[rules-users] RE: rules-users Digest, Vol 8, Issue 45
Sikkandar Nawabjan
Sikkandar.Nawabjan at ustri.com
Mon Jul 9 07:59:00 EDT 2007
anybody have the idea of what is consequneceexception....why it is occured?
am using droosl 3.0.6
org.drools.spi.ConsequenceException - org.drools.RuntimeDroolsException: java.lang.NullPointerExceptionorg.drools.spi.ConsequenceException: org.drools.RuntimeDroolsException: java.lang.NullPointerException at org.drools.common.DefaultAgenda.fireActivation(Unknown Source) at org.drools.common.DefaultAgenda.fireNextItem(Unknown Source) at org.drools.common.AbstractWorkingMemory.fireAllRules(Unknown Source) at
Thanks and Regs,
Basha
________________________________
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Subject: rules-users Digest, Vol 8, Issue 45
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Today's Topics:
1. Re: Re: No OR syntax (Ronald R. DiFrango)
2. More JBoss Rules IDE 4.x upgrade Woes (Ronald R. DiFrango)
3. Re: Re: No OR syntax (Mark Proctor)
4. Re: More JBoss Rules IDE 4.x upgrade Woes (Ronald R. DiFrango)
5. matches operator (Ashwini Joshi)
----------------------------------------------------------------------
Message: 1
Date: Sun, 8 Jul 2007 17:56:27 -0400
From: "Ronald R. DiFrango" <ron.difrango at gmail.com>
Subject: Re: [rules-users] Re: No OR syntax
To: "Mark Proctor" <mproctor at codehaus.org>
Cc: Rules Users List <rules-users at lists.jboss.org>
Message-ID:
<eb33f140707081456y5b1e2567gf3a86f67a1f2eee7 at mail.gmail.com>
Content-Type: text/plain; charset="iso-8859-1"
Nice; an in operator just like SQL :-)
On 7/7/07, Mark Proctor <mproctor at codehaus.org> wrote:
>
> Sorry it's now && and ||
> You can also us the 'in' operator
> Cheese( type in ( 'stilton', 'brie' ))
> Cheese( type not in ( 'stilton', 'brie' ))
> Cheese( type memberOf $myCheeseTypeList )
> Cheese( type not memberOf $myCheeseTypeList )
>
> Mark
>
> Ronald R. DiFrango wrote:
>
> Answered my own question:
>
> MyObject (status == StatusConstants.MATCHED | == StatusConstants.APPROVAL)
>
> On 7/7/07, Ronald R. DiFrango < ron.difrango at gmail.com> wrote:
> >
> > All,
> >
> > If I remember correctly, in the 4.x version of Drools you were adding an
> > or type syntax where you could compare a value against multiple values.
> > What is the new syntax for it?
> >
> > I am looking to do something logically like:
> >
> > MyObject (status in ("Open" or "Matched")
> >
> > Ron
> >
>
> ------------------------------
>
> _______________________________________________
> rules-users mailing list
> rules-users at lists.jboss.org
> https://lists.jboss.org/mailman/listinfo/rules-users
>
>
>
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Message: 2
Date: Sun, 8 Jul 2007 17:59:47 -0400
From: "Ronald R. DiFrango" <ron.difrango at gmail.com>
Subject: [rules-users] More JBoss Rules IDE 4.x upgrade Woes
To: "Rules Users List" <rules-users at lists.jboss.org>
Message-ID:
<eb33f140707081459h5bde7cc9ud5ddb2a0c8e52b83 at mail.gmail.com>
Content-Type: text/plain; charset="iso-8859-1"
All
I have to that upgrading a 3.0.x JBoss rules project to a 4.0.x version is
not the smoothest transition.
First, I reported that the library path is not correct but I was able to
work around this issue.
Now, I found another feature/bug. When I click on RETE view, I get the
following exception:
!ENTRY org.drools.eclipse 4 120 2007-07-08 17:54:09.181 !MESSAGE Internal
error in Drools Plugin: !STACK 0 java.lang.Exception: Unable to parse rules
to show RETE view! at
org.drools.eclipse.editors.rete.ReteViewer.loadReteModel(Unknown Source) at
org.drools.eclipse.editors.DRLRuleEditor2$3.run(Unknown Source) at
org.eclipse.jface.operation.ModalContext$ModalContextThread.run(
ModalContext.java:113) !ENTRY org.drools.eclipse 4 120 2007-07-08 17:54:
09.259 !MESSAGE Internal error in Drools Plugin: !STACK 0
java.lang.reflect.InvocationTargetException at
org.drools.eclipse.editors.DRLRuleEditor2$3.run(Unknown Source) at
org.eclipse.jface.operation.ModalContext$ModalContextThread.run(
ModalContext.java:113) Caused by: java.lang.Exception: Unable to parse rules
to show RETE view! at
org.drools.eclipse.editors.rete.ReteViewer.loadReteModel(Unknown Source) ...
2 more Root exception: java.lang.Exception: Unable to parse rules to show
RETE view! at org.drools.eclipse.editors.rete.ReteViewer.loadReteModel(Unknown
Source) at org.drools.eclipse.editors.DRLRuleEditor2$3.run(Unknown Source)
at org.eclipse.jface.operation.ModalContext$ModalContextThread.run(
ModalContext.java:113)
Do I really have to create a new Project and re-import everything over to it
to get it to work properly? Is there no upgrade feature that automatically
upgrades my project like in most other Eclipse plugins?
Thanks!
Ron
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Message: 3
Date: Sun, 08 Jul 2007 23:29:48 +0100
From: Mark Proctor <mproctor at codehaus.org>
Subject: Re: [rules-users] Re: No OR syntax
To: difranr at alumni.pitt.edu, Rules Users List
<rules-users at lists.jboss.org>
Message-ID: <4691655C.90202 at codehaus.org>
Content-Type: text/plain; charset="iso-8859-1"
The 'in' operator is just sugar for == 'stilton' || == 'brie' but we
felt it improved the declarative nature of the language sufficiently to
warrant the sugar.
