private ConstraintsFactory() {}
public Constraint buildConstraint(ConstraintConfiguration config) {
if (NotNullConstraint.NAME.equals(config.getConstraintName())) {
return new NotNullConstraint();
} else if (IntegerConstraint.NAME.equals(config.getConstraintName())) {
return new IntegerConstraint();
} else if (RangeConstraint.NAME.equals(config.getConstraintName())) {
return new RangeConstraint();
} else if (NotMatchesConstraint.NAME.equals(config.getConstraintName())) {