<div dir="ltr"><div>You are right. <br>Do you <span id="result_box" class="" lang="en"><span class="">think</span></span> that is a bug? Or is there a hack to solve this?<br></div></div><div class="gmail_extra"><br><br><div class="gmail_quote">
2013/11/4 Geoffrey De Smet <span dir="ltr"><<a href="mailto:ge0ffrey.spam@gmail.com" target="_blank">ge0ffrey.spam@gmail.com</a>></span><br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<div bgcolor="#FFFFFF" text="#000000"><div class="im">
<br>
<div>On 04-11-13 13:10, Juan Ignacio
Barisich wrote:<br>
</div>
<blockquote type="cite">
<div dir="ltr">
<div>
<div>
<div>
<div>
<div><span name="Geoffrey De Smet">Geoffrey, thanks for
response.<br>
</span></div>
<span name="Geoffrey De Smet">The </span>the Customer
"toRemove" instance IS the same instance as which is in
the workingSolution's Customer list. In fact, in the
test example I have attached, I get that instance via:<br>
<br>
final Customer toRemove =
workingSolution.getCustomerList().get(0);<br>
</div>
</div>
</div>
</div>
</div>
</blockquote></div>
Ok, then that's not the problem indeed.<div class="im"><br>
<blockquote type="cite">
<div dir="ltr">
<div>
<div>
<div>
<div><br>
</div>
I try to reproduce the hack in CloudBalancing's
problemFactChange implementation, but with no success. I
mean, I tried:<br>
<br>
</div>
<div> // to clean the next variable of previous in the
chain<br>
</div>
<div> Standstill prev = toRemove.getPreviousStandstill();<br>
scoreDirector.beforeEntityRemoved(prev);<br>
prev.setNextCustomer(null);<br>
scoreDirector.afterEntityRemoved(prev);<br>
<br>
</div>
but this throw an exception like:<br>
java.lang.IllegalStateException: The entity (1(after 66))
has a variable (previousStandstill) with value (66(after
51)) which has a mappedBy variable (nextCustomer) with a
value (null) which is not that entity.<br>
</div>
</div>
</div>
</blockquote></div>
Ah, that explains it.<br>
<br>
Although you remove the customer instance toRemove,<br>
one of the other customers still has it as previousStandstill<br>
and/or one of the other customers still has it as nextStandstill.
<div><div class="h5"><blockquote type="cite">
<div dir="ltr">
<div>
<div>
<br>
</div>
Also, i try to clean the previous variable of the following
item in the chain:<br>
<br>
// to clean the previous variable of the following customer
in the chain<br>
Customer nextCustomer = toRemove.getNextCustomer();<br>
if (nextCustomer != null) {<br>
scoreDirector.beforeEntityRemoved(nextCustomer);<br>
nextCustomer.setPreviousStandstill(null);<br>
scoreDirector.beforeEntityRemoved(nextCustomer);<br>
}<br>
<br>
but this throw an exception like:<br>
java.lang.IllegalStateException: The ScoreDirector (class
org.optaplanner.core.impl.score.director.common.TrailingEntityMapSupport)
is corrupted, because the entity (10(after null)) for chained
planningVariable (previousStandstill) cannot be retracted: it
was never inserted.<br>
<br>
</div>
<div>Can you take a look to the test I have attached and <span lang="en"><span>guide me
to solve this?<br>
<br>
Thanks a lot.<br>
</span></span></div>
<div><span lang="en"><span>Regards<br>
</span></span></div>
<div>
<div><br>
<br>
<br>
<div><br>
<div><br>
</div>
</div>
</div>
</div>
</div>
<div class="gmail_extra"><br>
<br>
<div class="gmail_quote">2013/11/4 Geoffrey De Smet <span dir="ltr"><<a href="mailto:ge0ffrey.spam@gmail.com" target="_blank">ge0ffrey.spam@gmail.com</a>></span><br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<div bgcolor="#FFFFFF" text="#000000">
<div> <br>
<div>On 01-11-13 19:38, Juan Ignacio Barisich wrote:<br>
</div>
<blockquote type="cite">
<div dir="ltr">
<div>
<div>
<div>
<div>
<div>
<div>
<div>Hi everybody<br>
</div>
I am using optaplanner in real-time
style. My application domain is similar
to the "Vehicle Routing" example (<a href="http://docs.jboss.org/drools/release/6.0.0.CR5/optaplanner-docs/html_single/index.html#vehicleRouting" target="_blank">http://docs.jboss.org/drools/release/6.0.0.CR5/optaplanner-docs/html_single/index.html#vehicleRouting</a>).
I mean, I am using chained variables and
shadow variables. I have a problem while
trying to remove a fact (an entity), via
a ProblemFactChange:<br>
<br>
java.lang.IllegalArgumentException: The
entity instance (...) was never added to
this ScoreDirector. Usually the cause is
that that specific instance was not in
your Solution's entities.<br>
<br>
</div>
The fact removing that I made is like:<br>
<br>
solver.addProblemFactChange(new
ProblemFactChange() {<br>
<br>
@Override<br>
public void
doChange(ScoreDirector scoreDirector) {<br>
...<br>
scoreDirector.beforeEntityRemoved(toRemove);<br>
workingSolution.getCustomerList().remove(toRemove);<br>
</div>
</div>
</div>
</div>
</div>
</div>
</blockquote>
</div>
the remove() method will make no difference because the
Customer "toRemove" instance<br>
is not the same instance as which is in the
workingSolution's Customer list.<br>
<br>
See the CloudBalancing's PRoblemFactChange implementation
how to solve this.<br>
And one of the warnings in the Real-time planning section
of the docs to understand it better:)<br>
<blockquote type="cite">
<div>
<div dir="ltr">
<div>
<div>
<div>
<div>
<div>
scoreDirector.afterEntityRemoved(toRemove);<br>
}<br>
});<br>
<br>
</div>
I think the problem is there. Do you know
what I'm doing wrong?<br>
</div>
I have attached a test case based on the
"Vehicle Routing". To run it, just put that
file into the
optaplanner-distribution-6.0.0.CR5/examples/sources/src/test/java/org/optaplanner/examples/vehiclerouting/app/
directory.<br>
<br>
</div>
<a href="http://drools.46999.n3.nabble.com/file/n4017760/serverlog.zip" rel="nofollow" target="_blank"><span></span></a><span>I'd
appreciate any ideas on how to resolve this.</span></div>
Best regards,<br>
<br>
</div>
Juan Ignacio Barisich<br>
<div>
<div>
<div>
<div><br>
<br>
<br>
<br>
</div>
</div>
</div>
</div>
</div>
<br>
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