Returning a complex type

Remoting SDK
1

Hello, I have a question.

It is correct this implementation for a complex type named tcliente

I am doing some testing with complex types, and I want to understand it all before doing it in production.

I have this type:

tcliente = class(TROComplexType)
  private
    fnombre: string;
    fapellido: String;
    fsueldo: double;
  published
    property nombre :string read fnombre write fnombre;
    property apellido : String read fapellido write fapellido;
    property sueldo: double read fsueldo write fsueldo;
  end;

and this is the implementation for one test function.

    [ROServiceMethod]
    function saludacliente(cliente:string):tcliente;

function TTestService.saludacliente(cliente: string): tcliente;
var resp:tcliente;
begin
  resp:=tcliente.Create;
  resp.nombre:='Hola '+cliente+' nombre';
  resp.apellido:='Adios '+cliente+' apellido';
  resp.sueldo:=5000;
  Result:=resp;
  //resp.Free;
end;

If i tried resp.free i got exceptions when calling the function; if not, it runs correctly.

Is it okay not to do resp.free?

There is going to be a memory leak in the server if you don’t do it?

If I have to do it, what is the proper way?

As always, thanks for your advice.

2

Hi,

I suggest to read the Remote Object Allocation and Serialization (Delphi) article.

in brief:

Here is the rule of thumb: Always free the memory on the client and never free it on the server.

3

Thanks!
I will follow your advice.