You're right, if you want to do this with 2 facts, you'll need to do :<br><br>
$test : Test( $y : y )<br>
Test( <br><div style="margin-left: 40px;">this == $test,<br></div><div style="margin-left: 40px;">x == ($y + 1) )<br><br></div>Chris<br><br><div class="gmail_quote">2008/5/2 Raffi Khatchadourian <<a href="mailto:khatchad@cse.ohio-state.edu">khatchad@cse.ohio-state.edu</a>>:<br>
<blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;"><div class="Ih2E3d">On Fri 2.May'08 at 10:05:20 +0100, Anstis, Michael (M.) wrote:<br>
</div><div class="Ih2E3d"><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); padding-left: 1ex;">
The "when" section matches fact (object) patterns, so your requirement<br>
could be written as:-<br>
<br>
when there is a Test Fact 'A' and another Test Fact 'B' where "the 'x'<br>
property of 'A'" equals "the 'y' property of fact 'B' plus 1" then.....<br>
<br>
This would become:-<br>
<br>
rule "Rule 1"<br>
when<br>
Test( $y : y )<br>
Test( x == ($y + 1) )<br>
</blockquote>
<br></div>
Actually, please correct me if I am mistaken, but is this condition<br>
correct? I believe that the original question is that for a single<br>
instance of class Test t, fire the rule when t.x == t.y + 1 (where 't'<br>
refers to the *same* instance of class Test). I believe the rule above<br>
would match any instance of class Test whose x value is equal to the<br>
value of the instance field y from *any* instance of class Test plus 1.<br>
Does that make sense?<br>
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