<div dir="ltr">You have the answer in your example, reserved word "contains" will give you that information.<br><br clear="all">Scott Burrows<br><br>
<br><br><div class="gmail_quote">On Sat, Aug 23, 2008 at 9:23 AM, David Cracauer <span dir="ltr"><<a href="mailto:dcracauer@earthlink.net">dcracauer@earthlink.net</a>></span> wrote:<br><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
<br>
Hi,<br>
I'm getting stuck on this and I'm hoping someone can help..<br>
I need to be able to check that a collection contains one, and only one item<br>
from another collection.<br>
<br>
Ideally, I would do something like this:<br>
<br>
a:Answer(responses contains one of ("a","b","c"));<br>
<br>
Is there a way do do this without resorting to evals or predicate<br>
expressions? (drools 4.07)<br>
<br>
Thanks,<br>
Dave<br>
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