Questions tagged [object-oriented-design]
Object-oriented design is the process of planning a system of interacting objects for the purpose of solving a software problem.
1,741 questions
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Adding "caller specific" special cases to a factory
So I have this setup with a factory:
class Base;
class A : public Base;
class B : public Base;
...
class Factory
{
public:
Base* CreateBase(std::string TypeToCreate, const Parameters& P)
...
- 509
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How to Handle Data Persistence In Domain Driven Design
I am currently reading about domain-driven design and n-tier architecture with a service layer, and comparing them to try to understand how each architecture is executed.
For n-tiers (specifically 3-...
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Design pattern for exposing different parts of interface to different entities
In a certain program I would like to have three objects, say, a, b, and c, with c being a shared private member (sub-object) of a and b. The data between the three objects shall only go this way:
a &...
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When does encapsulating a primitive field into its own class make sense? [duplicate]
Let's say I have the following Java code:
public record Person(String firtName, String lastName, int age) {}
Can it makes sense to have instead:
public record Person(FirstName firtName, LastName ...
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How does Object-Oriented Design fit into N-Layered Architecture?
Normally an N-Layered application is structured as follows.
User Interface layer
Business Logic Layer
Data Access Layer
DAL contains objects (data containers) representing business entities. The BLL ...
- 795
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Difficulty understanding benefit of Separation of Concerns
One of the motivations for separation of concerns is so a change in one place does not affect the other. I am going to make an argument with my limited understanding. Here is a scenario where I fail ...
- 795
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5
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Handling class specific behavior: polymorphism vs instanceof
I'm designing a system with different types of components, and I'm trying to decide whether to use polymorphism or instanceof checks for handling type-specific behavior.
I see two possible approaches:
...
user466728
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LabVIEW Object-Oriented Scripting Engine
This question is for LabVIEW 2019. Highlighting that fact first because some of the "standard" object-oriented techniques like interfaces, type inference, template specialization, etc. aren'...
- 119
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How to encapsulate functions inside a library
I'm working on a project that uses an in-house library, which is also used by other projects.
There are some classes and methods in other classes that are not used outside the library itself, is there ...
- 139
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4
answers
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Avoiding instanceofs with GUI composites
I have a stack of custom Row widgets. Each of them is a label with some editComponent (often a JTextComponent). Rows are aware of their previous and next siblings (if a Row has no such sibling, the ...
- 2,030
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Refactoring object of large set of properties
I have a class that looks like:
class Vehicle:
coordinates: GeoCoordinates
speed: float
rpm: float
egt: float
// 100+ other parameters
A repertoire of concrete classes that use ...
- 1,273
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How to allow users to provide their own child classes in a factory design pattern in c++?
I am building a c++ project that will allow users to essentially model and create their own fleet of cars.
Right now, the approach I have in mind is a Car Factory Class that will implement all of the ...
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3
answers
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Is breaking encapsulation a necessary compromise for serialization?
I've been considering the way to solve this problem for a while, and I'm currently stuck between two options I both feel are suboptimal. Here's an abstract example of what I'm dealing with:
I have a ...
- 39
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Designing a Two-Party Protocol
I want to design a two-party protocol that runs on two different processes;
each process is one party of the protocol.
My implementation of a Protocol looks as follows:
enum class Role { P1, P2 };
...
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3
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Implementing factory that return the correct type
Imagine I have a factory that must create object based on unknown input (let's say user input).
class Base;
class MyFactory {
static unique_ptr<Base> CreateBase(Input& input);
}
Now this ...
- 509