Re: [rules-users] How to design a rule using collect for filtering? Thanks.
Thanks for your help, Edson.
collect works in my simple test now, but not when I integrate with my code.
Is there an easy way to debug LHS to see if collect stmt is evaluated? I
notice IllegalAccessError
since my app will load a selected list of jars upfront, so my questions are:
1) Can this error break collect?
2) How can I fix this error still using our own classLoader?
Here is the stack trace:
2007 Aug 15, 09:08:13:193Exception IllegalAccessError
java.lang.IllegalAccessError: class
org.drools.reteoo.InitialFactImplShadowProxy cannot access its superclass
org.drools.reteoo.Init
ialFactImpl
at java.lang.ClassLoader.defineClass1(Native Method)
at java.lang.ClassLoader.defineClass(Unknown Source)
at
org.drools.rule.MapBackedClassLoader.fastFindClass(MapBackedClassLoader.java:60)
at
org.drools.rule.MapBackedClassLoader.loadClass(MapBackedClassLoader.java:79)
at java.lang.ClassLoader.loadClass(Unknown Source)
at
org.drools.reteoo.Rete$ObjectTypeConf.loadOrGenerateProxy(Rete.java:379)
at
org.drools.reteoo.Rete$ObjectTypeConf.defineShadowProxyData(Rete.java:344)
at org.drools.reteoo.Rete$ObjectTypeConf.init(Rete.java:320)
at org.drools.reteoo.Rete.assertObject(Rete.java:145)
at
org.drools.reteoo.ReteooRuleBase.assertObject(ReteooRuleBase.java:190)
at
org.drools.reteoo.ReteooWorkingMemory$WorkingMemoryReteAssertAction.execute(ReteooWorkingMemory.java:163)
at
org.drools.common.AbstractWorkingMemory.executeQueuedActions(AbstractWorkingMemory.java:1241)
at
org.drools.common.AbstractWorkingMemory.insert(AbstractWorkingMemory.java:858)
at
org.drools.common.AbstractWorkingMemory.insert(AbstractWorkingMemory.java:822)
at
org.drools.common.AbstractWorkingMemory.insert(AbstractWorkingMemory.java:623)
Thanks,
-av
Edson Tirelli [EMAIL PROTECTED] wrote:
No single simple answer here. You need to check what would better fit your
use case.
The thing is: it is not possible to limit the number of matches to a collect
statement... all matching instances WILL match it and be collected.
No really clean way I can think about, but a few possible options (haven't
executed them, but shall work):
1. Simply execute the actions multiple times in the consequence:
when
eventList : LinkedList( $size : size = 5 ) from collect( Event(text
matches .*rule5.* ))
then
for( int i = 0; i $size/5; i++ )
System.out.println(rule5 is fired + eventList.size ());
end
2. Flag used facts:
when
eventList : LinkedList( size = 5 ) from collect( Event(text matches
.*rule5.*, processed == false ))
then
System.out.println(rule5 is fired + eventList.size());
for( int i = 0; i 5; i++ ) {
Event e = (Event) eventList.get ( i );
e.setProcessed( true );
update( e );
}
end
2. Retract used facts:
when
eventList : LinkedList( size = 5 ) from collect( Event(text matches
.*rule5.* ))
then
System.out.println(rule5 is fired + eventList.size());
for( int i = 0; i 5; i++ ) {
Event e = (Event) eventList.get( i );
retract( e );
}
end
Hope it helps.
Edson
2007/8/10, Anh Vuong [EMAIL PROTECTED]:Hi,
I'd like to use keyword collect to do my filtering but its behaviour confused
me, please advise. I greatly appreciate your help.
Problem 1:
when
eventList : LinkedList(size == 5)
from collect( Event(text matches
.*rule5.* ))
then System.out.println(
rule5 is fired + eventList.size());
I still do not see any log msg after adding 5+ events. Is something wrong
with my rule?
Problem 2:
when
event: Event(text matches .*rule5.* ))
eventList : LinkedList(size == 5)
from collect( Event(text == event.text)
then System.out.println(
rule5 is fired + eventList.size());
After adding 5 events, I see 5 log msg instead of one as I'd expect.
If I add more events, I will see more log. How do I tell LHS to reset the
count from 0.
Basically, I want to take 1 event out of 5 similar events (suppressing
filtering). So if there are 10 similar events, my RHS should activate 2 times,
not 10 times.
Thanks,
-av
-
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--
Edson Tirelli
Software Engineer - JBoss Rules Core Developer
Office: +55 11 3529-6000
Mobile: +55 11 9287-5646
JBoss, a division of Red Hat @ www.jboss.com
___
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-
Park yourself in front of a world of choices in
Re: [rules-users] How to design a rule using collect for filtering? Thanks.
