<br> Use the self reference field "this":<br><br>List( this contains "something" )<br><br> []s<br> Edson<br><br><br><div class="gmail_quote">2008/4/27 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;">Hi. I understand that the "contains" operator works as follows (from the<br>
drools manual):<br>
<br>
<blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); padding-left: 1ex;">
'contains' is used to check if a field's Collection or array contains<br>
the specified value.<br>
</blockquote>
<br>
However, what if the fact itself is a collection and I want to know<br>
whether or not that collect contains an item? For example, say I had an<br>
ArrayList instance inserted as a fact in the rulebase and in one of my<br>
queries my predicate is to express that that ArrayList instance contains<br>
a certain object. Any ideas? Thanks!<br>
<br>
Raffi<br>
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</blockquote></div><br><br clear="all"><br>-- <br> Edson Tirelli<br> JBoss Drools Core Development<br> Office: +55 11 3529-6000<br> Mobile: +55 11 9287-5646<br> JBoss, a division of Red Hat @ <a href="http://www.jboss.com">www.jboss.com</a>