[Choco-users] choco.bool.BinConjunction casting problem

[Fatma C. <cel...@gm...>]

Hello all,

For a long time I am struggling with a problem and unfortunatelly still
could not find any solution :( Please write me if you have any ideal.

Problem description: Scheduliing some tasks according to some criterias.(see
below)

int[] periods_data = new int[]{20,20,10};
IntDomainVar[] starts = pb.makeBoundIntVarArray("start", 4, 0, 20);
IntDomainVar[] starts_task = pb.makeBoundIntVarArray("start task", 4, 0,
20);

int t1 = 0;
for (int i = 0; i < 3; i++) {
     for (int j = 0; j < (20/periods_data[i]); j++) {
          Constraint[] implor = new Constraint[4];
          int t2 = 0;
          for (int i1 = 0; i1 < 3; i1++) {
             for (int j1 = 0; j1 < (20/periods_data[i1]); j1++) {

                 Constraint[] impl = new Constraint[20];
                  for (int m = 0; m < 20; m++) {
                      impl[m]= pb.ifThen(pb.and(pb.leq(starts[t2],m),
                                                             pb.geq
(starts[t1],m)),pb.eq(gap[m], 0));
                  }
                  implor[t2] = pb.ifThen(pb.and(pb.and(impl),

                                                  pb.distanceLT(starts[t1],
starts[t2], jitters_data[i]+1)),
                  pb.eq(starts_task[t1], starts[t2]));
                 t2++;
            }
         }
         pb.post(pb.or(implor));
         t1++;
      }
}

implor[t2] line gives " choco.integer.constraints.DistanceXYC cannot be cast
to choco.bool.BinConjunction" error.

You have any idea, why? And how can I give the same constraint in a
different way?

I appreciate your help.

cheers,
FAtma