All Questions
Tagged with design-patternsobject-oriented-design
605 questions
2votes
0answers
223views
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 ...
- 129
1vote
3answers
263views
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 ...
- 27
2votes
3answers
951views
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 ...
2votes
3answers
313views
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 ...
- 479
1vote
1answer
336views
Mapping complex objects to other similar complex objects
I am working on two applications that serve the same purpose. The first application is more feature rich and its types are more complex, but uses old technologies and will be retired. It will ...
- 127
2votes
1answer
136views
For N and NBuilder, should N be an instance variable of NBuilder, or all parameters of N be instance variables of NBuilder,finally new N() in build()?
As far as I know about builder pattern, for example, an object, Student: public class Student{ private String name; private int age; //setter and getter } to apply builder pattern to ...
- 2,983
3votes
1answer
181views
Seeking Clarification on the Abstract Factory Pattern
I am seeking clarification on the exact purpose and definition of the Abstract Factory pattern. According to the GoF (Gang of Four) book, the intent of the pattern is to: Provide an interface for ...
0votes
1answer
168views
Is it good practice for object APIs to be required to be called in sequence to gather information?
I had this discussion with someone and it ended ambiguously. Suppose you have a class that needs to Parse a file to gather some information. It can expose this information to you after the fact. ...
1vote
2answers
127views
How do I reduce number of FieldValidator derivations?
I am trying to write RSQL Parser which checks if the RSQL is logically correct. while the RSQL Java library checks whether the RSQL expression is grammatically correct, it doesn't check if the ...
-3votes
1answer
268views
How should I architect a cricket scoring app?
Cricket scoring is complex and I want to build an app in part to practice good design principles/patterns and develop a clean solution. A few high level classes I have in mind are: Match | Innings | ...
- 397
2votes
2answers
562views
Is this architecture overkill? What is a good way to architect this software?
I have an algorithm I am trying to implement that has steps 1 to 5. There are several different ways I could implement each step. Each calculation step is essentially just an astronomy calculation, ...
- 187
0votes
1answer
148views
How to model in OOP interactions with entities in other systems?
Assume we are designing a typical bank account management system. Customers can have one or more accounts. Customers can deposit cash, withdraw cash or transfer money to another account (and, of ...
- 109
0votes
4answers
233views
What is the advantage/disadvantage of returning a UnSubscribe class to Observer as opposed to just calling a UnSubscribe method of Observable?
There are two ways to provide a way unsubscribe in Observer Design Pattern. 1. Provide a simple void UnSubscribe method: public void UnSubscribe(IObserver observer){ // remove observer from List of ...
- 377
0votes
0answers
98views
By creating an architecture, it is better to have many classes that handles different scenarios, or a single one that handles all? [duplicate]
During my limited professional experience, I have been involved in microservices projects with a common structure: The Controller takes a request and validates it using the jakarta.validation....
0votes
0answers
251views
better structure of a software project to prevent circular dependencies
I am contacting you today regarding a recent problem with circular dependencies. It's about a Spring boot application that accepts data via a Rest API and then forwards it to an internal Spring ...
- 77
