<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<meta http-equiv=Content-Type content="text/html; charset=us-ascii">
<meta name=Generator content="Microsoft Word 10 (filtered)">
<title>Function call in LHS</title>
<style>
<!--
/* Font Definitions */
@font-face
{font-family:Tahoma;
panose-1:2 11 6 4 3 5 4 4 2 4;}
/* Style Definitions */
p.MsoNormal, li.MsoNormal, div.MsoNormal
{margin:0in;
margin-bottom:.0001pt;
font-size:12.0pt;
font-family:"Times New Roman";
color:black;}
a:link, span.MsoHyperlink
{color:blue;
text-decoration:underline;}
a:visited, span.MsoHyperlinkFollowed
{color:blue;
text-decoration:underline;}
p
{margin-right:0in;
margin-left:0in;
font-size:12.0pt;
font-family:"Times New Roman";
color:black;}
pre
{margin:0in;
margin-bottom:.0001pt;
font-size:10.0pt;
font-family:"Courier New";
color:black;}
span.emailstyle19
{font-family:Arial;
color:navy;}
span.EmailStyle20
{font-family:Arial;
color:navy;}
@page Section1
{size:8.5in 11.0in;
margin:1.0in 1.25in 1.0in 1.25in;}
div.Section1
{page:Section1;}
-->
</style>
</head>
<body bgcolor=white lang=EN-US link=blue vlink=blue>
<div class=Section1>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>Wonderful! Thanks very much for your
learned response. Java syntax, then, is more reserved for the right hand
side of the rule, which makes sense, else we would see semi-colons in the
LHS. </span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'> </span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>Thanks again!</span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'> </span></font></p>
<div>
<p class=MsoNormal><font size=2 color=black face=Arial><span style='font-size:
10.0pt;font-family:Arial'>Robert Costello</span></font></p>
<p class=MsoNormal><font size=2 color=black face=Arial><span style='font-size:
10.0pt;font-family:Arial'>Lead Systems Engineer</span></font></p>
<p class=MsoNormal><font size=2 color=black face=Arial><span style='font-size:
10.0pt;font-family:Arial'>IMA Performance</span></font></p>
<p class=MsoNormal><font size=2 color=black face=Arial><span style='font-size:
10.0pt;font-family:Arial'>E3- 279A</span></font></p>
<p class=MsoNormal><font size=2 color=black face=Arial><span style='font-size:
10.0pt;font-family:Arial'>847.286.0910</span></font></p>
<p class=MsoNormal><font size=3 color=black face="Times New Roman"><span
style='font-size:12.0pt'> </span></font></p>
<p class=MsoNormal><font size=3 color=black face="Times New Roman"><span
style='font-size:12.0pt'> </span></font></p>
</div>
<p class=MsoNormal style='margin-left:.5in'><font size=2 color=black
face=Tahoma><span style='font-size:10.0pt;font-family:Tahoma;color:windowtext'>-----Original
Message-----<br>
<b><span style='font-weight:bold'>From:</span></b> rules-users-bounces@lists.jboss.org
[mailto:rules-users-bounces@lists.jboss.org] <b><span style='font-weight:bold'>On
Behalf Of </span></b>Scott Reed<br>
<b><span style='font-weight:bold'>Sent:</span></b> Monday, July 14, 2008 10:02
AM<br>
<b><span style='font-weight:bold'>To:</span></b> Rules Users List<br>
<b><span style='font-weight:bold'>Subject:</span></b> Re: [rules-users] LHS
Conditional Syntax for drl - date comparisonwith objects</span></font></p>
<p class=MsoNormal style='margin-left:.5in'><font size=3 color=black
face="Times New Roman"><span style='font-size:12.0pt'> </span></font></p>
