impl dv dtd impl dv InvalidDatatypeValueException impl dv ValidationContext XML11Char xml11idrefdatatypevalidator idrefdatatypevalidator xml11idrefdatatypevalidator validate content validationcontext context invaliddatatypevalueexception context.usenamespaces xml11char.isxml11validncname content invaliddatatypevalueexception content xml11char.isxml11validname content invaliddatatypevalueexception content context.addidref content