                                                                      Individual Field Constraints                                                                     
     Field name Type Allowed         Min Allowed         Max Allowed Sign Allowed Nulls Allowed Duplicates Allowed Values Allowed                                                             Regular Expressions
             id       int                      1                   5   positive         0               no                                                                                                       
    stringField    string                      3                   8                    0                                 "one"                                                                      "^([a-z]+)$"
                                                                                                                     "repeater"                                                                                  
                                                                                                                        "three"                                                                                  
                                                                                                                          "two"                                                                                  
       intField       int                      1                  23   positive         1               no                                                                                                       
      realField      real                    1.0              1000.0   positive         1                                                                                                                        
      boolField      bool                  false                true                    1                                                                                                                        
      dateField      date    2011-01-01T01:11:11 2055-05-05T05:55:55                    1                                                                                                                        
stringDateField    string                     19                  19                    1               no                        "^([0-9]{4})\\-([0-9]{2})\\-([0-9]{2})([A-Z])([0-9]{2}):([0-9]{2}):([0-9]{2})$"