<p class=MsoNormal style='margin-right:0in;margin-bottom:12.0pt;margin-left:
.5in'><font size=3 color=black face="Times New Roman"><span style='font-size:
12.0pt'>Oops, try this:</span></font></p>
<p class=MsoNormal style='margin-left:.5in'><b><font size=2 color="#960000"
face="Courier New"><span style='font-size:10.0pt;font-family:"Courier New";
color:#960000;font-weight:bold'>rule</span></font></b><font size=2
face="Courier New"><span style='font-size:10.0pt;font-family:"Courier New"'> </span></font><font
size=2 color=green face="Courier New"><span style='font-size:10.0pt;font-family:
"Courier New";color:green'>"Your First Rule"</span></font></p>
<p class=MsoNormal style='margin-left:.5in'><font size=2 color=black
face="Courier New"><span style='font-size:10.0pt;font-family:"Courier New"'>
</span></font></p>
<p class=MsoNormal style='margin-left:.5in'><font size=2 color=black
face="Courier New"><span style='font-size:10.0pt;font-family:"Courier New"'>
</span></font><b><font size=2 color="#960000" face="Courier New"><span
style='font-size:10.0pt;font-family:"Courier New";color:#960000;font-weight:
bold'>when</span></font></b><font size=2 face="Courier New"><span
style='font-size:10.0pt;font-family:"Courier New"'> </span></font></p>
<p class=MsoNormal style='margin-left:.5in'><font size=2 color=black
face="Courier New"><span style='font-size:10.0pt;font-family:"Courier New"'>
Date1( $end1: endDate ) </span></font></p>
<p class=MsoNormal style='margin-left:.5in'><font size=2 color=black
face="Courier New"><span style='font-size:10.0pt;font-family:"Courier New"'>
Date2( beginDate > $end1 )</span></font></p>
<p class=MsoNormal style='margin-left:.5in'><font size=2 color=black
face="Courier New"><span style='font-size:10.0pt;font-family:"Courier New"'>
</span></font><b><font size=2 color="#960000" face="Courier New"><span
style='font-size:10.0pt;font-family:"Courier New";color:#960000;font-weight:
bold'>then</span></font></b><font size=2 face="Courier New"><span
style='font-size:10.0pt;font-family:"Courier New"'> </span></font></p>
<p class=MsoNormal style='margin-left:.5in'><font size=2 color=black
face="Courier New"><span style='font-size:10.0pt;font-family:"Courier New"'>
</span></font><font size=2 color=olive face="Courier New"><span
style='font-size:10.0pt;font-family:"Courier New";color:olive'>#actions</span></font></p>
<p class=MsoNormal style='margin-left:.5in'><font size=2 color=black
face="Courier New"><span style='font-size:10.0pt;font-family:"Courier New"'>
System.out.println(</span></font><font size=2 color=green face="Courier New"><span
style='font-size:10.0pt;font-family:"Courier New";color:green'>"do
something"</span></font><font size=2 face="Courier New"><span
style='font-size:10.0pt;font-family:"Courier New"'>);</span></font></p>
<p class=MsoNormal style='margin-left:.5in'><b><font size=2 color="#960000"
face="Courier New"><span style='font-size:10.0pt;font-family:"Courier New";
color:#960000;font-weight:bold'>end</span></font></b></p>
<p class=MsoNormal style='margin-left:.5in'><font size=3 color=black
face="Times New Roman"><span style='font-size:12.0pt'><br>
Scott Reed wrote: </span></font></p>
<p class=MsoNormal style='margin-left:.5in'><b><font size=2 color="#960000"
face="Courier New"><span style='font-size:10.0pt;font-family:"Courier New";
color:#960000;font-weight:bold'>Try this:</span></font></b></p>
