On 27 July 2011 23:27, lhorton <span dir="ltr"><<a href="mailto:LHorton@abclegal.com">LHorton@abclegal.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;">
We are at 5.2.0 Final<br>
<br>The rule must now capture the<br>
return from the call to the remote service, in order to see the changes made by the remote service call.<br>
<br>
Within the rule, this change is working fine. The RHS was:<br>
<br>
applicationService.applyInstruction($step);<br>
<br>
as above, the $step fact would not be updated within the rule WM now that<br>
the service is called remotely. However, when I changed this to<br>
<br>
$step = applicationService.applyInstruction($step);<br></blockquote><div><br>This just changes a local (binding) variable; it does not change the object the reference of which is availabe via the variable. (As in Java.)<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>
then $step did have the changes(I am verifying this by writing debug info to<br>
the log). BUT, the object that was passed in to execute() on the knowledge<br>
session did NOT have the changes. I have tried several things to fix this.<br>
one was to update($step) but this failed with "Update error: handle not<br>
found for object,"</blockquote><div><br>The result of the RMI is an entirely new object, which you can't update.<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;">
I assume because the fact handle changed in the object<br>
returned from the service call.<br>
<br>
I also tried some variations on retracting and inserting the step:<br>
<br>
retract($step);<br>
$step = applicationService.applyInstruction($step);<br>
insert($step);<br>
<br></blockquote><div><br>The out-identifier of the "insert" command is bound to the fact handle resulting from the original insert, so you can't get another object via this identifier.<br> </div><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
and also tried using a different variable name:<br>
<br>
retract($step);<br>
$step2 = applicationService.applyInstruction($step);<br>
insert($step2);<br>
update($step2);<br>
<br>
both these above did not get errors, but also did not cause the updated<br>
object to return from session.execute() call.<br></blockquote><div><br>Same thing.<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>
To summarize:<br>
in a call to execute() on a stateless knowledge session, an object is passed<br>
in<br>
a rule fires that calls a remote service that modifies the object<br>
within the rule, we catch the changed object that is returned from the<br>
service call<br>
within the rule, the changes to the object ARE visible<br>
on the return from execute(), the changes are NOT visible<br>
<br></blockquote><div><br>You have several options.<br><br>1. Insert a second object Box { Step step;... } with an out-identifier and do <br> retract($step);<br>
$step = applicationService.applyInstruction($step);<br> insert($step);<br> modify( $box ){ setStep( $step ) }<br>With multiple Step objects being around, you'll have to use as many Boxes and associate them with the original Step object as a second field.<br>
<br>2. Store the new $step into a global Box and use the getGlobal command.<br><br>3. Use the getObjects command, possibly with a filter to get only Step objects.<br><br>-W<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;">
thanks for your help...<br>
<font color="#888888"><br>
<br>
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