code: package org.optsol.project_scheduling.mrcpsp.see.constraints.rsee;
  
  import com.google.ortools.linearsolver.MPConstraint;
  import com.google.ortools.linearsolver.MPSolver;
  import com.google.ortools.linearsolver.MPVariable;
  import java.util.Collection;
  import java.util.HashSet;
  import java.util.Set;
  import org.optsol.jdecor.core.AbstractVariableManager;
  import org.optsol.jdecor.ortools.AbstractOrtoolsConstraintManager;
  import org.optsol.project_scheduling.mrcpsp.constants.shared.events.IConstants_E;
  import org.optsol.project_scheduling.mrcpsp.constants.sub.IConstants_A;
  import org.optsol.project_scheduling.mrcpsp.constants.sub.IConstants_B_k;
  import org.optsol.project_scheduling.mrcpsp.constants.sub.IConstants_M_i;
  import org.optsol.project_scheduling.mrcpsp.constants.sub.IConstants_R;
  import org.optsol.project_scheduling.mrcpsp.constants.sub.IConstants_b_imk;
  import org.optsol.project_scheduling.mrcpsp.see.variables.DecisionVars_Rsee;
  
  public class RSEE_k_RenewableResourceCapacity<CONST
      extends IConstants_A & IConstants_E & IConstants_M_i & IConstants_R & IConstants_B_k & IConstants_b_imk>
      extends AbstractOrtoolsConstraintManager<CONST> {
  
    public RSEE_k_RenewableResourceCapacity() {
      super("e", "k");
    }
  
    @Override
    protected Collection<ConstraintKey> createKeys(CONST constants) {
      Set<ConstraintKey> keys = new HashSet<>();
      for (int e : constants.get_E()) {
        if (e != constants.get_card_A()) {
          for (int k : constants.get_R()) {
            keys.add(new ConstraintKey(e, k));
          }
        }
      }
      return keys;
    }
  
    @Override
    protected void configureConstraint(MPConstraint constraint, CONST constants,
        AbstractVariableManager<MPSolver, MPVariable> variables, ConstraintKey index)
        throws Exception {
  
      int e = index.get("e");
      int k = index.get("k");
  
      constraint.setUb(constants.get_B_k(k));
  
      for (int i : constants.get_A()) {
        for (int m : constants.get_M_i(i)) {
          constraint.setCoefficient(
              variables.getVar(DecisionVars_Rsee.x_tilde, i, m, e),
              constants.get_b_imk(i, m, k));
  
          if (e != 0) {
            constraint.setCoefficient(
                variables.getVar(DecisionVars_Rsee.y_tilde, i, m, e),
                -constants.get_b_imk(i, m, k));
          }
        }
      }
    }
  }