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 <ron.difrango@gmail.com>:
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
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