On 01-11-13 19:38, Juan Ignacio
Barisich wrote:
Hi everybody
I am using optaplanner in real-time style. My
application domain is similar to the "Vehicle
Routing" example ( http://docs.jboss.org/drools/release/6.0.0.CR5/optaplanner-docs/html_single/index.html#vehicleRouting).
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:
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.
The fact removing that I made is like:
solver.addProblemFactChange(new ProblemFactChange() {
@Override
public void doChange(ScoreDirector
scoreDirector) {
...
scoreDirector.beforeEntityRemoved(toRemove);
workingSolution.getCustomerList().remove(toRemove);
the remove() method will make no difference because the Customer
"toRemove" instance
is not the same instance as which is in the workingSolution's
Customer list.
See the CloudBalancing's PRoblemFactChange implementation how to
solve this.
And one of the warnings in the Real-time planning section of the
docs to understand it better:)
scoreDirector.afterEntityRemoved(toRemove);
}
});
I think the problem is there. Do you know what I'm doing
wrong?
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.
I'd
appreciate any ideas on how to resolve this.
Best regards,
Juan Ignacio Barisich
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