BorlandTalk.com Borland discussion newsgroups   Archives   FAQ   Search   Memberlist   Usergroups   Register   Profile   Log in to check your private messages   Log in  RAD and COP Goto page 1, 2  Next          BorlandTalk.com Forum Index -> C++ Builder (Non-Technical) View previous topic :: View next topic   Author Message fwang11 Guest Posted: Sat Oct 16, 2004 4:07 pm    Post subject: RAD and COP Is RAD same thing as COP (Component Oriented Programming)? Back to top OBones Guest Posted: Sat Oct 16, 2004 5:15 pm    Post subject: Re: RAD and COP fwang11 wrote: Quote: Is RAD same thing as COP (Component Oriented Programming)? I'd say they are similar, but COP doesn't mean Visible components, this may well be just using standard "blocks" called components, that you put together to build your application. Back to top Colin B Maharaj Guest Posted: Sun Oct 17, 2004 11:36 pm    Post subject: Re: RAD and COP Remember also OBones that the VCL contain NON-Visual components as well. OBones wrote: Quote: fwang11 wrote: Is RAD same thing as COP (Component Oriented Programming)? I'd say they are similar, but COP doesn't mean Visible components, this may well be just using standard "blocks" called components, that you put together to build your application. Back to top Colin B Maharaj Guest Posted: Sun Oct 17, 2004 11:36 pm    Post subject: Re: RAD and COP Remember also OBones that the VCL contain NON-Visual components as well. OBones wrote: Quote: fwang11 wrote: Is RAD same thing as COP (Component Oriented Programming)? I'd say they are similar, but COP doesn't mean Visible components, this may well be just using standard "blocks" called components, that you put together to build your application. Back to top OBones Guest Posted: Mon Oct 18, 2004 7:06 am    Post subject: Re: RAD and COP Colin B Maharaj wrote: Quote: Remember also OBones that the VCL contain NON-Visual components as well. I know, I'm writing some of them (JVCL) <g> This is also why I have trouble explaining the difference/similarities between RAD and COP. Back to top fwang11 Guest Posted: Mon Oct 18, 2004 8:01 am    Post subject: Re: RAD and COP OBones <obones_grere_ (AT) _gregr_altern (DOT) org> wrote: Quote: Colin B Maharaj wrote: Remember also OBones that the VCL contain NON-Visual components as well. I know, I'm writing some of them (JVCL) This is also why I have trouble explaining the difference/similarities between RAD and COP. RAD is certainly beyond OOP and need COP. For example, event is not an OOP concept. How could a Button object send ButtonClick() event message to a Form object? It is not an OOP concept. Back to top Peter Agricola Guest Posted: Mon Oct 18, 2004 3:39 pm    Post subject: Re: RAD and COP "fwang11" wrote: Quote: RAD is certainly beyond OOP and need COP. For example, event is not an OOP concept. Nor a COP concept. Quote: How could a Button object send ButtonClick() event message to a Form object? It is not an OOP concept. And how does a Component do that? Remember the Win32 API is written in plain C. Events are not exclusive for components. This is from the BCB help, The TComponent Branch: "TComponent is the common ancestor of all VCL components. Components are objects that you can manipulate on forms at design time. Despite its name, the VCL consists mostly of nonvisual objects." Components are Objects. Peter. Back to top Micha Nelissen Guest Posted: Mon Oct 18, 2004 4:06 pm    Post subject: Re: RAD and COP Peter Agricola wrote: Quote: This is from the BCB help, The TComponent Branch: "TComponent is the common ancestor of all VCL components. Components are objects that you can manipulate on forms at design time. Despite its name, the VCL consists mostly of nonvisual objects." Components are Objects. For the VCL, or in general? I remember a quote saying: "Object oriented programming is neither necessary nor sufficient for component oriented programming." Don't know who it's from, TBH. Micha Back to top Peter Agricola Guest Posted: Mon Oct 18, 2004 7:06 pm    Post subject: Re: RAD and COP "Micha Nelissen" wrote: Quote: Components are Objects. For the VCL, or in general? I remember a quote saying: "Object oriented programming is neither necessary nor sufficient for component oriented programming." Don't know who it's from, TBH. Yes, for the VCL. Objects only have meaning for the compiler. IIRC the first C++ compilers generated C code wich was compiled to asm or machine code. Maybe some compilers still do. Peter Back to top