One of the four pillars of object-oriented programming (OOP), inheritance establishes a "is-a" relationship between objects. For example, a "Cat" object can be treated in code as any other "Animal" object because a "Cat" is-a "Animal".
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1answer
77 views
Simple JavaScript inheritance
I'd like to know what you think about my implementation of inheritance. It's pretty small and intuitive I think, but I don't know if there are any drawbacks.
I really want to keep it as simple as ...
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2answers
94 views
Encapsulated text-based RPG using a randomized combat system
For my rags-to-riches submission, I've decided to improve this code:
Text-based RPG game using classes
However, I've decided to start off with something different. The original code is more ...
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0answers
92 views
Many interfaces and lots of inheritance vs few interfaces and less inheritance?
I have a Visual Studio Solution which has a bunch of Projects in it. One of these projects is called "Services" and is basically the junction point between all remaining projects. When I built it ...
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0answers
16 views
Namespace handling on nodejs and inheritance managing
It should solve the following issues:
Handle namespaces;
Be a class factory from Pojos
Be a object factory
Create a class with inheritance capabilities from a POJO using john resig inheritance ...
4
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0answers
94 views
Is this pass-by-reference of a shared_ptr correct?
I'm writing a scene graph library in C++ and I'm currently designing the parent-child relations. I decided to use shared pointers for parent-to-child-relations and weak pointers for child-to-parent ...
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2answers
70 views
When should I actually derive from my interface?
Context:
I am working on an XNA project, and since procedural generation is likely to be used, I wanted to eventually create a helper class to work with data to facilitate that.
Design Goal:
...
2
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1answer
32 views
Using a decorator to apply an inherited method to all child objects of the inherited type
I wanted to share this and get some feedback. My goal was to be able to have an object with methods:
...
5
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3answers
57 views
Cons of declaring derived class type member in another derived class (both of which share the same base class)
I'd like some input on the way I've structured some things in a side-project I'm working on.
I declare an abstract class, CelestialObj, which will contain the ...
4
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0answers
52 views
Static Multilevel Inheritance with CRTP (Fast Intrusive Pointers)
I wanted to have a way to be able to static_cast to the proper derived type pointer of a base class to simulate a virtual call. Here the virtual call is for a ...
2
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1answer
42 views
JavaScript mixins, extending and super methods
I've read a lot of stuff about mixins, inheritance and such, and in the end I came up with this solution for extending a class with multiple mixins. I haven't seen this anywhere else...
Is this a ...
2
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0answers
51 views
Implement.js JavaScript module pattern
I have been playing with a new JavaScript module pattern to see what I can come up with. I think it's quite powerful and wanted to know if it is something people would find useful?
I'm looking for ...
2
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3answers
75 views
4
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1answer
99 views
Merging with different modules
We have an action merge for two projects. In the projects we have different modules like Feed, Files, Post etc....
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2answers
86 views
Is my code overdesigned? Does it rely too heavily on interfaces?
Context:
I am using XNA to create a simple game / learning project.
Problem:
I have three interfaces, each with a different purpose in mind. However, the way I use them, as well as their ...
3
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1answer
8 views
Better solution than inheritance with “busy” __init__
The goal was to create a node object with input and output ports for a data flow system. I approached the problem using inheritance as I couldn't think in an easy way to do it with composition.
My ...
6
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4answers
472 views
Basic Postfix Calculator in Java
I recently posted some sample code that I was providing students with and got great feedback so figured I post another one of the examples I will be providing students with. (See Simple Example of an ...
6
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5answers
141 views
Initializing JTree
I have a class called Piece, and many many subclasses of Piece. I want to add an instance of every single subclass of ...
5
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1answer
42 views
Having children call parent's public events with data generated from a protected event
I don't know that my title describes the code I want reviewed. Hopefully the code is explanatory.
I have an abstract parent class with two children. The parent listens to some hardware notifications ...
1
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2answers
63 views
How to write factory classes or functions in JavaScript? [closed]
I find that in Javascript there are many methods of creating an object so what would be the appropriate approach for constructing an object and why.
...
2
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1answer
65 views
Can this architecture of base + derived classes be coded more efficient? [closed]
I've got some architecture in my code similar to this. It is about the Construct method in the base class in the example below. This method contains the logic for constructing a building, which is the ...
1
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1answer
35 views
Simple inheritance with functions in subclasses [closed]
It seems like there are many ways implementing inheritance in JavaScript. Which version do you prefer or would you suggest another solution?
The code should run in IE8+ so my first version would not ...
2
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0answers
41 views
Forcing base class functions to be used from the base class [closed]
The answer to this question is probably "W-what!? What the !@#$-- Stop!! That's a terrible idea!", but I would like to hear your thoughts...
I have two classes and one inherits from the other.
...
2
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3answers
77 views
Raising error if method not overridden by sub-class
Background
I have a base (only 2 classes inherit from it, and only from it) abstract (meaning I don't want it to be used directly) class that implements some common functionality.
Some of it depends ...
10
votes
1answer
82 views
DataLayer Interfaces Genericized
I have some concerns on my refactoring for the data layer in my current Project. Just for a small info, I am currently building a CRM as "training JEE application". But enough of talk, let's talk ...
