code: package org.optsol.project_scheduling.mrcpsp.fct.constraints.strong;
  
  import com.google.ortools.linearsolver.MPConstraint;
  import com.google.ortools.linearsolver.MPSolver;
  import com.google.ortools.linearsolver.MPVariable;
  import org.optsol.jdecor.core.AbstractVariableManager;
  import org.optsol.project_scheduling.mrcpsp.constants.sub.IConstants_R;
  import org.optsol.project_scheduling.mrcpsp.constants.sub.IConstants_V;
  import org.optsol.project_scheduling.mrcpsp.fct.variables.DecisionVars_Fct;
  
  public class FCT_f1_FlowUpperBound_Strong_gamma<CONST extends IConstants_V & IConstants_R>
      extends FCT_f0_FlowUpperBoundGroup_Strong<CONST> {
  
    @Override
    protected void configureConstraint(
        MPConstraint constraint,
        CONST constants,
        AbstractVariableManager<MPSolver, MPVariable> variables,
        ConstraintKey index) throws Exception {
  
      int i = index.get("i");
      int j = index.get("j");
      int k = index.get("k");
  
      constraint.setUb(0.);
  
      constraint.setCoefficient(variables.getVar(DecisionVars_Fct.f, i, j, k), 1.);
      constraint.setCoefficient(variables.getVar(DecisionVars_Fct.gamma, i, j, k), -1.);
    }
  }
  