[rules-users] LHS Dao Calls

[Edson Tirelli]

   Sanjay,

   Are you trying with trunk? there was an issue using globals inside
predicates that was fixed after M1...
   Let me know...

   []s
   Edson

2007/4/6, Sanjay Singh - s0singh <Sanjay.Singh at wal-mart.com>:
>
>  Thanks Edson .. i tried with these syntaxes but does not work .. any
> other clues  ? just to let you know that itemValidationDao is declared
> global and itemvo is asserted
>
> *when*
>
> *item : ItemVo(itemStatusCode != ItemVo.STATUS_ACTIVE , (
> itemValidationDao.isValidItemStatus(itemStatusCode)))*
>
> Caused by: org.drools.rule.InvalidRulePackage: unknown:15:70 Unexpected
> token '('
>
> unknown:16:1 mismatched token: [@160,673:676='then',<33>,16:1]; expecting
> type ')'
>
> unknown:17:29 Unexpected token '"itemStatusCode"'
>
> unknown:18:22 Unexpected token '"Item is cross ref prime"'
>
> *when*
>
> *item : ItemVo(statusCode : itemStatusCode != ItemVo.STATUS_ACTIVE ,
> itemValidationDao.isValidItemStatus(statusCode))*
>
> Caused by: org.drools.rule.InvalidRulePackage: unknown:15:70 Unexpected
> token 'itemValidationDao'
>
> unknown:16:1 mismatched token: [@158,671:674='then',<33>,16:1]; expecting
> type ')'
>
> unknown:17:29 Unexpected token '"itemStatusCode"'
>
> unknown:18:22 Unexpected token '"Item is cross ref prime"'
>
> This also does not seem to work -- i have 3.1.0 M1 version ..
> item : ItemVo ( itemStatusCode == ItemVo.STATUS_ACTIVE | ==
> ItemVo.STATUS_DELETE )
> while this still works :
> item : ItemVo(itemStatusCode == ItemVo.STATUS_INACTIVE) or
> ItemVo(itemStatusCode == ItemVo.STATUS_DELETE)
>
>  ------------------------------
> *From:* rules-users-bounces at lists.jboss.org [mailto:
> rules-users-bounces at lists.jboss.org] *On Behalf Of *Edson Tirelli
> *Sent:* Friday, April 06, 2007 10:22 AM
> *To:* Rules Users List
> *Subject:* Re: [rules-users] LHS Dao Calls
>
>
>    Sunjay,
>
>    Methods called by using the "from" CE are expected to return a
> collection of VO's, not boolean results. For your case, probably what you
> want is something like:
>
> ItemVo( statusCode : itemStatusCode != null, (*
> itemValidationDao.isValidItemStatus(statusCode)*) )
>
>    A predicate allow you to call a method returning a boolean value and
> use it as a constraint.
>
>    []s
>    Edson
>
> 2007/4/5, Sanjay Singh - s0singh <Sanjay.Singh at wal-mart.com>:
> >
> >  Here is a quick test i was trying to do for calling the dao in LHS but
> > it fails ... what am i missing ..
> >
> > global com.itemfile.item.dao.ItemValidationDao itemValidationDao;
> >
> > global com.itemfile.rules.ValidationErrorMap errors;
> >
> > rule "Item should have a valid status"
> >
> > when
> >
> > ItemVo( statusCode : itemStatusCode != null)
> >
> > *ItemVo( statusCode == true ) from itemValidationDao.isValidItemStatus
> > (statusCode)*
> >
> > then
> >
> > errors.addValidationError("nullItemStatusCode","Item Status Code is
> > null");
> >
> > System.out.println("Item Base Defaults Called" +
> > itemValidationDao.isValidItemStatus(statusCode));
> >
> > System.out.println("Item Status Code is null");
> >
> > end
> >
> > Caused by: org.drools.rule.InvalidRulePackage: unknown:32:28 Unexpected
> > token 'itemValidationDao'
> >
> > isValidItemStatus ()  method returns a boolean and i need to check if
> > thats true than go to the RHS side ....  somehow it does not recognize
> > itemValidationDao in LHS side .. RHS same call works ...
> >
> >
> > Can anybody suggest how to call database in LHS ...
> >
> > thanks
> >
> > ------------------------------
> >
> >
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>
>
> --
>   Edson Tirelli
>   Software Engineer - JBoss Rules Core Developer
>   Office: +55 11 3124-6000
>   Mobile: +55 11 9218-4151
>   JBoss, a division of Red Hat @ www.jboss.com
>
> ------------------------------
>
>
> *
> *******************************************************************
> *** This email and any files transmitted with it are confidential
> and intended solely for the individual or entity to whom they are
> addressed. If you have received this email in error destroy it
> immediately. ******************************************************
> **************** Wal-Mart Confidential ****************************
> ******************************************
> *
>
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>


-- 
  Edson Tirelli
  Software Engineer - JBoss Rules Core Developer
  Office: +55 11 3124-6000
  Mobile: +55 11 9218-4151
  JBoss, a division of Red Hat @ www.jboss.com
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