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<p class="OSRBodyText" style="">Thanks Jeffery.
I'll try this but what if I have more complex condition e.g. </p>
<p class="OSRBodyText" style=""><br>
Order ($discount : discount, $items : items)<br>
Item(grade > 3 && (quantity < 5 || $discount > 10)) from $items</p><p class="OSRBodyText" style=""><br></p>
<hr id="stopSpelling">Date: Tue, 23 Feb 2010 15:14:18 -0800<br>From: <a href="http://n3.nabble.com/user/SendEmail.jtp?type=node&node=412081&i=0" target="_top" rel="nofollow">[hidden email]</a><br>To: <a href="http://n3.nabble.com/user/SendEmail.jtp?type=node&node=412081&i=1" target="_top" rel="nofollow">[hidden email]</a><br>Subject: Re: Using Collections in LHS<br><br>
<div class="ecxSection1">
<p class="ecxMsoNormal"><span style="font-size: 11pt; font-family: 'Calibri','sans-serif'; color: rgb(31, 73, 125);">I think what you are looking for is the following. Someone
please correct me if I am incorrect.</span></p>
<p class="ecxMsoNormal"><span style="font-size: 11pt; font-family: 'Calibri','sans-serif'; color: rgb(31, 73, 125);"> </span></p>
<p class="ecxMsoNormal"><span style="font-size: 11pt; font-family: 'Calibri','sans-serif'; color: rgb(31, 73, 125);">when</span></p>
<p class="ecxMsoNormal" style="text-indent: 0.5in;"><span style="font-size: 11pt; font-family: 'Calibri','sans-serif'; color: rgb(31, 73, 125);">Order($discount : discount
> 10, $items: items)</span></p>
<p class="ecxMsoNormal" style="text-indent: 0.5in;"><span style="font-size: 11pt; font-family: 'Calibri','sans-serif'; color: rgb(31, 73, 125);">Item(grade > 3) from
$items</span></p>
<p class="ecxMsoNormal"><span style="font-size: 11pt; font-family: 'Calibri','sans-serif'; color: rgb(31, 73, 125);">then</span></p>
<p class="ecxMsoNormal" style="text-indent: 0.5in;"><span style="font-size: 10pt; font-family: 'Verdana','sans-serif';">System.err.print(“Discount is not
allowed with items having grade 3 or higher”);</span><span style="font-size: 11pt; font-family: 'Calibri','sans-serif'; color: rgb(31, 73, 125);"></span></p>
<p class="ecxMsoNormal"><span style="font-size: 11pt; font-family: 'Calibri','sans-serif'; color: rgb(31, 73, 125);"> </span></p>
<p class="ecxMsoNormal"><span style="font-size: 11pt; font-family: 'Calibri','sans-serif'; color: rgb(31, 73, 125);"> </span></p>
<p class="ecxMsoNormal"><span style="font-size: 11pt; font-family: 'Calibri','sans-serif'; color: rgb(31, 73, 125);">This would fire when an Order has a discount greater than 10 and
an item with a grade greater than 3.</span></p>
<p class="ecxMsoNormal"><span style="font-size: 11pt; font-family: 'Calibri','sans-serif'; color: rgb(31, 73, 125);">Not sure why you even need the $discount variable. You
could just do Order(discount > 10, $items : items) for the first line of the
when clause.</span></p>
<p class="ecxMsoNormal"><span style="font-size: 11pt; font-family: 'Calibri','sans-serif'; color: rgb(31, 73, 125);"> </span></p>
<p class="ecxMsoNormal"><span style="font-size: 11pt; font-family: 'Calibri','sans-serif'; color: rgb(31, 73, 125);"> </span></p>
<div>
<div style="border-style: solid none none; border-color: rgb(181, 196, 223) -moz-use-text-color -moz-use-text-color; border-width: 1pt medium medium; padding: 3pt 0in 0in;">
<p class="ecxMsoNormal"><b><span style="font-size: 10pt; font-family: 'Tahoma','sans-serif';">From:</span></b><span style="font-size: 10pt; font-family: 'Tahoma','sans-serif';">
<a href="http://n3.nabble.com/user/SendEmail.jtp?type=node&node=412055&i=0" rel="nofollow" target="_top" link="external">[hidden email]</a>
[mailto:<a href="http://n3.nabble.com/user/SendEmail.jtp?type=node&node=412055&i=1" rel="nofollow" target="_top" link="external">[hidden email]</a>] <b>On Behalf Of </b>Shabbir Dhari<br>
<b>Sent:</b> Tuesday, February 23, 2010 5:27 PM<br>
<b>To:</b> <a href="http://n3.nabble.com/user/SendEmail.jtp?type=node&node=412055&i=2" rel="nofollow" target="_top" link="external">[hidden email]</a><br>
<b>Subject:</b> Re: [rules-users] Using Collections in LHS</span></p>
</div>
</div>
<p class="ecxMsoNormal"> </p>
<p class="ecxMsoNormal">Hi W<br>
<br>
I know about case sensitivity issue. How can I combine both Order and Item in
one condition. I tried all possibilities but getting syntax error.<br>
<br>
For example: </p>
<p class="ecxMsoNormal">Order ($items : items, $discount : discount > 10,
Item(grade > 3) from $items) // gives error</p>
<p class="ecxMsoNormal"> </p>
<p class="ecxMsoNormal">Can please code this condition correctly for me?</p>
<p class="ecxMsoNormal"> </p>
<p class="ecxMsoNormal">Dhari</p>
<p class="ecxMsoNormal" style="margin-bottom: 12pt;"><span style="font-size: 10pt; font-family: 'Verdana','sans-serif';"> </span></p>
<div class="ecxMsoNormal" style="text-align: center;" align="center"><span style="font-size: 10pt; font-family: 'Verdana','sans-serif';">
<hr id="ecxstopSpelling" width="100%" align="center" size="2">
</span></div>
<p class="ecxMsoNormal" style="margin-bottom: 12pt;"><span style="font-size: 10pt; font-family: 'Verdana','sans-serif';">Date: Tue, 23 Feb 2010 13:43:01 +0100<br>
From: <a href="http://n3.nabble.com/user/SendEmail.jtp?type=node&node=412055&i=3" rel="nofollow" target="_top" link="external">[hidden email]</a><br>
To: <a href="http://n3.nabble.com/user/SendEmail.jtp?type=node&node=412055&i=4" rel="nofollow" target="_top" link="external">[hidden email]</a><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</span></p>
<div>
<p class="ecxMsoNormal"><span style="font-size: 10pt; font-family: 'Verdana','sans-serif';">On
Tue, Feb 23, 2010 at 1:11 PM, dhari <<a href="http://n3.nabble.com/user/SendEmail.jtp?type=node&node=412055&i=5" rel="nofollow" target="_top" link="external">[hidden email]</a>>
wrote:</span></p>
<p class="ecxMsoNormal"><span style="font-size: 10pt; 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>
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