As a reminder, if you need to know the ClassA to which the Student belongs you'll need to make the association to avoid cross-products:-<br><br>when<br>$s : Student( )<br>$c : ClassA( students contains $s )<br>then<br>
...<br><br><div class="gmail_quote">2010/12/27 Esteban Aliverti <span dir="ltr"><<a href="mailto:esteban.aliverti@gmail.com">esteban.aliverti@gmail.com</a>></span><br><blockquote class="gmail_quote" style="margin: 0pt 0pt 0pt 0.8ex; border-left: 1px solid rgb(204, 204, 204); padding-left: 1ex;">
You have 2 simple approaches:<div><ol><li>Insert all your Students as facts and create regular rules like <br><i>Student(name == 'something')</i></li><li>Use the <i>from</i> keyword: <br><i>$c: ClassA ()<br>Student(name == "something") from $c.students</i><br>
</li></ol><div>Best Regards,</div><br>XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX<br><font color="#888888"><br>Esteban Aliverti<br>- Developer @ <a href="http://www.plugtree.com" target="_blank">http://www.plugtree.com </a><br>
- Blog @ <a href="http://ilesteban.wordpress.com" target="_blank">http://ilesteban.wordpress.com</a></font><div><div></div><div class="h5"><br>
<br><br><div class="gmail_quote">On Mon, Dec 27, 2010 at 5:23 AM, Murali Venugopal <span dir="ltr"><<a href="mailto:murali.venugopal@sifycorp.com" target="_blank">murali.venugopal@sifycorp.com</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin: 0pt 0pt 0pt 0.8ex; border-left: 1px solid rgb(204, 204, 204); padding-left: 1ex;">
<br>
Hi,<br>
<br>
I'm inserting an Object calld ClassA into the working memory. Which has got it's students in an ArrayList<br>
<br>
Like this...<br>
<br>
public class ClassA {<br>
<br>
private String RoomNo;<br>
private ArrayList<Student> students;<br>
<br>
...<br>
<br>
}<br>
<br>
public class Student {<br>
<br>
private String name;<br>
private String rollNo;<br>
<br>
...<br>
<br>
}<br>
<br>
Now, i've to write a rule to find a particular student with his role number and fetch his name to make some decisions.<br>
<br>
I don't know to write a rule to access an Object's data member of type ArrayList and find a match. Please help.<br>
<br>
Thanks in advance.<br>
<br>
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