[rules-users] Drools Planner: Simple problem having solution with one hard constraint broken. What’s wrong?

hevo hevo4ever-dev at yahoo.com
Mon Dec 19 17:12:02 EST 2011


For References, one possible, simple solution

Initialized with Employee.NONE

Changed Hard constraints :
1. task must Match Employee Role and must not be Employee.NONE
    -2 Constraint Occurrence
2. one Task Per Employee and must not be Employee.NONE
    -2 Constraint Occurrence
3. Task contains Employee.NONE
    -1 Constraint Occurrence

This will force the rules to select none instead of an employee who breaks
the rules.

And could be a quick fix if applied as NULL object.
Making breached rules to have higher constraints than null.

Regards and thanks for all the help.

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