Questions tagged [coupling]
The coupling tag has no usage guidance.
2
votes
2answers
194 views
Tight coupling between parent and children: always to be avoided?
Say we consider two inherently coupled elements, using a real-life like example:
Body
PhysicalIllness
Note: the following code is pseudo-Java for the sole purpose of syntax-coloring, pure syntax ...
1
vote
3answers
189 views
Is it a good idea to use data structures(classes) provided by a dependency in our system?
I am building a new system, which I will call S, that needs to get some data from another system, which I'll name D. System D provides a client and a collection of classes(POJOs) to represent the ...
10
votes
5answers
2k views
How to use dependency injection and avoid temporal coupling?
Suppose I have the Service that receives dependencies via constructor but also needs to be initialized with custom data (context) before it can be used:
public interface IService
{
void ...
0
votes
2answers
82 views
What is the appropriate architecture to access variable in parent from element of child list?
I have a Parent object which looks like this (pseudocode):
class Parent {
String token;
Child[] children;
}
It contains a token string and an array of Child objects. My problem is that each of ...
0
votes
1answer
140 views
How to connect two objects that communicate with each other?
I am writing a simple chat using Node.js, Websockets and Vue.js. Specifically, I have a Vue instance and a Websockets Client. When a user presses a "Submit" button, Vue asks the Client to send a ...
0
votes
2answers
98 views
Referencing Database Primary Keys from Codebase
I don't have a lot of experience with these kind of issues, but I feel I need to consult on this issue. The current codebase I'm working on is using what I consider to be a questionable technique to ...
1
vote
0answers
206 views
Designing a multithreaded TCP/UDP server for audio sharing
As briefly introduced in the question title, I am trying to design and implement a server application able to let clients share audio contents between themselves. In order to achieve that, I decided ...
3
votes
3answers
1k views
Business Logic Entities and Data Access Layer Entities
I am thinking on how to structure a project. I wonder if it is a good practice to use different entity classes between the BL and DAL in order to decouple these layers.
I have worked on projects ...
2
votes
3answers
186 views
Does SRP feed tight coupling?
I designed a function which, afterwards, I noticed it is clearly doing 2 very different tasks in the same time.
So now I am thinking to split it into 2 different functions, each one of them doing ...
4
votes
2answers
379 views
Does composition increase or decrease the coupling
We know that composition is a synonym of loose coupling.
From here I read coupling becomes stronger between the classes A and B when:
A has an attribute that refers to (is of type) B.
To ...
0
votes
0answers
276 views
Fluent validation - integrate in my business objects best practices
I am involved in the development of a price engine system.
I have a set of business objects like Car, Engine, Wheels, etc
I want to validate them using the framework Fluent Validation
Here an example:...
14
votes
5answers
560 views
Is it possible to apply DRY without increasing coupling?
Assume we have a software module A that implements a function F. Another module B implements the same function as F'.
There are a number of ways to get rid of the duplicate code:
Let A use F' from B....
2
votes
0answers
81 views
Packages, a controller class, and coupling vs cohesion
So I'm building my first application, in Python, and some issues have cropped up because of the lack of interfaces (I.e. explicit type declaration)
My design involves several homebrew packages, and I'...
13
votes
3answers
373 views
Code coupling introduce by DRY and OOD
I'm looking for guidance about DRY vs Code coupling.
I do not like to duplicate my code and I also do not like code coupling between unrelated modules. So I refactor duplicate code if I find ...
1
vote
4answers
268 views
How to prevent implementation/algorithm from leaking into unit tests?
I'm hesitating between algorithm and implementation as most of the questions here on how to prevent coupling between implementation and tests are about using spies/stubs or mocks.
The typical problem ...
2
votes
2answers
234 views
Wrapping 3rd party objects that are dependant upon each other and best practices
I'm having a bit of a moment of indecision here and I'd like some perspective on it.
I'm currently wrapping up objects from a 3rd party API (at home for my own project and at work), and I'm doing my ...
