composition

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Composing two error-raising functions in Haskell

The problem I have been given says this: In a similar way to mapMaybe, def开发者_运维知识库ine[详细]

2022-12-16 15:13 分类：问答
C++: Composition Interface

So I\'ve spent some time thinking about this and been all over google looking for a \'solution\' (the solution is most likely a matter of preference, but I\'m unsure about this). Below is the problem[详细]

2022-12-15 15:46 分类：问答
Whether to model a car object (and its parts such as engine) with has-a (composition) or is-a (inheritance)?

I am developing a class library which will include the object Car. The dilemma is, Car itself will be a class with fields such as Registration Number, and other general information on the car.[详细]

2022-12-13 23:32 分类：问答
Is Double-buffering required with Desktop Composition enabled?

Is double-buffering still required when Desktop Composition is enabled? In Microsoft\'s Application Compatibility Guide:[详细]

2022-12-13 00:01 分类：问答
C++ implicit copy constructor for a class that contains other objects

I know that the compiler sometimes provides a default copy constructor if you don\'t implement yourself. I am confused about what exactly this constructor does. If I have a class that contains other o[详细]

2022-12-12 22:13 分类：问答
Code generation for composition using Eclipse

Effective Java, along with other sources suggest thatwe should consider using composition over inheritance. I have often found my self achieving such composition by using the Decorator pattern and imp[详细]

2022-12-12 02:58 分类：问答
Circular compositional pattern with RSS Feed and FeedItem classes

I\'m designing a small system to parse RSS feeds, and I have two classes: Feed and FeedItem. public class Feed[详细]

2022-12-11 03:04 分类：问答
C++ Templated return

I have a program which is built on \"Entities\", which hold \"Components\" (composition FTW). Components may include many different types including scripts, assets, etc. I would like to build an Enti[详细]

2022-12-10 16:41 分类：问答
How to deal with double composition and inheritance?

I found this related question: How do I use composition with inheritance? I would like to do the same with Objective-C, that is to say that a GenericView knows that its property obj is a GenericObjec[详细]

2022-12-10 15:55 分类：问答
Should I use inheritance or composition?

I would like to keep this one short. I build a HouseA that has two rooms, say BedRoom and StudyRoom, both deriving from a base class called Room.[详细]

2022-12-09 04:37 分类：问答