/**
  * Constraints a property to be less than a specified other property
  *
  * @param propertyName The property
  * @param otherPropertyName The other property
  * @return This criteria
  */
 public Criteria ltProperty(String propertyName, String otherPropertyName) {
   validatePropertyName(propertyName, "ltProperty");
   validatePropertyName(otherPropertyName, "ltProperty");
   addToCriteria(Restrictions.ltProperty(propertyName, otherPropertyName));
   return this;
 }