Gets or creates a pre-defined type.
This is just a short-cut of
createDatatypeBuilder(typeLocalName).createDatatype();
The callee should throw a DatatypeException in case of an error.
A non-null valid datatype object.
Creates a new instance of DatatypeBuilder.
The callee should throw a DatatypeException in case of an error.
Parameters: baseTypeLocalName - The local name of the base type.A non-null valid datatype object.