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<DIV><SPAN STYLE="FONT-SIZE: 7.5pt; COLOR: gray; mso-bidi-font-family: Arial"><FONT COLOR="gray" FACE="Arial" SIZE="1"><SPAN STYLE="FONT-SIZE: 14pt; FONT-FAMILY: 'Arial','sans-serif'"><FONT SIZE="2"><FONT COLOR="#000000" FACE="Times New Roman" SIZE="3"><FONT FACE="Arial" SIZE="1"><FONT SIZE="2"><div class=WordSection1><p class=MsoNormal><span style='color:#1F497D'>Hi,<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='color:#1F497D'>I am using Drools version 5.0 . I am facing an issue in my LHS that I haven’t been able to figure out how to resolve :- <o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='color:#1F497D'>The rule looks like this :-<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal style='text-autospace:none'><b><span style='font-size:10.0pt;font-family:"Courier New";color:#960000'>when</span></b><span style='font-size:10.0pt;font-family:"Courier New"'><o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-size:10.0pt;font-family:"Courier New";color:black'> $customerCart : CustomerGrid($c_holdings : cartHoldings, $c_productTypes: productTypes, $c_details : customerDetails)</span><span style='font-size:10.0pt;font-family:"Courier New"'><o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-size:10.0pt;font-family:"Courier New";color:black'> $productType : java.lang.String() </span><b><span style='font-size:10.0pt;font-family:"Courier New";color:#960000'>from</span></b><span style='font-size:10.0pt;font-family:"Courier New";color:black'> $c_productTypes</span><span style='font-size:10.0pt;font-family:"Courier New"'><o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-size:10.0pt;font-family:"Courier New";color:black'> $productType_total : Double() </span><span style='font-size:10.0pt;font-family:"Courier New"'><o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-size:10.0pt;font-family:"Courier New";color:black'> </span><b><span style='font-size:10.0pt;font-family:"Courier New";color:#960000'>from</span></b><span style='font-size:10.0pt;font-family:"Courier New";color:black'> </span><b><span style='font-size:10.0pt;font-family:"Courier New";color:#960000'>accumulate</span></b><span style='font-size:10.0pt;font-family:"Courier New";color:black'> (</span><span style='font-size:10.0pt;font-family:"Courier New"'><o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-size:10.0pt;font-family:"Courier New";color:black'> CustomerHolding(productType == $productType, $value : percent) </span><b><span style='font-size:10.0pt;font-family:"Courier New";color:#960000'>from</span></b><span style='font-size:10.0pt;font-family:"Courier New";color:black'> $c_holdings,</span><span style='font-size:10.0pt;font-family:"Courier New"'><o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-size:10.0pt;font-family:"Courier New";color:black'> sum ($value)</span><span style='font-size:10.0pt;font-family:"Courier New"'><o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-size:10.0pt;font-family:"Courier New";color:black'> )</span><span style='font-size:10.0pt;font-family:"Courier New"'><o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-size:10.0pt;font-family:"Courier New";color:black'> $ch : CustomerHolding (productType == $productType, $group : productGroup) </span><b><span style='font-size:10.0pt;font-family:"Courier New";color:#960000'>from</span></b><span style='font-size:10.0pt;font-family:"Courier New";color:black'> $c_holdings</span><span style='font-size:10.0pt;font-family:"Courier New"'><o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-size:10.0pt;font-family:"Courier New";color:black'> $productType_reference : CustomerDetail(identifier (== $productType || == $group) , $productType_limit : purchaseLimit) </span><span style='font-size:10.0pt;font-family:"Courier New"'><o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-size:10.0pt;font-family:"Courier New";color:black'> </span><b><span style='font-size:10.0pt;font-family:"Courier New";color:#960000'>from</span></b><span style='font-size:10.0pt;font-family:"Courier New";color:black'> $c_details</span><span style='font-size:10.0pt;font-family:"Courier New"'><o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-size:10.0pt;font-family:"Courier New";color:black'> </span><b><span style='font-size:10.0pt;font-family:"Courier New";color:#960000'>eval</span></b><span style='font-size:10.0pt;font-family:"Courier New";color:black'> ($productType_limit < Math.abs($productType_total.doubleValue())) </span><span style='font-size:10.0pt;font-family:"Courier New"'><o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><b><span style='font-size:10.0pt;font-family:"Courier New";color:#960000'>then</span></b><span style='font-size:10.0pt;font-family:"Courier New"'><o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='color:#1F497D'> System.out.println(“XYZ”);<o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><b><span style='font-size:10.0pt;font-family:"Courier New";color:#960000'>End<o:p></o:p></span></b></p><p class=MsoNormal style='text-autospace:none'><b><span style='font-size:10.0pt;font-family:"Courier New";color:#960000'><o:p> </o:p></span></b></p><p class=MsoNormal style='text-autospace:none'><b><span style='font-size:10.0pt;font-family:"Courier New";color:#960000'><o:p> </o:p></span></b></p><p class=MsoNormal style='text-autospace:none'><span style='color:#1F497D'>The issue is with this line of code </span><span style='font-size:10.0pt;font-family:"Courier New"'><o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-size:10.0pt;font-family:"Courier New";color:black'> $ch : CustomerHolding (productType == $productType, $group : productGroup) </span><b><span style='font-size:10.0pt;font-family:"Courier New";color:#960000'>from</span></b><span style='font-size:10.0pt;font-family:"Courier New";color:black'> $c_holdings</span><span style='font-size:10.0pt;font-family:"Courier New"'><o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='color:#1F497D'>This will get executed as many times as there are number of </span><span style='font-size:10.0pt;font-family:"Courier New";color:black'>CustomerHolding objects for the given <b>$productType in the </b>$c_holdings collection<b>.<o:p></o:p></b></span></p><p class=MsoNormal style='text-autospace:none'><b><span style='font-size:10.0pt;font-family:"Courier New";color:black'>All I need to do is simply get the Associated $group with the </span></b><span style='font-size:10.0pt;font-family:"Courier New";color:black'>$productType and thus should only get executed once. <o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-size:10.0pt;font-family:"Courier New";color:black'>Any idea how to go about writing this rule ? <o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-size:10.0pt;font-family:"Courier New";color:black'><o:p> </o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-size:10.0pt;font-family:"Courier New";color:black'>Also is there a better way to write this rule ? <o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-size:10.0pt;font-family:"Courier New";color:black'><o:p> </o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-size:10.0pt;font-family:"Courier New";color:black'>Regards,<o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-size:10.0pt;font-family:"Courier New";color:black'>Akash <o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='color:#1F497D'><o:p> </o:p></span></p></div></FONT></FONT></FONT></FONT></SPAN></FONT></SPAN></DIV>
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