<p class=MsoNormal style='margin-left:.5in'><b><font size=2 color="#960000"
face="Courier New"><span style='font-size:10.0pt;font-family:"Courier New";
color:#960000;font-weight:bold'>rule</span></font></b><font size=2
face="Courier New"><span style='font-size:10.0pt;font-family:"Courier New"'> </span></font><font
size=2 color=green face="Courier New"><span style='font-size:10.0pt;font-family:
"Courier New";color:green'>"Your First Rule"</span></font></p>
<p class=MsoNormal style='margin-left:.5in'><font size=2 color=black
face="Courier New"><span style='font-size:10.0pt;font-family:"Courier New"'>
</span></font></p>
<p class=MsoNormal style='margin-left:.5in'><font size=2 color=black
face="Courier New"><span style='font-size:10.0pt;font-family:"Courier New"'>
</span></font><b><font size=2 color="#960000" face="Courier New"><span
style='font-size:10.0pt;font-family:"Courier New";color:#960000;font-weight:
bold'>when</span></font></b><font size=2 face="Courier New"><span
style='font-size:10.0pt;font-family:"Courier New"'> </span></font></p>
<p class=MsoNormal style='margin-left:.5in'><font size=2 color=black
face="Courier New"><span style='font-size:10.0pt;font-family:"Courier New"'>
$d1 : Date1( $end1: endDate ) </span></font></p>
<p class=MsoNormal style='margin-left:.5in'><font size=2 color=black
face="Courier New"><span style='font-size:10.0pt;font-family:"Courier New"'>
$d2 : Date2()</span></font></p>
<p class=MsoNormal style='margin-left:.5in'><font size=2 color=black
face="Courier New"><span style='font-size:10.0pt;font-family:"Courier New"'>
$d2 : Date2( beginDate > $end1 )</span></font></p>
<p class=MsoNormal style='margin-left:.5in'><font size=2 color=black
face="Courier New"><span style='font-size:10.0pt;font-family:"Courier New"'>
</span></font><b><font size=2 color="#960000" face="Courier New"><span
style='font-size:10.0pt;font-family:"Courier New";color:#960000;font-weight:
bold'>then</span></font></b><font size=2 face="Courier New"><span
style='font-size:10.0pt;font-family:"Courier New"'> </span></font></p>
<p class=MsoNormal style='margin-left:.5in'><font size=2 color=black
face="Courier New"><span style='font-size:10.0pt;font-family:"Courier New"'>
</span></font><font size=2 color=olive face="Courier New"><span
style='font-size:10.0pt;font-family:"Courier New";color:olive'>#actions</span></font></p>
<p class=MsoNormal style='margin-left:.5in'><font size=2 color=black
face="Courier New"><span style='font-size:10.0pt;font-family:"Courier New"'>
System.out.println(</span></font><font size=2 color=green face="Courier New"><span
style='font-size:10.0pt;font-family:"Courier New";color:green'>"do
something"</span></font><font size=2 face="Courier New"><span
style='font-size:10.0pt;font-family:"Courier New"'>);</span></font></p>
<p class=MsoNormal style='margin-left:.5in'><b><font size=2 color="#960000"
face="Courier New"><span style='font-size:10.0pt;font-family:"Courier New";
color:#960000;font-weight:bold'>end</span></font></b></p>
<p class=MsoNormal style='margin-left:.5in'><font size=3 color=black
face="Times New Roman"><span style='font-size:12.0pt'><br>
<br>
Costello, Robert wrote: </span></font></p>
<p class=MsoNormal style='margin-left:.5in'><font size=2 color=navy face=Arial><span
style='font-size:10.0pt;font-family:Arial;color:navy'>I’m having a hard
time understanding the syntax in the conditional or left hand side of the DRL.
