, please immediately notify the
postmaster@nds.com<mailto:postmaster@nds.com> and delete it from your system as well
as any copies. The content of e-mails as well as traffic data may be monitored by NDS for
employment and security purposes. To protect the environment please do not print this
e-mail unless necessary.
NDS Limited. Registered Office: One London Road, Staines, Middlesex, TW18 4EX, United
Kingdom. A company registered in England and Wales. Registered no. 3080780. VAT no. GB 603
8808 40-00
**************************************************************************************
4689
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4689
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4 comments
4 participants
participants (4)
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Nathan Bell -
Ruault Gaetan -
Swindells, Thomas -
Wolfgang Laun