code: private static void defineField(Map<String, FieldType> container, String name, FieldType type, String alias)
     {
        container.put(name, type);
        if (alias != null)
        {
           ALIASES.put(type, alias);
        }
     }
docs: Configure the mapping between a database column and a field, including definition of
  an alias.
  
  @param container column to field map
  @param name column name
  @param type field type
  @param alias field alias