ETSI's Bug Tracker - Part 09: Using XML with TTCN-3
<xsd:element name="optionals_in_optional">
<xsd:complexType>
<xsd:sequence minOccurs="0">
<xsd:element name="elem1" type="xsd:string" minOccurs="0"/>
<xsd:element name="elem2" type="xsd:integer" minOccurs="0"/>
<xsd:element name="elem3" type="xsd:decimal" minOccurs="0"/>
<xsd:element name="elem4" type="xsd:dateTime" minOccurs="0"/>
<xsd:element name="elem5" type="xsd:duration" minOccurs="0"/>
</xsd:sequence>
</xsd:complexType>
</xsd:element>
will be translated to TTCN-3 as:
type record Optionals_in_optional
{
record {
XSD.String elem1 optional,
XSD.Integer elem2 optional,
XSD.Decimal elem3 optional,
XSD.DateTime elem4 optional,
XSD.Duration elem5 optional
} sequence optional
}
with {
variant "name as uncapitalized";
variant "element";
variant (sequence) "untagged";
};
where the 'sequence' name of the record shall not be present in the encoded XML value.
This is not the problem at encoding, both
template Optionals_in_optional t_optionals1 := { sequence := omit }
and
template Optionals_in_optional t_optionals2 := {
sequence := {
elem1 := omit,
elem2 := omit,
elem3 := omit,
elem4 := omit,
elem5 := omit
}
}
will be encoded as an empty <optionals_in_optional></optionals_in_optional> element.
However, it is NOT SPECIFIED, how the above incoming element shall be decoded into TTCN-3. Therefore the user needs to define a template list containing both templates above to be sure that the incoming empty element will match. This is cumbersome and superflouos.
Proposed solution: it is proposed to specify that this specific case shall be decoded to the value { sequence := omit }; this is the shortest and thus more user friendly solution.
Note: it could cause backward incompatibility if code is written to tool-specific decoding, and causes no backward compatibility for code written to ba standard-compliant.
CR7210_resolution_v1.docx (63,553) 29-10-2015 11:54http://oldforge.etsi.org/mantis/file_download.php?file_id=3332&type=bug
CR7210_resolution_v2.docx (65,389) 04-11-2015 11:11http://oldforge.etsi.org/mantis/file_download.php?file_id=3357&type=bug