Mark
Ronald R. DiFrango wrote:
> Nice; an in operator just like SQL :-)
>
> On 7/7/07, *Mark Proctor* <mproctor at codehaus.org
> <mailto:mproctor at codehaus.org>> wrote:
>
> Sorry it's now && and ||
> You can also us the 'in' operator
> Cheese( type in ( 'stilton', 'brie' ))
> Cheese( type not in ( 'stilton', 'brie' ))
> Cheese( type memberOf $myCheeseTypeList )
> Cheese( type not memberOf $myCheeseTypeList )
>
> Mark
>
> Ronald R. DiFrango wrote:
>> Answered my own question:
>>
>> MyObject (status == StatusConstants.MATCHED | ==
>> StatusConstants.APPROVAL)
>>
>> On 7/7/07, *Ronald R. DiFrango* < ron.difrango at gmail.com
>> <mailto:ron.difrango at gmail.com>> wrote:
>>
>> All,
>>
>> If I remember correctly, in the 4.x version of Drools you
>> were adding an or type syntax where you could compare a value
>> against multiple values. What is the new syntax for it?
>>
>> I am looking to do something logically like:
>>
>> MyObject (status in ("Open" or "Matched")
>>
>> Ron
>>
>>
>> ------------------------------------------------------------------------
>>
>> _______________________________________________
>> rules-users mailing list
>>
>> rules-users at lists.jboss.org <mailto:rules-users at lists.jboss.org>
>> https://lists.jboss.org/mailman/listinfo/rules-users
>> <https://lists.jboss.org/mailman/listinfo/rules-users>
>>
>
>
> ------------------------------------------------------------------------
>
> _______________________________________________
> rules-users mailing list
> rules-users at lists.jboss.org
> https://lists.jboss.org/mailman/listinfo/rules-users
>
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Message: 4
Date: Sun, 8 Jul 2007 20:19:13 -0400
From: "Ronald R. DiFrango" <ron.difrango at gmail.com>
Subject: [rules-users] Re: More JBoss Rules IDE 4.x upgrade Woes
To: "Rules Users List" <rules-users at lists.jboss.org>
Message-ID:
<eb33f140707081719q5853aaa1h9702cca86227671d at mail.gmail.com>
Content-Type: text/plain; charset="iso-8859-1"
All,
OK, a new project cleared up the RETE view. I will say the problem still
does exist where the project does not work properly unless I import the JDT
compiler.
Ron
On 7/8/07, Ronald R. DiFrango <ron.difrango at gmail.com> wrote:
>
> All
>
> I have to that upgrading a 3.0.x JBoss rules project to a 4.0.x version is
> not the smoothest transition.
>
> First, I reported that the library path is not correct but I was able to
> work around this issue.
>
> Now, I found another feature/bug. When I click on RETE view, I get the
> following exception:
>
> !ENTRY org.drools.eclipse 4 120 2007-07-08 17:54:09.181 !MESSAGE Internal
> error in Drools Plugin: !STACK 0 java.lang.Exception: Unable to parse
> rules to show RETE view! at
> org.drools.eclipse.editors.rete.ReteViewer.loadReteModel(Unknown Source)
> at org.drools.eclipse.editors.DRLRuleEditor2$3.run(Unknown Source) at
> org.eclipse.jface.operation.ModalContext$ModalContextThread.run(
> ModalContext.java:113) !ENTRY org.drools.eclipse 4 120 2007-07-08 17:54:
> 09.259 !MESSAGE Internal error in Drools Plugin: !STACK 0
> java.lang.reflect.InvocationTargetException at
> org.drools.eclipse.editors.DRLRuleEditor2$3.run(Unknown Source) at
> org.eclipse.jface.operation.ModalContext$ModalContextThread.run(
> ModalContext.java:113) Caused by: java.lang.Exception: Unable to parse
> rules to show RETE view! at
> org.drools.eclipse.editors.rete.ReteViewer.loadReteModel(Unknown Source)
> ... 2 more Root exception: java.lang.Exception: Unable to parse rules to
> show RETE view! at
> org.drools.eclipse.editors.rete.ReteViewer.loadReteModel(Unknown Source)
> at org.drools.eclipse.editors.DRLRuleEditor2$3.run(Unknown Source) at
> org.eclipse.jface.operation.ModalContext$ModalContextThread.run(
> ModalContext.java:113)
>
>
> Do I really have to create a new Project and re-import everything over to
> it to get it to work properly? Is there no upgrade feature that
> automatically upgrades my project like in most other Eclipse plugins?
>
> Thanks!
>
> Ron
>
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Message: 5
Date: Mon, 9 Jul 2007 13:05:25 +0530
From: "Ashwini Joshi" <ashwini_joshi at persistent.co.in>
Subject: [rules-users] matches operator
To: <rules-users at lists.jboss.org>
Message-ID: <00cd01c7c1fb$b72c14e0$0e6f4d0a at persistent.co.in>
Content-Type: text/plain; charset="us-ascii"
Hi,
Has anyone used the "matches" operator?
In our application we need to support startWith, endsWith operators for
string variable. I am thinking of using matches operator. But the 'matches'
operator is not working. I am trying the following code
rule "Hello World"
when
m : Message(message matches "Hello*")
then
System.out.println( "Hello World");
end
And the value set in the message is "Hello World". But it is not going into
the then clause.
If anyone has already used matches operator I would like to know how we can
use it for startswith, endsWith. How do we specify the regular expression?
Can we use "*"
Thanks,
Ashwini
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