This is a regression bug. InitialFact should not be shadowed. Can you
please open a JIRA for that?
Thank you
Edson
2007/8/15, Anh Vuong [EMAIL PROTECTED]:
Thanks for your help, Edson.
collect works in my simple test now, but not when I integrate with my
code. Is there an easy way to debug LHS to see if collect stmt is
evaluated? I notice IllegalAccessError
since my app will load a selected list of jars upfront, so my questions
are:
1) Can this error break collect?
2) How can I fix this error still using our own classLoader?
Here is the stack trace:
2007 Aug 15, 09:08:13:193Exception IllegalAccessError
java.lang.IllegalAccessError: class
org.drools.reteoo.InitialFactImplShadowProxy cannot access its superclass
org.drools.reteoo.Init
ialFactImpl
at java.lang.ClassLoader.defineClass1(Native Method)
at java.lang.ClassLoader.defineClass(Unknown Source)
at org.drools.rule.MapBackedClassLoader.fastFindClass(
MapBackedClassLoader.java:60)
at org.drools.rule.MapBackedClassLoader.loadClass(
MapBackedClassLoader.java:79)
at java.lang.ClassLoader.loadClass(Unknown Source)
at org.drools.reteoo.Rete$ObjectTypeConf.loadOrGenerateProxy(
Rete.java:379)
at org.drools.reteoo.Rete$ObjectTypeConf.defineShadowProxyData(
Rete.java:344)
at org.drools.reteoo.Rete$ObjectTypeConf.init(Rete.java:320)
at org.drools.reteoo.Rete.assertObject(Rete.java:145)
at org.drools.reteoo.ReteooRuleBase.assertObject(
ReteooRuleBase.java:190)
at
org.drools.reteoo.ReteooWorkingMemory$WorkingMemoryReteAssertAction.execute
(ReteooWorkingMemory.java:163)
at org.drools.common.AbstractWorkingMemory.executeQueuedActions(
AbstractWorkingMemory.java:1241)
at org.drools.common.AbstractWorkingMemory.insert(
AbstractWorkingMemory.java:858)
at org.drools.common.AbstractWorkingMemory.insert(
AbstractWorkingMemory.java:822)
at org.drools.common.AbstractWorkingMemory.insert(
AbstractWorkingMemory.java:623)
Thanks,
-av
*Edson Tirelli [EMAIL PROTECTED]* wrote:
No single simple answer here. You need to check what would better fit
your use case.
The thing is: it is not possible to limit the number of matches to a
collect statement... all matching instances WILL match it and be collected.
No really clean way I can think about, but a few possible options
(haven't executed them, but shall work):
1. Simply execute the actions multiple times in the consequence:
when
eventList : LinkedList( $size : size = 5 ) from collect( Event(text
matches .*rule5.* ))
*then
for( int i = 0; i $size/5; i++ )
*
System.out.println(rule5 is fired + eventList.size ());
end
2. Flag used facts:
when
eventList : LinkedList( size = 5 ) from collect( Event(text matches
.*rule5.*, processed == false ))
*then
* System.out.println(rule5 is fired + eventList.size());
* for( int i = 0; i 5; i++ ) {
Event e = **(Event) eventList.get ( i );**
e.setProcessed( true );
update( e );
*
}
end
2. Retract used facts:
when
eventList : LinkedList( size = 5 ) from collect( Event(text matches
.*rule5.* ))
*then
* System.out.println(rule5 is fired + eventList.size());
* for( int i = 0; i 5; i++ ) {
Event e = **(Event) eventList.get( i );* *
retract( e );
*
}
end
Hope it helps.
Edson
2007/8/10, Anh Vuong [EMAIL PROTECTED]:
Hi,
I'd like to use keyword collect to do my filtering but its behaviour
confused me, please advise. I greatly appreciate your help.
Problem 1:
when
eventList : LinkedList(size == 5)
from collect( Event(text matches
.*rule5.* ))
*then* System.out.println(
rule5 is fired + eventList.size());
I still do not see any log msg after adding 5+ events. Is something
wrong with my rule?
Problem 2:
when
event: Event(text matches .*rule5.* ))
eventList : LinkedList(size == 5)
from collect( Event(text == event.text)
*then * System.out.println(
rule5 is fired + eventList.size());
After adding 5 events, I see 5 log msg instead of one as I'd expect.
If I add more events, I will see more log. How do I tell LHS to reset
the count from 0.
Basically, I want to take 1 event out of 5 similar events (suppressing
filtering). So if there are 10 similar events, my RHS should activate 2
times, not 10 times.
Thanks,
-av
--
Ready for the edge of your seat? Check out tonight's top
pickshttp://us.rd.yahoo.com/evt=48220/*http://tv.yahoo.com/on Yahoo! TV.
