On 9 February 2011 12:12, jwillans2 <span dir="ltr"><<a href="mailto:james.willans@ceteva.com">james.willans@ceteva.com</a>></span> wrote:<br><div class="gmail_quote"><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
<br>
Hello,<br>
<br>
My understanding was that facts evaluated using the "from" statement were<br>
not really facts and therefore were not stored in WM, therefore in:<br>
<br>
$event1Provider : Event1Provider()<br>
Event1(..) from $event1Provider.evaluate()<br>
<br>
the value of $event1Provider.evaluate() will get gc'ed (providing no other<br>
object has a handle to it). However I read in the forum topic "Why Using<br>
"from" Always Return A New Fact?" a post by Edson Tirelli which seemed to<br>
indicate that fact handles are created for values returned from the "from"<br>
statement, are these stored in WM?</blockquote><div>No.<br> </div><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;"> Do these values explicitly need to be<br>
retracted to avoid them accumulating in WM?</blockquote><div>No.<br> <br></div><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;"> Or is it the case that previous<br>
values are automatically retracted on recalls to ".evaluate" if they are<br>
!equals?<br></blockquote><div>No. "retract" is only possible after an "insert".<br><br>-W <br></div><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
<br>
Thanks,<br>
<br>
James<br>
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