org.drools.planner.core.solver
Interface PlanningFactChange


public interface PlanningFactChange

A PlanningFactChange represents a change in 1 or more planning facts of a solution. Planning facts used by a Solver must not be changed while it is solving, but by scheduling this command to the Solver, you can change them when the time is right.

Any change should be done on the planning facts and planning entities referenced by the Solver. Note that the Solver clones a Solution at will. On that change it should also notify the WorkingMemory accordingly.


Method Summary
 void doChange(SolutionDirector solutionDirector)
          Does the Move and updates the Solution and its WorkingMemory accordingly.
 

Method Detail

doChange

void doChange(SolutionDirector solutionDirector)
Does the Move and updates the Solution and its WorkingMemory accordingly. When the solution is modified, the WorkingMemory's FactHandles should be correctly notified, otherwise the score(s) calculated will be corrupted.

Parameters:
solutionDirector - never null. Contains the working Solution which contains the planning facts (and planning entities) to change. Also contains the WorkingMemory that needs to get notified of those changes.


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