Help please!!

Thread View: borland.public.cppbuilder.internet.web

7 messages

[T] Back to Threads [V] Tree View [G] Group Articles

7 total messages Started by Puri Vidal Wed, 01 Dec 2004 09:47

#1518

Author: Puri Vidal
Date: Wed, 01 Dec 2004 09:47

72 lines
3182 bytes

I do not know if this is the right place to ask this, buy I need your
help...

I am trying to develop a web service client application using C++ Builder 6.
I have the wsdl file so I try to import it using the WSDL importer, getting
the following:

namespace NS_MyService {
// Warning: Literal parameters of MyService() cannot be unwound
__interface INTERFACE_UUID("{.....}") MyServicePort : public IInvokable
{
public:
  virtual void            MyService(const ComplexType1 request,
ComplexType2& response) = 0;
};
typedef DelphiInterface<MyServicePort> _di_MyServicePort;
_di_MyServicePort GetMyServicePort(bool useWSDL=false, AnsiString addr="");
 };     // NS_MyService

Fist of all, why is the importer not able to import the complex types? To
resolve this I have defined all complex types using classes derived from
TRemotable as follows:

class ComplexType1 : public TRemotable {
private:
   AnsiString fField1;
   AnsiString fField2;
public:
__published:
   __property AnsiString Field1 = { read=fField1, write=fField1 };
   __property AnsiString Field2 = { read=fField2, write=fMessageId };
};

In the RegTypes() function I register both types
static void RegTypes()
{
   RemTypeRegistry()->RegisterXSClass( __classid(ComplexType1),
      WideString( "NS_MyService" ), WideString( "ComplexType1" ) );
   RemTypeRegistry()->RegisterXSClass( __classid(ComplexType2),
      WideString( "NS_MyService" ), WideString( "ComplexType2" ) );
...
}

And when I finally use the web service, for example, in a button click
event:

void __fastcall TForm1::Button1Click(TObject *Sender)
{
   _di_MyServicePort my_service;
   HTTPRIO1->QueryInterface( my_service);
   if ( my_service)
   {
      ComplexType1 *request = new ComplexType1();
      request->Field1 = "Data1";
      request->Field2 = "Data2";
      ComplexType2 *response = new ComplexType2();
      my_service->MyService( *request, *response );            // Here is
where I get the
      .....
      delete request;
      delete response;
   }
}

I get the following compiler error: E2459 VCL style classes must be
constructed using operator new

What am I doing wrong????

Thank you in advance for your help!!!

Puri Vidal

Re: Help please!!

#1519

Author: hans galema
Date: Wed, 01 Dec 2004 10:16

23 lines
1854 bytes

Puri Vidal wrote:
> I do not know if this is the right place to ask this, buy I need your
> help...

As the wsdl newsgroup is dead this maybe is the right place. But it
was not the right way how you used the subjec. Do not use it to cry
for help but place a relevant subject in it.

>    _di_MyServicePort my_service;

> I get the following compiler error: E2459 VCL style classes must be
> constructed using operator new

You should have told us what was on line 2459. So where the error occurred.

But I think it is on the line that I left. If that is the case you should
not instantiate on the stack as you tried but on the heap. Instantiate
your service with something like:

	ptr_di_MyServicePort = new ( my_service );

Hans.

Re: Help please!!

#1521

Author: hans galema
Date: Wed, 01 Dec 2004 10:23

15 lines
1265 bytes

hans galema wrote:

>>    _di_MyServicePort my_service;

>     ptr_di_MyServicePort = new ( my_service );

Try:

     _di_MyServicePort *my_service = new _di_MyServicePort();

or

     _di_MyServicePort *my_service = new _di_MyServicePort(this);

Hans.

Re: Help please!!

#1520

Author: Puri Vidal
Date: Wed, 01 Dec 2004 10:38

34 lines
1798 bytes

First of all, thanks for your answer!!! You are right, next time I will try
to explain the problem in the subject.

The line where I get the error is:

my_service->MyService( *request, *response );

That is, where I use the web service, so I think that it is because of the
params. But I do not know what is the problem: I create the variables using
new, and I pass the content of the pointer as the function asks for params
by value...

Thanks again!!!

Puri Vidal

"hans galema" <notused@notused.nl> escribi� en el mensaje
news:41ad9ba4@newsgroups.borland.com...
> hans galema wrote:
>
> >>    _di_MyServicePort my_servic    e;
>
> >     ptr_di_MyServicePort = new ( my_service );
>
> Try:
>
>      _di_MyServicePort *my_service = new _di_MyServicePort();
>
> or
>
>      _di_MyServicePort *my_service = new _di_MyServicePort(this);
>
> Hans.

Re: Help please!!

#1522

Author: hans galema
Date: Wed, 01 Dec 2004 11:04

19 lines
1859 bytes

Puri Vidal wrote:

> The line where I get the error is:
> 
> my_service->MyService( *request, *response );

Sorry. I now see in your original post that you indicated that line
already. My mistake.

> That is, where I use the web service, so I think that it is because of the
> params. But I do not know what is the problem: I create the variables using
> new, and I pass the content of the pointer as the function asks for params
> by value...

Try:

	my_service->MyService( request, response );

Hans.

Re: Help please!!

#1523

Author: Puri Vidal
Date: Wed, 01 Dec 2004 11:35

63 lines
2874 bytes

Thanks again!!!

As the function is declared

virtual void MyService(const ComplexType1 request, ComplexType2& response) =
0;

if I use

my_service->MyService( request, response );

I get the following errors:
Cannot convert 'ComplexType1 *' to 'ComplexType1'
Type mismatch in parameter 'request' (wanted 'const ComplexType1', got
'ComplexType1 *')
Temporary used for parameter 'response' in call to
'MyServicePort::MyService(const ComplexType1, ComplexType2 &)'
Cannot initialize 'ComplexType2 &' with 'ComplexType2 *'
Type mismatch in parameter 'response' (wanted 'const ComplexType2 &', got
'ComplexType1 *')

And if I try to declare the parameter variables without using pointers:
ComplexType1 request;
or
ComplexType1 request();
or
ComplexType1 request = ComplexType();

I get in that line: VCL stype classes must be constructed using operator
new.

Perhaps the solution is changing the function declaration. The problem is
that I think I cannot change it because it was generated by te WSDL
Importer...

Thanks again for your help.

Puri Vidal

"hans galema" <notused@notused.nl> escribi� en el mensaje
news:41ada558@newsgroups.borland.com...
> Puri Vidal wrote:
>
> > The line where I get the error is:
> >
> > my_service->MyService( *request, *response );
>
> Sorry. I now see in your original post that you indicated that line
> already. My mistake.
>
> > That is, where I use the web service, so I think that it is because of
the
> > params. But I do not know what is the problem: I create the variables
using
> > new, and I pass the content of the pointer as the function asks for
params
> > by value...
>
> Try:
>
> my_service->MyService( request, response );
>
> Hans.

Re: Help please!!

#1524

Author: Saulo I. Regis
Date: Wed, 01 Dec 2004 13:39

7 lines
1397 bytes

> my_service->MyService( request, response );

and what about ?

my_service->MyService( &request, &response );

Saulo

Thread Navigation

This is a paginated view of messages in the thread with full content displayed inline.

Messages are displayed in chronological order, with the original post highlighted in green.

Use pagination controls to navigate through all messages in large threads.

Back to All Threads