mr_organic Guest Posted: Mon Oct 18, 2004 8:05 pm    Post subject: Re: RAD and COP "Peter Agricola" <please (AT) no-spam (DOT) com> wrote in news:4174141b (AT) newsgroups (DOT) borland.com: Quote: IIRC the first C++ compilers generated C code wich was compiled to asm or machine code. Maybe some compilers still do. Peter That's true. The first C++ compiler I ever used was the AT&T CFront compiler, and it was basically a preprocessor that parsed C++ code and spit out C, which was then compiled into object code. HP and SUN were the same (and still are, unless they've changed dramatically in the last few years). mr_organic Back to top fwang11 Guest Posted: Tue Oct 19, 2004 3:48 am    Post subject: Re: RAD and COP "Peter Agricola" <please (AT) no-spam (DOT) com> wrote: Quote: "fwang11" wrote: RAD is certainly beyond OOP and need COP. For example, event is not an OOP concept. Nor a COP concept. How could a Button object send ButtonClick() event message to a Form object? It is not an OOP concept. And how does a Component do that? Remember the Win32 API is written in plain C. Events are not exclusive for components. In C#, event is a member of class, event handler use delegate type. Is this OOP or COP? What is differnce between OOP and COP? Quote: This is from the BCB help, The TComponent Branch: "TComponent is the common ancestor of all VCL components. Components are objects that you can manipulate on forms at design time. Despite its name, the VCL consists mostly of nonvisual objects." Components are Objects. So, COP is OOP then? Back to top Peter Agricola Guest Posted: Tue Oct 19, 2004 6:43 am    Post subject: Re: RAD and COP "fwang11" wrote: Quote: In C#, event is a member of class, event handler use delegate type. Is this OOP or COP? None of them specific. It is a old programming paradigm known as a callback function. You assign an address of a function, a function pointer, to a given variable. When the code reaches some point the function in the variable is called. this is from MSDN: "A delegate declaration defines a reference type that can be used to encapsulate a method with a specific signature. A delegate instance encapsulates a static or an instance method. Delegates are roughly similar to function pointers in C++; however, delegates are type-safe and secure." Quote: What is differnce between OOP and COP? So, COP is OOP then? The differences seem very academic to me. I would say OOP is a programming and design paradigm where COP is only a design paradigm, most of the time, but not necessarily, implemented using OOP programming paradigm. Peter Back to top Hendrik Schober Guest Posted: Tue Oct 19, 2004 9:22 am    Post subject: Re: RAD and COP Peter Agricola <please (AT) no-spam (DOT) com> wrote: Quote: [...] IIRC the first C++ compilers generated C code wich was compiled to asm or machine code. Maybe some compilers still do. Comeau (probably the most conformant C++ compiler iut there) does this. Quote: Peter Schobi -- [email]SpamTrap (AT) gmx (DOT) de[/email] is never read I'm Schobi at suespammers dot org "The presence of those seeking the truth is infinitely to be prefered to those thinking they've found it." Terry Pratchett Back to top Marcelo R. Lopez, Jr. Guest Posted: Tue Oct 19, 2004 7:08 pm    Post subject: Re: RAD and COP Hendrik Schober wrote: Quote: Peter Agricola <please (AT) no-spam (DOT) com> wrote: [...] IIRC the first C++ compilers generated C code wich was compiled to asm or machine code. Maybe some compilers still do. Comeau (probably the most conformant C++ compiler iut there) does this. Peter Schobi And it will probably remain the most compliant SPECIFICALLY because of that. Back to top Marcelo R. Lopez, Jr. Guest Posted: Tue Oct 19, 2004 7:12 pm    Post subject: Re: RAD and COP Peter Agricola wrote: Quote: What is differnce between OOP and COP? So, COP is OOP then? The differences seem very academic to me. I would say OOP is a programming and design paradigm where COP is only a design paradigm, most of the time, but not necessarily, implemented using OOP programming paradigm. Peter This I gotta hear....is what I hear you saying is that COP is essentially a way of OOD ? Because I can design splendid code in C with structures, where the components are the structures and the functions are the operators (or methods, if you want to use C++ - speak ) that manipulate these structures....but I don't consider this as employing OOD or OOP. 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