code: @Override
      public Predicate lt(Expression<? extends Number> arg0, Number arg1)
      {
          return new ComparisonPredicate(arg0, arg1, ConditionalOperator.LT);
      }
docs: /*
  (non-Javadoc)
  
  @see
  javax.persistence.criteria.CriteriaBuilder#lt(javax.persistence.criteria
  .Expression, java.lang.Number)