| DatatypeConstants | 
           Utility class to contain basic Datatype values as constants.  | 
      
| DatatypeConstants.Field | 
          Type-safe enum class that represents six fields
 of the Duration class. 
          
    
         | 
      
| DatatypeFactory | 
           Factory that creates new   | 
      
| Duration | 
           Immutable representation of a time span as defined in the W3C XML Schema 1.0 specification.  | 
      
| XMLGregorianCalendar | 
           Representation for W3C XML Schema 1.0 date/time datatypes.  | 
      
| DatatypeConfigurationException | 
           Indicates a serious configuration error.  |