[rules-users] Lazy Planning Value Validation

[jonathan.labin]

Thanks for the feedback.  I'll look into DefaultDecider to see if I can make
a version that suits this need and hold my breath for multi-step score
evaluation.

For clarity I'd like to address your comment below:


ge0ffrey wrote
>> If the assignment turns out to be invalid in this check, I'd like to
>> remove
>> it from the Value Range so it is never considered again.
> That's weird:
> - either you can predict it's never going to be valid for a certain 
> entity, no matter the variable state of the other entities => use 
> @ValueRange(FROM_ENTITY)
> - or you can't (not without taking a look at the variable state of the 
> other entities => invalid for a single solution does not mean you can 
> just remove it to be never considered again

You're right.  In this case, I CAN predict that it's never going to be valid
for a certain entity.  My concern is the computational effort that is
required in order to make that decision.  I'm afraid that making that
determination for every single planning value (a huge space) would take too
long.  Since many of those planning values are unlikely to yield a valuable
score, I was hoping to delay the validation until I know they may be useful
in a solution.

Would removing a planning value from the value range at run time be
problematic?

Jon



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