How to force gSOAP to generate vector of objects (not pointers!) for any XSD style?

Question

I've been playing with gSOAP XML Data Binding and noticed that class generation varies depending on the XML schema style. Let me show you an example:

library.xml:

<?xml version="1.0" encoding="UTF-8"?>
<library>
    <book isbn="0132350882"/>
    <book isbn="020161622X"/>
    <book isbn="0201633612"/>
</library>

Case 1: XML schema written in the Russian doll style

library.xsd (Russian doll style - generated by Visual Studio 2010 from XML above):

<?xml version="1.0" encoding="utf-8"?>
<xs:schema attributeFormDefault="unqualified" elementFormDefault="qualified" xmlns:xs="http://www.w3.org/2001/XMLSchema">
  <xs:element name="library">
    <xs:complexType>
      <xs:sequence>
        <xs:element maxOccurs="unbounded" name="book">
          <xs:complexType>
            <xs:attribute name="isbn" type="xs:string" use="required" />
          </xs:complexType>
        </xs:element>
      </xs:sequence>
    </xs:complexType>
  </xs:element>
</xs:schema>

I am using the following sequence in order to get proxy files (header and source):

c:\test\gSOAP_Test1>wsdl2h.exe -t "c:\tools\gsoap_2.8.6\gsoap-2.8\gsoap\typemap.dat" Library.xsd

c:\test\gSOAP_Test1>soapcpp2.exe -I "c:\tools\gsoap_2.8.6\gsoap-2.8\gsoap\import" Library.h

For Russian doll styled XSD gSOAP generates classes with following design:

soapStub.h:

class SOAP_CMAC _ns1__library_book
{
public:
    std::string isbn;   /* required attribute */
    ...
};

class SOAP_CMAC _ns1__library
{
public:
    std::vector<_ns1__library_book >book;   /* required element of type ns1:library-book */
    ...
};

Note that _ns1__library's member book is implemented as vector of _ns1__library_book objects. But this is not the case when we provide schema written in other styles where it is implemented as vector of pointers.

Case 2: XML schema written in the Venetian blind style

library.xsd (Venetian blind):

<?xml version="1.0" encoding="utf-8"?>
<xs:schema attributeFormDefault="unqualified" elementFormDefault="qualified" xmlns:xs="http://www.w3.org/2001/XMLSchema">

  <xs:complexType name="book_t">
    <xs:attribute name="isbn" type="xs:string" use="required"/>
  </xs:complexType>

  <xs:complexType name="library_t">
    <xs:sequence>
      <xs:element name="book" type="book_t" minOccurs="1" maxOccurs="unbounded"/>
    </xs:sequence>
  </xs:complexType>

  <xs:element name="library" type="library_t"/>
</xs:schema>

soapStub.h:

class SOAP_CMAC ns1__book_USCOREt
{
public:
    std::string isbn;   /* required attribute */
        ...
};
#endif

class SOAP_CMAC ns1__library_USCOREt
{
public:
    std::vector<ns1__book_USCOREt * >book;  /* required element of type ns1:book_t */
    ...
};

Case 3: XML schema written in the Sliced salami style

library.xsd (Sliced salami):

<?xml version="1.0" encoding="utf-8"?>
<xs:schema attributeFormDefault="unqualified" elementFormDefault="qualified" xmlns:xs="http://www.w3.org/2001/XMLSchema">

  <xs:element name="book">
    <xs:complexType>
      <xs:attribute name="isbn" type="xs:string" use="required"/>
    </xs:complexType>
  </xs:element>

  <xs:element name="library">
    <xs:complexType>
      <xs:sequence>
        <xs:element ref="book" minOccurs="1" maxOccurs="unbounded"/>
      </xs:sequence>
    </xs:complexType>
  </xs:element>

</xs:schema>

soapStub.h:

class SOAP_CMAC _ns1__book
{
public:
    std::string isbn;   /* required attribute */
    ...
};
#endif

class SOAP_CMAC _ns1__library
{
public:
    std::vector<_ns1__book * >ns1__book;    /* required element of type ns1:book */
    ...
}

For the XML provided, I prefer _ns1__library's book collections member to be vector of objects - not a vector of pointers. I want to create instance of _ns1__book on the stack and simply pass it (by reference) to vector's push_back(). This is possible only for Russian doll-styled schemas.

How to force gSOAP to generate collection of elements member as vector of objects for any schema style? Shall some special arguments be provided to wsdl2h.exe and/or soapcpp2.exe? Shall XML schema document contain any additional elements?

How to force gSOAP to generate vector of objects (not pointers!) for any XSD style?

0 Answers0