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<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>I think what you are looking for is the following. Someone
please correct me if I am incorrect.<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>when<o:p></o:p></span></p>
<p class=MsoNormal style='text-indent:.5in'><span style='font-size:11.0pt;
font-family:"Calibri","sans-serif";color:#1F497D'>Order($discount : discount
> 10, $items: items)<o:p></o:p></span></p>
<p class=MsoNormal style='text-indent:.5in'><span style='font-size:11.0pt;
font-family:"Calibri","sans-serif";color:#1F497D'>Item(grade > 3) from
$items<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>then<o:p></o:p></span></p>
<p class=MsoNormal style='text-indent:.5in'><span style='font-size:10.0pt;
font-family:"Verdana","sans-serif"'>System.err.print(“Discount is not
allowed with items having grade 3 or higher”);</span><span
style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>This would fire when an Order has a discount greater than 10 and
an item with a grade greater than 3.<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>Not sure why you even need the $discount variable. You
could just do Order(discount > 10, $items : items) for the first line of the
when clause.<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
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<p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>From:</span></b><span
style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>
rules-users-bounces@lists.jboss.org
[mailto:rules-users-bounces@lists.jboss.org] <b>On Behalf Of </b>Shabbir Dhari<br>
<b>Sent:</b> Tuesday, February 23, 2010 5:27 PM<br>
<b>To:</b> rules-users@lists.jboss.org<br>
<b>Subject:</b> Re: [rules-users] Using Collections in LHS<o:p></o:p></span></p>
</div>
</div>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>Hi W<br>
<br>
I know about case sensitivity issue. How can I combine both Order and Item in
one condition. I tried all possibilities but getting syntax error.<br>
<br>
For example: <o:p></o:p></p>
<p class=MsoNormal>Order ($items : items, $discount : discount > 10,
Item(grade > 3) from $items) // gives error<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>Can please code this condition correctly for me?<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>Dhari<o:p></o:p></p>
<p class=MsoNormal style='margin-bottom:12.0pt'><span style='font-size:10.0pt;
font-family:"Verdana","sans-serif"'><o:p> </o:p></span></p>
<div class=MsoNormal align=center style='text-align:center'><span
style='font-size:10.0pt;font-family:"Verdana","sans-serif"'>
<hr size=2 width="100%" align=center id=stopSpelling>
</span></div>
<p class=MsoNormal style='margin-bottom:12.0pt'><span style='font-size:10.0pt;
font-family:"Verdana","sans-serif"'>Date: Tue, 23 Feb 2010 13:43:01 +0100<br>
From: wolfgang.laun@gmail.com<br>
To: rules-users@lists.jboss.org<br>
Subject: Re: [rules-users] Using Collections in LHS<br>
<br>
Discount is a field of Order and must not appear in an Item(...).<br>
Probably you want:<br>
Order ( $discount : Discount > 10,...<br>
<br>
Also, most likely, all your fields need to be written with a lower case initial
letter,<br>
Order ( $discount : discount > 10, $items : items)<br>
<br>
-W<o:p></o:p></span></p>
<div>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Verdana","sans-serif"'>On
Tue, Feb 23, 2010 at 1:11 PM, dhari <<a href="mailto:sdhari@hotmail.com">sdhari@hotmail.com</a>>
wrote:<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Verdana","sans-serif"'><br>
In this scenario I do have typical Order and Items data structure. I want to<br>
implement various business rules where I want to check both Order attributes<br>
and Item attributes together.<br>
<br>
Order [ Date, Discount, Amount, Customer, Type, Items]<br>
Item [ Quantity, Rate, ExpiresDate, Grade ]<br>
<br>
I am trying to implements following rules but all gives me syntax error. I<br>
wondering if someone can help me in.<br>
<br>
<br>
rule one<br>
when<br>
Order ( $discount : Discount, $items : Items)<br>
Item ($discount > 10 && Grade > 3)
from $items<br>
then<br>
System.err.print(Discount is not allowed with items
having grade 3 or<br>
higher)<br>
end<br>
<br>
rule two<br>
when<br>
Order ( $discount : Discount, $items : Items)<br>
Item ($discount > 20 || Quantity < 5 )
from $items<br>
then<br>
//do some thinge<br>
end<br>
<span style='color:#888888'>--<br>
View this message in context: <a
href="http://n3.nabble.com/Using-Collections-in-LHS-tp386923p386923.html">http://n3.nabble.com/Using-Collections-in-LHS-tp386923p386923.html</a><br>
Sent from the Drools - User mailing list archive at Nabble.com.<br>
<br>
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