Re: [rules-users] Does when order matter?

2007-07-26 Thread Edson Tirelli 

  Yes. The same way that the order in SQL statements matter. So always
write more constraining patterns first and you will get huge performance
benefits.

  []s
  Edson

2007/7/26, Ronald R. DiFrango [EMAIL PROTECTED]:


All,

I was wondering [and maybe this has be answered before] ,but does the
order of the rules in the when clause matter?

For example I have the following:

rtvHeader : RtvHeader( headerRtvNumber : rtvNumber )
repaymentCode : RepaymentCode( actualCode : code, matchApprv !=
Y )
lineCharge : HeaderAdditionalCharge( rtvNumber == headerRtvNumber,
originalRepaymentCode == actualCode )

In my case there is a higher likelihood that I will have more
RepaymentCodes than RtvHeaders [1 of these guys] and likely less
HeaderAdditionalCharge objects.  So should the order be more like:

rtvHeader : RtvHeader( headerRtvNumber : rtvNumber )
lineCharge : HeaderAdditionalCharge( rtvNumber == headerRtvNumber,
originalRepaymentCode : originalRepaymentCode)
repaymentCode : RepaymentCode( actualCode ==
originalRepaymentCode, matchApprv != Y )

Or does it not really matter?

Thanks in advance,

Ron

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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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[rules-users] Does when order matter?

2007-07-26 Thread Ronald R. DiFrango 

All,

I was wondering [and maybe this has be answered before] ,but does the order
of the rules in the when clause matter?

For example I have the following:

   rtvHeader : RtvHeader( headerRtvNumber : rtvNumber )
   repaymentCode : RepaymentCode( actualCode : code, matchApprv != Y
)
   lineCharge : HeaderAdditionalCharge( rtvNumber == headerRtvNumber,
originalRepaymentCode == actualCode )

In my case there is a higher likelihood that I will have more RepaymentCodes
than RtvHeaders [1 of these guys] and likely less HeaderAdditionalCharge
objects.  So should the order be more like:

   rtvHeader : RtvHeader( headerRtvNumber : rtvNumber )
   lineCharge : HeaderAdditionalCharge( rtvNumber == headerRtvNumber,
originalRepaymentCode : originalRepaymentCode)
   repaymentCode : RepaymentCode( actualCode == originalRepaymentCode,
matchApprv != Y )

Or does it not really matter?

Thanks in advance,

Ron
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