2
votes
0answers
98 views
Ripple Effect Analysis using coupling metrics
How can I observe ripple effect using coupling attributes alone?
I first find the common coupling metrics for a set of deprecated classes in a project, like CBO(Coupling Between Objects), RFC(...
-1
votes
2answers
91 views
Should I split a single class into multiple classes to reduce dependency if possible? [closed]
For example, suppose I have a class like that:
public class ABC{
private Data data;
public ABC(Data data){
this.data=data;
}
public void ab(A a,B b){
//some codes ...
0
votes
1answer
216 views
Polymorphism factor and code maintainability
What I want to get clarified is, having a polymorphism factor of 100%, does it means code becomes hard to maintain , and does high polymorphism factor introduce high level of coupling even though ...
1
vote
0answers
119 views
Distributed systems design and coupling
I have a question around which is preferred and seen as more right approach.
Out company's messaging solution of choice is Kafka. We have a task to build a service that would provide events in cloud ...
3
votes
3answers
601 views
How to decouple code behind with business logic?
I'm having a hard time to decouple two classes.
I have my code behind (will call it "class A") that I use to tweak the interface (defined in xaml).
Next I have a class B that is only logic. But ...
1
vote
0answers
125 views
How to decouple a message broker and its message handlers?
Project description:
I have a nodejs project where I try to build a bluetooth mesh like network,
each node consists roughly of 4 parts the frontend part, the message broker, a bluetooth client and a ...
2
votes
1answer
241 views
Is usage of Nested classes an example of tight coupling ? (JavaFX)
So I'm working on this game where I have a nested class which has to get access to the member functions and variables of the outer class in order to perform it's functionalities. In particular the ...
1
vote
2answers
440 views
Java loose coupling data passing between components
Let's say I have two components talking to each other. The first one calls a "get results" function from the second one. How should I return the results?
For example,
SomeObject getResults(String ...
1
vote
2answers
748 views
Why Named Constructors are getting popular shouldn't be an antipattern?
According to following article Named Constructors The Author suggests using static factory pattern to construct objects is way better than instantinate with new keyword. At the begining the idea is ...
0
votes
1answer
67 views
Api and Auth tightly coupled circular dependancy
I am programming an application and am having trouble finding a good architecture for some of its components.
As part of the front-end app, I have a user authentication system and an API that allows ...
0
votes
2answers
507 views
Is there a reason to avoid tight coupling to a model class?
By this I mean something like Student, which is modeling a Student table row:
class Student
{
public string lastname;
public string firstname;
}
It doesn't make sense to me to program to an ...
0
votes
2answers
694 views
Relation between LOC and Cyclomatic Complexity
Is there something that ratio of the metrics LOC and Sum Cyclomatic Complexity in a project with many modules can talk about?
Does it show the logical complexity of a module/project?
0
votes
1answer
222 views
Convenience vs Decoupling/Composition
Let's say I have a small CD burning library written in Python, with a CD class and a Burner interface + implementation classes:
# Module cd.py
class CD:
def __init__(self):
self.folders = []
...
2
votes
1answer
2k views
What exactly is data coupling? What are its downsides?
I came across it in this article:
You call a method and pass it a parameter that doesn’t affect its control flow.
This is still coupling, but we’re starting to reach the kind that
isn’t so ...
2
votes
1answer
1k views
OOP metrics to determine coupling
Two of the OOP metrics, Coupling Between Object classes (CBO) and Polymorphism Factor (PF) both measure coupling.
Is there an instance where of them has a higher coupling while another has a lower ...
0
votes
1answer
130 views
What kind of parameter coupling is the least taxing for the caller when data needs to be mapped?
I'm creating a math library that will deal with points as function inputs (as shown below).
public struct Point { public int X; public int Y; }
public static class MyLib
{
public static float ...
2
votes
2answers
137 views
Loose coupling of daemon process and administration interface
I have a daemon process, written in Java, which I would like to be configurable at runtime via an HTTP-based API.
For a number of reasons, I'd rather keep the admin API separate from the daemon ...
