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Object Oriented Programming

TheArtOfTheMetaobjectProtocol
DatalessProgramming

Interfaces

OOBashing

ProgrammierSprachen
FirstClassFunctions
Closures
FunctionalProgramming

AlanKay
ActorModel

GenericFunctions

ObjectObsessedProgramming

OopVsAdt

• Dr. Alan Kay on the Meaning of "Object-Oriented Programming" via OOP: Alan Kay

I invented the term object oriented, and I can tell you that C++ wasn't what I had in mind. AlanKay

OOP to me means only messaging, local retention and protection and hiding of state-process, and extreme late-binding of all things. It can be done in Smalltalk and in LISP. There are possibly other systems in which this is possible, but I'm not aware of them. AlanKay

• ExtremeLateBinding

• Object-Oriented Programming versus Functional Programming

Fully object-oriented programming languages are dynamic:...

• http://tech.puredanger.com/2010/02/25/questioning-oo/
  • inheritance -> tight coupling
  • encapsulation -> via setter/getter!?
  • polymorphism -> creating a plethora of classes and interfaces

• http://www.artima.com/intv/modern2.html

So the notion of multi-paradigm programming was there from the beginning. This is why I say, "C++ supports object-oriented programming," usually adding "and it supports it better than some languages." I don't say, "C++ is an object-oriented programming language." I never had the idea that there was just one right way of writing code. From the very beginning, the notion of using different styles or paradigms was there. I usually list, C-style programming, data abstraction, object-oriented programming, and generic programming as styles directly supported by C++. BjarneStroustrup

Just a gentle reminder that I took some pains at the last OOPSLA to try to remind everyone that Smalltalk is not only NOT its syntax or the class library, it is not even about classes. I'm sorry that I long ago coined the term "objects" for this topic because it gets many people to focus on the lesser idea.

The big idea is "messaging" -- that is what the kernal of Smalltalk/Squeak is all about (and it's something that was never quite completed in our Xerox PARC phase).[1]

• http://recycledknowledge.blogspot.com/2005/06/oop-without-inheritance.html --OOP without inheritance
  • Traits
    
  
  
• http://www.laputan.org/drc/drc.html --Designing Reusable Classes
  • Object-oriented programming is as much a different way of designing programs as it is a different way of designing programming languages. This paper describes what it is like to design systems in Smalltalk.
    
  
  
• http://www.sdm.de/de/it-wissen/publikationen/2002/sdm_pub_is_broy/ --Objektorientierte Programmierung und Softwareentwicklung, JohannesSiedersleben, ManfredBroy?
  
• Wiki:AlternateObjectOrientedProgrammingView
  • Wiki:DiscussAlternateObjectOrientedProgrammingView

• What's in a Name on the misuse of lispy ideas
  • objects are about identity

Different concepts of OOP

• for the old-schoolers: sending messages to entities (like in a network or with biological cells)
  • polymorphism
• for the lazy: re-using code through inheritance
  • inheritance
  • Inherit to Be Reused, Not to Reuse
• for the secretive: encapsulation and hiding of state
  • encapsulation, AbstractDataType

Dimensions of OOP

• Namespacey Programming
  • instead of OO-Programming, why not Namespacey-Programming?
  • Why FunctionalProgramming does not like OOP (mainly polymorphism)
    • spooky action at a distance that can happen with dynamic namespaces
    • In the cases were OOP is introduced into functional programming, therefore, they will likely employ the idiom of Python and OCaml whereby the namespace is explicitly passed as a parameter to the function, rather than the conventional method whereby the function is surreptitiously evaluated in a different namespace.
• Namespaces

• OopVsAdt