Is it acceptable to use dot notation in the LHS? Is there a better
way to compare fields on different objects? </span></font></p>
<p class=MsoNormal style='margin-left:.5in'><font size=2 color=navy face=Arial><span
style='font-size:10.0pt;font-family:Arial;color:navy'> </span></font></p>
<p class=MsoNormal style='margin-left:.5in'><font size=2 color=navy face=Arial><span
style='font-size:10.0pt;font-family:Arial;color:navy'>In the example below, I
get an error “Unable to find class $d1. What limitations are there
syntactically on the left hand side? Any help would be greatly
appreciated. I have looked at all the examples and have googled the
problem and don’t seem to find the answer.</span></font></p>
<p class=MsoNormal style='margin-left:.5in'><font size=2 color=navy face=Arial><span
style='font-size:10.0pt;font-family:Arial;color:navy'> </span></font></p>
<p class=MsoNormal style='margin-left:.5in'><b><font size=2 color="#960000"
face="Courier New"><span style='font-size:10.0pt;font-family:"Courier New";
color:#960000;font-weight:bold'>package</span></font></b><font size=2
face="Courier New"><span style='font-size:10.0pt;font-family:"Courier New"'>
com.rules</span></font></p>
<p class=MsoNormal style='margin-left:.5in'><font size=2 color=black
face="Courier New"><span style='font-size:10.0pt;font-family:"Courier New";
color:windowtext'> </span></font></p>
<p class=MsoNormal style='margin-left:.5in'><font size=2 color=olive
face="Courier New"><span style='font-size:10.0pt;font-family:"Courier New";
color:olive'>#list any import classes here.</span></font></p>
<p class=MsoNormal style='margin-left:.5in'><b><font size=2 color="#960000"
face="Courier New"><span style='font-size:10.0pt;font-family:"Courier New";
color:#960000;font-weight:bold'>import</span></font></b><font size=2
face="Courier New"><span style='font-size:10.0pt;font-family:"Courier New"'>
com.validate.Date1</span></font></p>
<p class=MsoNormal style='margin-left:.5in'><b><font size=2 color="#960000"
face="Courier New"><span style='font-size:10.0pt;font-family:"Courier New";
color:#960000;font-weight:bold'>import</span></font></b><font size=2
face="Courier New"><span style='font-size:10.0pt;font-family:"Courier New"'>
com.validate.Date2</span></font></p>
<p class=MsoNormal style='margin-left:.5in'><b><font size=2 color="#960000"
face="Courier New"><span style='font-size:10.0pt;font-family:"Courier New";
color:#960000;font-weight:bold'>import</span></font></b><font size=2
face="Courier New"><span style='font-size:10.0pt;font-family:"Courier New"'>
java.util.Date</span></font></p>
<p class=MsoNormal style='margin-left:.5in'><font size=2 color=black
face="Courier New"><span style='font-size:10.0pt;font-family:"Courier New";
color:windowtext'> </span></font></p>
<p class=MsoNormal style='margin-left:.5in'><font size=2 color=olive
face="Courier New"><span style='font-size:10.0pt;font-family:"Courier New";
color:olive'>#declare any global variables here</span></font></p>
<p class=MsoNormal style='margin-left:.5in'><font size=2 color=black
face="Courier New"><span style='font-size:10.0pt;font-family:"Courier New";
color:windowtext'> </span></font></p>
<p class=MsoNormal style='margin-left:.5in'><b><font size=2 color="#960000"
face="Courier New"><span style='font-size:10.0pt;font-family:"Courier New";
color:#960000;font-weight:bold'>rule</span></font></b><font size=2
face="Courier New"><span style='font-size:10.0pt;font-family:"Courier New"'> </span></font><font
size=2 color=green face="Courier New"><span style='font-size:10.0pt;font-family:
"Courier New";color:green'>"Your First Rule"</span></font></p>
<p class=MsoNormal style='margin-left:.5in'><font size=2 color=black
face="Courier New"><span style='font-size:10.0pt;font-family:"Courier New"'>
</span></font></p>
<p class=MsoNormal style='margin-left:.5in'><font size=2 color=black
face="Courier New"><span style='font-size:10.0pt;font-family:"Courier New"'>
</span></font><b><font size=2 color="#960000" face="Courier New"><span
style='font-size:10.0pt;font-family:"Courier New";color:#960000;font-weight:
bold'>when</span></font></b><font size=2 face="Courier New"><span
style='font-size:10.0pt;font-family:"Courier New"'> </span></font></p>
<p class=MsoNormal style='margin-left:.5in'><font size=2 color=black