-1
votes
1answer
121 views
What are some ways to compare and contrast software architecture strategies?
I am currently working on an Android project that I have concluded needs refactoring done for a core part of the app experience. Let's call this part of the experience "Search".
From looking at bug ...
0
votes
1answer
130 views
Method pattern and method coupling
Disclaimer: I am going to write in Python and in the context of web development with Django, but this question is not language nor framework specific.
Let's say I have a PizzaManager class that ...
5
votes
3answers
144 views
Passing database connection to the library
I'm writing java library(jar file) to log Web service request and responses in a Database for in-house application. This library will have two methods registerReuqest and registerResponse.
I'm ...
1
vote
1answer
415 views
Data Transfer Between Loosely Coupled Modules of an Application
Let's say we have a rather large project written in Python using the Django framework that is made up of multiple modules (proper term in Django is a project made up of multiple apps, but for the sake ...
1
vote
1answer
189 views
Qualified dependency injection and coupling
Many java DI frameworks (Spring, CDI amongst others) implements some kind of qualified injection through user-designed qualifiers annotations.
interface Engine { .. }
@Powerful
public PowerfulEngine ...
9
votes
3answers
2k views
In a loosely coupled microservices architecture, how do you keep track of your dependencies?
A popular high level architecture choice in modern program is a REST-based microservices system. This has several advantages such as loose coupling, easy re-use, limited restriction on technologies ...
1
vote
1answer
205 views
C# - Data-Driven Design & Coupling - Mother may I?
I have used data-driven design in the past and it has worked quite well. What I dislike about it is if you need some form of a string whose value has to be updated based on other values.
e.g., "...
8
votes
2answers
577 views
Am I trying to decouple classes too much here?
I am working on a real-time terrain rendering engine. I have a QuadTree and Node classes. The QuadTree class expands/collapses a tree depending on where the camera is. So it makes sense that the ...
5
votes
2answers
161 views
Is avoiding having the fields representing the same object in different communicating classes reasonable?
I'm developing a program which does communication to different types of devices (with respective protocols). It should concurrently acquire messages from devices and write them to a file with specific ...
166
votes
9answers
27k views
I changed one method signature and now have over 25,000 errors. What now?
I started a new job recently where I am working on a very large application (15M loc). In my previous job we had a similarly large application but (for better or for worse) we used OSGi, which meant ...
3
votes
1answer
344 views
Architecture recommendation for Android
Recently I developed an Android application which is very difficult to maintain. We are stuck in a complicated situation. We developed Android Apps which contained 500k LOC and another team developed ...
1
vote
2answers
59 views
Proper event driven design when a consumer subscribes to many producers
I have a large number of instances of a class. Those instances can fire an event. The only important thing for that event is which instance fired it.
I have another instance of a class (and maybe in ...
-4
votes
2answers
292 views
Can we fix Singletons testability tight coupling?
It is well known that Singletons are anti-patters for several reasons:
tight coupling
singletons are pathological liars
no testability
inheritance is not available
you cannot program to interfaces, ...
20
votes
3answers
6k views
How to decouple UI from logic on Pyqt/Qt apps properly?
I've read quite a lot about this subject in the past and watched some interesting talks like this one from Uncle Bob's. Still, I always find pretty difficult to architect properly my desktop ...
20
votes
5answers
2k views
Why would a type be coupled with its builder?
I've recently deleted a java answer of mine on Code Review, that started like this:
private Person(PersonBuilder builder) {
Stop. Red flag. A PersonBuilder would build a Person; it knows about ...
19
votes
4answers
3k views
Event-driven programming: when is it worth it?
Ok, I know the title of this question is almost identical to When should I use event based programming? but the answers of said question have not helped me in deciding whether I should use events in ...
4
votes
1answer
619 views
Dependency Injection & In-class Instantiation | Practical Limitations
Dependency Inversion is Good
Inversion of dependency is good, it:
Simplifies unit-testing
Reduces coupling, allowing software components to be used interchangeably
Keeps instantiation logic for a ...