6
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2answers
231 views
Class for printing class hierarchy as text
I'm coding a little class hierarchy printing tool for easy show hierarchies of java classes.
This is my current code:
...
5
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1answer
133 views
Prototype inheritance with Knockout observables
I'm trying to write a JavaScript library to allow inheritance with knockout.
The fundamental problem when implementing inheritance in Knockout is that each Knockout observable is its own instance, ...
2
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3answers
87 views
Color vision checkup
I have this old project I wrote years ago and it's all classes and methods all over the place. I am trying to learn/understand how I can apply a more OOP principle. It is very large and can't paste ...
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2answers
92 views
Using properties efficiently in inheritance
I have a class called Mailer which has some properties like this
...
4
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1answer
47 views
dnaof() - inheritance made easy, my own make inheritance tool
https://github.com/exebook/dnaof
I created this simple inheritance tool for JavaScript, could any one with deep knowledge in JavaScript prototyped inheritance review it?
Here is the library itself:
...
14
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4answers
761 views
Modelling a Call Center
This is the requirement I have (from the book: Cracking the Coding Interview)
Imagine you have a call center with three levels of employees: fresher, technical lead (TL), and product manager (PM). ...
7
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6answers
598 views
Fluent interface and polymorphism
EDIT: For further improvements see the related question: Variadic templates and pointers to member functions to achieve a named-parameters interface in C++
I would like to improve the interfaces of ...
5
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1answer
87 views
Improving XNA's default project template
I hope this isn't getting annoying, but I've asked a lot of questions about improving my game lately:
How can I improve my game project design?
Using the observer pattern with collision detection
Is ...
1
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0answers
28 views
Inheritance and setting up for an API request
I am setting up a class to be used for an API request (with JavaScriptSerializer)
I am using it to send a complaint to their ticketing systems. So for example I send Title, Description, Custom_Fields
...
5
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2answers
74 views
Avoiding casts in abstract types
I asked this question on Stack Overflow and in the comments someone had this to say.
In a proper design, you should almost never have to do a dynamic_cast, even if it's hidden inside some nice ...
5
votes
1answer
87 views
A variant of state pattern + C++ template FSM without state creation/destruction penalty
This is a variant of the solution posted here, without state creation/destruction penalty.
Note that my comment in the original question about the simplification provided by C++11's inherited ...
1
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1answer
35 views
Javascript subclasses instantiating superclass (check code)
I have a test which looks like this:
create a base class Human
Human class needs to have a method Talk
the Human class needs to have to descendant class Man and Woman
both Man and Woman should have ...
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2answers
98 views
Classical inheritance in JavaScript
I've been playing around with inheritance in JavaScript and I'm wondering if there are any drawbacks to this method which tries to emulate classical inheritance from C-based languages.
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1answer
490 views
Case class design in Scala
In the Java world while writing the data access layer (for CRUD) and the model layer, I have done something like this:
...
7
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1answer
131 views
Moving method from derived class to base
I've some classes (Derived1, Derived2, etc.) derived from class Base. All of derived classes ...
5
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3answers
116 views
Object inheritance
I have written some example code to test object inheritance, but I'm not sure if it's really the best way for an object to inherit another's functions (like Java's ...
8
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3answers
326 views
Why would I want to always have to explicitly call a “base” method if I just want to use base functionality?
I recently worked with an architect who structured his base class like this:
...
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1answer
81 views
Coding convention when using differential inheritance
Ever since reading Crockford's "Good Parts" and Johansen's TDD book, I have wanted to use more of the differential inheritance pattern in my coding at work (as in avoiding ...
3
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1answer
67 views
Get Ancestor Class Name that Defines CONST in PHP?
I have a class hierarchy in PHP and in some of the parent classes I have defined a constant, let's assume that constant is called TYPE for my example.
I want to ...
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1answer
57 views
Initialization of Extended class without too much overhead?
I am getting object of a class AAA from somewhere and I want to add more information in that object. So, I am creating a new class BBB which is derived from AAA. The class BBB has additional field ...
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1answer
40 views
1
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1answer
121 views
How to deal with interface inheritance and common properties? [closed]
I'm trying to design a generic caching system that takes keyed items and allows either read-only or read-write access to a cached version of it. The read-only backing interface is:
...
7
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2answers
1k views
Dispose pattern - DisposableObject
I am trying to make an universal implementation of IDisposable (as a base class):
...
1
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0answers
126 views
Do I need inheritance or no?
I'm using Pygame to create a small game with few rectangle shapes. However, I want to learn more about classes, and I'm trying to use them. I'm very new to classes and inheritance, but I want to ...
1
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2answers
146 views
Inheritance and forcing methods to be called inside another method
I've written a text parser that extracts useful information from a given text. Texts are formatted different, so there are different specialized parsers. I've designed them so that they all must ...
3
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2answers
1k views
Please check my improvement on John Resig's Simple JavaScript Inheritance
I've recently read this article, and I agree that the new keyword is not good practice.
Thus, I've made an improvement on John Resig's Simple JavaScript ...
