Create/Delete a TOraObject in C++

[Morelli]

Hi Folks,

I'm using C++ and not Delphi.
And i get a bit confused about what is the correct manner to create and destroy a TOraObject for example.

If I create an TOraObject with new. I get a pointer to a object-instance.
But do I have to call TOraObject->AllocObject (...) too? If yes, why?

And do I have to call TOraObject->FreeObject() or just delete?

So far I used to do it like this:

Code: Select all

TOraObject* sdoGeometry = new TOraObject (0);
sdoGeometry->AllocObject (query->Session->OCISvcCtx, "MDSYS.SDO_GEOMETRY");
...
sdoGeometry->FreeObject (true);
delete sdoGeometry;

Is this correct in C++?

Thanks for your help!

[AlexP]

Hello,

After calling the Create method, you should also call the AllocObject method, in which the OCIObjectNew Api function will be called. To destroy an object, use the the Free method.

[Morelli]

Hi,

What "Create" and "Free" Method do you mean? These functions do not exist in C++!
Do you mean CreateObject and FreeObject?

In your ODAC-Help there is a note (TOraObject.CreateObject Method):

Note: This method is obsolete, so it's better to use the AllocObject method instead.

And you say:

After calling the Create method, you should also call the AllocObject method

So what is correct now? Please explain

And what I really not understand is why do I have to call c++ new and AllocObject?

[AlexP]

The Create method means call of constructorю For С++ Builder, it is call of the New method. After creating an object, you should call the AllocObject method.