Encoding Methods for Fundamental Types

Table 1. Encoding methods
Datatype	Encoded Width	Encoding method
SVR_BLOB	Variable	Converted directly to a padded string
SVR_BOOLEAN	1	false = `0`, true = `1`
SVR_CHAR	1	Converted directly to a 1 character string
SVR_DATE	8	yyyyMMdd
SVR_DATETIME	15	yyyyMMddThhmmss (ISO 8601 standard)
SVR_DOUBLE	25	Numeric
SVR_FLOAT	16	Numeric
SVR_INT8	1	Numeric
SVR_INT16	6	Numeric
SVR_INT32	11	Numeric
SVR_INT64	21	Numeric
SVR_MONEY	25	Numeric
SVR_STRING	Variable	converted directly to a padded string
SVR_UNBOUNDED_STRING	N/A	Not natively supported

SVR_BLOB and SVR_STRING are variable in that the length of the encoded message is equal to the length specified for that type in the model. If the data in the string is less than the maximum amount allowed, space padding is appended to the data in the message to bring it up to the maximum size.
SVR_UNBOUNDED_STRING is not natively supported because the string length is not known at generate time and is required for creating fixed length messages. However it is possible for the developer to implement a custom mapper to handle unbounded strings.
Numeric datatypes are converted to right-justified human-readable strings. For example: 45678, -23123, 1000003.14159, 1.4E-45.