<br> Interesting. I had never tried it without the ".class" static field in the class name. I need to investigate this a further but I think what is happening behind the scenes is that since you are using nested accessors (option.class), it is getting transparently re-written into an inline eval(). This should not be a big deal, since you don't have (I guess) too many classes and indexing/hashing would not help you that much either. So I guess performance is probably the same, but as you said, more readable.<br>
<br> Question: what is the actual type of your "option" field? I mean, what class does getOption() returns? Object?<br><br> []s<br> Edson<br><br><br><div class="gmail_quote">2008/5/24 Barry Kaplan <<a href="mailto:groups1@memelet.com">groups1@memelet.com</a>>:<br>
<blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;"><br>
Edson, I do not assert the Instruments, on the Positions which contains<br>
multiple Instruments. I an trying to match Option Positions (ie, Positions<br>
that contain one or more Option legs).<br>
<br>
What I did was...<br>
<div class="Ih2E3d"><br>
when<br>
position : Position(option : instrument, option.class ==<br>
</div>OptionInstrument)<br>
<br>
...and this works correctly. Is the above more or less efficient than using<br>
eval or the from-clause? It certainly is easier to read.<br>
<br>
thanks!<br>
<br>
-barry<br>
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</div></div></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>