face="Courier New"><span style='font-size:10.0pt;font-family:"Courier New"'>
$d1 : Date1() </span></font></p>
<p class=MsoNormal style='margin-left:.5in'><font size=2 color=black
face="Courier New"><span style='font-size:10.0pt;font-family:"Courier New"'>
$d2 : Date2()</span></font></p>
<p class=MsoNormal style='margin-left:.5in'><font size=2 color=black
face="Courier New"><span style='font-size:10.0pt;font-family:"Courier New"'>
$d2 : Date2(beginDate > $d1.getEndDate)</span></font></p>
<p class=MsoNormal style='margin-left:.5in'><font size=2 color=black
face="Courier New"><span style='font-size:10.0pt;font-family:"Courier New"'>
</span></font><b><font size=2 color="#960000" face="Courier New"><span
style='font-size:10.0pt;font-family:"Courier New";color:#960000;font-weight:
bold'>then</span></font></b><font size=2 face="Courier New"><span
style='font-size:10.0pt;font-family:"Courier New"'> </span></font></p>
<p class=MsoNormal style='margin-left:.5in'><font size=2 color=black
face="Courier New"><span style='font-size:10.0pt;font-family:"Courier New"'>
</span></font><font size=2 color=olive face="Courier New"><span
style='font-size:10.0pt;font-family:"Courier New";color:olive'>#actions</span></font></p>
<p class=MsoNormal style='margin-left:.5in'><font size=2 color=black
face="Courier New"><span style='font-size:10.0pt;font-family:"Courier New"'>
System.out.println(</span></font><font size=2 color=green face="Courier New"><span
style='font-size:10.0pt;font-family:"Courier New";color:green'>"do
something"</span></font><font size=2 face="Courier New"><span
style='font-size:10.0pt;font-family:"Courier New"'>);</span></font></p>
<p class=MsoNormal style='margin-left:.5in'><b><font size=2 color="#960000"
face="Courier New"><span style='font-size:10.0pt;font-family:"Courier New";
color:#960000;font-weight:bold'>end</span></font></b></p>
<p class=MsoNormal style='margin-left:.5in'><font size=2 color=navy face=Arial><span
style='font-size:10.0pt;font-family:Arial;color:navy'> </span></font></p>
<p class=MsoNormal style='margin-left:.5in'><font size=2 color=navy face=Arial><span
style='font-size:10.0pt;font-family:Arial;color:navy'>Best regards,</span></font></p>
<p class=MsoNormal style='margin-left:.5in'><font size=2 color=navy face=Arial><span
style='font-size:10.0pt;font-family:Arial;color:navy'> </span></font></p>
<div>
<p class=MsoNormal style='margin-left:.5in'><font size=2 color=black
face=Arial><span style='font-size:10.0pt;font-family:Arial'>Robert Costello</span></font></p>
<p class=MsoNormal style='margin-left:.5in'><font size=3 color=black
face="Times New Roman"><span style='font-size:12.0pt'> </span></font></p>
</div>
<pre style='margin-left:.5in;text-align:center' wrap=""><font size=2
color=black face="Courier New"><span style='font-size:10.0pt'>
<hr size=4 width="90%" align=center>
</span></font></pre><pre style='margin-left:.5in'><font size=2 color=black
face="Courier New"><span style='font-size:10.0pt'> </span></font></pre><pre
style='margin-left:.5in'><font size=2 color=black face="Courier New"><span
style='font-size:10.0pt'>_______________________________________________</span></font></pre><pre
style='margin-left:.5in'><font size=2 color=black face="Courier New"><span
style='font-size:10.0pt'>rules-users mailing list</span></font></pre><pre
style='margin-left:.5in'><font size=2 color=black face="Courier New"><span
style='font-size:10.0pt'><a href="mailto:rules-users@lists.jboss.org"
moz-do-not-send=true>rules-users@lists.jboss.org</a></span></font></pre><pre
style='margin-left:.5in'><font size=2 color=black face="Courier New"><span
style='font-size:10.0pt'><a
href="https://lists.jboss.org/mailman/listinfo/rules-users"
moz-do-not-send=true>https://lists.jboss.org/mailman/listinfo/rules-users</a></span></font></pre><pre
style='margin-left:.5in'><font size=2 color=black face="Courier New"><span
style='font-size:10.0pt'> </span></font></pre>
<p class=MsoNormal style='margin-left:.5in'><font size=3 color=black
face="Times New Roman"><span style='font-size:12.0pt'> </span></font></p>
<p class=MsoNormal style='margin-left:.5in'><font size=3 color=black
face="Times New Roman"><span style='font-size:12.0pt'> </span></font></p>
</div>
</body>
</html>