___
rules-users mailing list
rules-users@lists.jboss.org
https://lists.jboss.org/mailman/listinfo/rules-users
--
Edson Tirelli
Software Engineer - JBoss Rules Core Developer
Office: +55 11 3529-6000
Mobile: +55 11 9287-5646
JBoss, a division of Red Hat @
Re: [rules-users] How to design a rule using collect for filtering? Thanks.
http://jira.jboss.com/jira/browse/JBRULES-1086 is created.
Edson Tirelli [EMAIL PROTECTED] wrote:
This is a regression bug. InitialFact should not be shadowed. Can you
please open a JIRA for that?
Thank you
Edson
2007/8/15, Anh Vuong [EMAIL PROTECTED]:Thanks for your help, Edson.
collect works in my simple test now, but not when I integrate with my code.
Is there an easy way to debug LHS to see if collect stmt is evaluated? I
notice IllegalAccessError
since my app will load a selected list of jars upfront, so my questions are:
1) Can this error break collect?
2) How can I fix this error still using our own classLoader?
Here is the stack trace:
2007 Aug 15, 09:08:13:193Exception IllegalAccessError
java.lang.IllegalAccessError: class
org.drools.reteoo.InitialFactImplShadowProxy cannot access its superclass
org.drools.reteoo.Init
ialFactImpl
at java.lang.ClassLoader.defineClass1(Native Method)
at java.lang.ClassLoader.defineClass(Unknown Source)
at
org.drools.rule.MapBackedClassLoader.fastFindClass(MapBackedClassLoader.java:60)
at
org.drools.rule.MapBackedClassLoader.loadClass(MapBackedClassLoader.java:79)
at java.lang.ClassLoader.loadClass (Unknown Source)
at
org.drools.reteoo.Rete$ObjectTypeConf.loadOrGenerateProxy(Rete.java:379)
at
org.drools.reteoo.Rete$ObjectTypeConf.defineShadowProxyData(Rete.java:344)
at org.drools.reteoo.Rete$ObjectTypeConf .init(Rete.java:320)
at org.drools.reteoo.Rete.assertObject(Rete.java:145)
at
org.drools.reteoo.ReteooRuleBase.assertObject(ReteooRuleBase.java:190)
at
org.drools.reteoo.ReteooWorkingMemory$WorkingMemoryReteAssertAction.execute(ReteooWorkingMemory.java:163)
at
org.drools.common.AbstractWorkingMemory.executeQueuedActions(AbstractWorkingMemory.java:1241)
at
org.drools.common.AbstractWorkingMemory.insert(AbstractWorkingMemory.java:858)
at
org.drools.common.AbstractWorkingMemory.insert(AbstractWorkingMemory.java:822)
at org.drools.common.AbstractWorkingMemory.insert
(AbstractWorkingMemory.java:623)
Thanks,
-av
Edson Tirelli [EMAIL PROTECTED] wrote:
No single simple answer here. You need to check what would better fit your
use case.
The thing is: it is not possible to limit the number of matches to a collect
statement... all matching instances WILL match it and be collected.
No really clean way I can think about, but a few possible options (haven't
executed them, but shall work):
1. Simply execute the actions multiple times in the consequence:
when
eventList : LinkedList( $size : size = 5 ) from collect( Event(text
matches .*rule5.* ))
then
for( int i = 0; i $size/5; i++ )
System.out.println( rule5 is fired + eventList.size ());
end
2. Flag used facts:
when
eventList : LinkedList( size = 5 ) from collect( Event(text matches
.*rule5.*, processed == false ))
then
System.out.println(rule5 is fired + eventList.size ());
for( int i = 0; i 5; i++ ) {
Event e = (Event) eventList.get ( i );
e.setProcessed ( true );
update( e );
}
end
2. Retract used facts:
when
eventList : LinkedList( size = 5 ) from collect( Event(text matches
.*rule5.* ))
then
System.out.println(rule5 is fired + eventList.size ());
for( int i = 0; i 5; i++ ) {
Event e = (Event) eventList.get( i );
retract( e );
}
end
Hope it helps.
Edson
2007/8/10, Anh Vuong [EMAIL PROTECTED]: Hi,
I'd like to use keyword collect to do my filtering but its behaviour confused
me, please advise. I greatly appreciate your help.
Problem 1:
when
eventList : LinkedList(size == 5)
from collect( Event(text matches
.*rule5.* ))
then System.out.println(
rule5 is fired + eventList.size());
I still do not see any log msg after adding 5+ events. Is something wrong
with my rule?
