The XSD group type <xsd:group> is used to create a reusable content model group. This is similar in concept to the creation of a standalone type and is handled in the C or C++ language mapping as such. A group declaration is translated into a C type or C++ class definition. This type definition is then used in places where the group is referenced.
The general mapping is as follows:
XSD type:
<xsd:group name="TypeName">
XSD content group definition ..
</xsd:group>
Generated C code:
typedef struct TypeName {
group type definition..
} TypeName;
Generated C++ code:
class TypeName : public OSRTBaseType {
group type definition..
} ;