probably better ask the user forum, this is dev. Unless this has dev ramifications, which it doesn't (yet).<br><br>dev == developing the engine itself (and tools) not so much for writing rules and design of applications ;)
<br><br><div><span class="gmail_quote">On 3/23/07, <b class="gmail_sendername">Premkumar Stephen</b> <<a href="mailto:prem18@gmail.com">prem18@gmail.com</a>> wrote:</span><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
Hi,<br><br>Consider that I have 500 instances of interface userI. Now, there are 3000 rules currently written based on a combination of these instances.<br><br><span style="color: rgb(102, 102, 204);">if {</span><br style="color: rgb(102, 102, 204);">
<span style="color: rgb(102, 102, 204);"> $a : userI (name = "A")</span><br style="color: rgb(102, 102, 204);"><span style="color: rgb(102, 102, 204);"> $b : userI (name = "B")</span><br style="color: rgb(102, 102, 204);">
<span style="color: rgb(102, 102, 204);">}</span><br style="color: rgb(102, 102, 204);"><span style="color: rgb(102, 102, 204);">then</span><br style="color: rgb(102, 102, 204);"><span style="color: rgb(102, 102, 204);">
{
</span><br style="color: rgb(102, 102, 204);"><span style="color: rgb(102, 102, 204);"> //do some actions</span><br style="color: rgb(102, 102, 204);"><span style="color: rgb(102, 102, 204);">}</span><br><br>How many tests are needed for a match in the RETE network for this rule?
<br><br>If I created 500 classes, one for each object, such as UserA implements userI and so on... my rule will look like:<br><br><span style="color: rgb(102, 102, 204);">if {</span><br style="color: rgb(102, 102, 204);">
<span style="color: rgb(102, 102, 204);"> $a : UserA()</span><br style="color: rgb(102, 102, 204);"><span style="color: rgb(102, 102, 204);">
$b : UserB()</span><br style="color: rgb(102, 102, 204);"><span style="color: rgb(102, 102, 204);">
}</span><br style="color: rgb(102, 102, 204);"><span style="color: rgb(102, 102, 204);">
then</span><br style="color: rgb(102, 102, 204);"><span style="color: rgb(102, 102, 204);">
{</span><br style="color: rgb(102, 102, 204);"><span style="color: rgb(102, 102, 204);">
//do some actions</span><br style="color: rgb(102, 102, 204);"><span style="color: rgb(102, 102, 204);">
}<br><br><span style="color: rgb(0, 0, 0);">Will this lead to better performance since there will only be one such instance of this object?<br><br>As for class-loading concerns, will there be a parsing/memory penalty to be paid for having 500 classes now instead of one?
<br><br>Thanks!<br style="color: rgb(102, 102, 204);"></span></span>
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