Problem 2:
when
event: Event(text matches .*rule5.* ))
eventList : LinkedList(size == 5)
from collect( Event(text == event.text)
then System.out.println(
rule5 is fired + eventList.size());
After adding 5 events, I see 5 log msg instead of one as I'd expect.
If I add more events, I will see more log. How do I tell LHS to reset the
count from 0.
Basically, I want to take 1 event out of 5 similar events (suppressing
filtering). So if there are 10 similar events, my RHS should activate 2 times,
not 10 times.
Thanks,
-av
-
Ready for the edge of your seat? Check out tonight's top picks on Yahoo! TV.
___
rules-users mailing list
rules-users@lists.jboss.org
https://lists.jboss.org/mailman/listinfo/rules-users
--
Edson Tirelli
Software Engineer - JBoss Rules Core Developer
Office: +55 11 3529-6000
Mobile: +55 11
Re: [rules-users] How to design a rule using collect for filtering? Thanks.
No single simple answer here. You need to check what would better fit
your use case.
The thing is: it is not possible to limit the number of matches to a
collect statement... all matching instances WILL match it and be collected.
No really clean way I can think about, but a few possible options
(haven't executed them, but shall work):
1. Simply execute the actions multiple times in the consequence:
when
eventList : LinkedList( $size : size = 5 ) from collect( Event(text
matches .*rule5.* ))
*then
for( int i = 0; i $size/5; i++ )
*
System.out.println(rule5 is fired + eventList.size());
end
2. Flag used facts:
when
eventList : LinkedList( size = 5 ) from collect( Event(text matches
.*rule5.*, processed == false ))
*then
* System.out.println(rule5 is fired + eventList.size());
*for( int i = 0; i 5; i++ ) {
Event e = **(Event) eventList.get( i );**
e.setProcessed( true );
update( e );
*
}
end
2. Retract used facts:
when
eventList : LinkedList( size = 5 ) from collect( Event(text matches
.*rule5.* ))
*then
* System.out.println(rule5 is fired + eventList.size());
*for( int i = 0; i 5; i++ ) {
Event e = **(Event) eventList.get( i );**
retract( e );
*
}
end
Hope it helps.
Edson
2007/8/10, Anh Vuong [EMAIL PROTECTED]:
Hi,
I'd like to use keyword collect to do my filtering but its behaviour
confused me, please advise. I greatly appreciate your help.
Problem 1:
when
eventList : LinkedList(size == 5)
from collect( Event(text matches
.*rule5.* ))
*then* System.out.println(
rule5 is fired + eventList.size());
I still do not see any log msg after adding 5+ events. Is something wrong
with my rule?
Problem 2:
when
event: Event(text matches .*rule5.* ))
eventList : LinkedList(size == 5)
from collect( Event(text == event.text)
*then* System.out.println(
rule5 is fired + eventList.size());
After adding 5 events, I see 5 log msg instead of one as I'd expect.
If I add more events, I will see more log. How do I tell LHS to reset the
count from 0.
Basically, I want to take 1 event out of 5 similar events (suppressing
filtering). So if there are 10 similar events, my RHS should activate 2
times, not 10 times.
Thanks,
-av
--
Ready for the edge of your seat? Check out tonight's top
pickshttp://us.rd.yahoo.com/evt=48220/*http://tv.yahoo.com/on Yahoo! TV.
___
rules-users mailing list
rules-users@lists.jboss.org
https://lists.jboss.org/mailman/listinfo/rules-users
--
Edson Tirelli
Software Engineer - JBoss Rules Core Developer
Office: +55 11 3529-6000
Mobile: +55 11 9287-5646
JBoss, a division of Red Hat @ www.jboss.com
___
rules-users mailing list
rules-users@lists.jboss.org
https://lists.jboss.org/mailman/listinfo/rules-users
[rules-users] How to design a rule using collect for filtering? Thanks.
Hi, I'd like to use keyword collect to do my filtering but its behaviour confused me, please advise. I greatly appreciate your help. Problem 1: when eventList : LinkedList(size == 5) from collect( Event(text matches .*rule5.* )) then System.out.println(rule5 is fired + eventList.size()); I still do not see any log msg after adding 5+ events. Is something wrong with my rule? Problem 2: when event: Event(text matches .*rule5.* )) eventList : LinkedList(size == 5) from collect( Event(text == event.text) then System.out.println(rule5 is fired + eventList.size()); After adding 5 events, I see 5 log msg instead of one as I'd expect. If I add more events, I will see more log. How do I tell LHS to reset the count from 0. Basically, I want to take 1 event out of 5 similar events (suppressing filtering). So if there are 10 similar events, my RHS should activate 2 times, not 10 times. Thanks, -av - Ready for the edge of your seat? Check out tonight's top picks on Yahoo! TV. ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users
