public Linear(Var var, String oper, int value) {
super(var.getProblem(), name);
IntExp cVar = (IntExp) var.getImpl();
Problem problem = (Problem) var.getProblem();
problem.defineConstraintImpl(this, cVar, oper, value);
}
public Linear(int[] values, Var[] vars, String oper, int value) {
super(vars[0].getProblem(), name);
Problem problem = (Problem) vars[0].getProblem();