All Questions
Tagged with springobject-oriented
7 questions
3votes
3answers
1kviews
Should business logic classes be POJO only?
I read about three-tier architecture and I have a question: I read that in business logic (that is, what is in logic tier) there should be POJO classes, but in most Spring manuals these classes are ...
0votes
2answers
540views
Interface and Implementation Classes
I know various forms of this question have come up before, but none of them quite seem to answer in a way that I can apply to / understand in relation to what I regularly see others doing. ...
17votes
4answers
14kviews
“Depend on abstractions, not on concretions” what is the exact meaning of this term
I was reading SOLID principles on a website, in which for D - Dependency Inversion Principle it says: “Depend on abstractions, not on concretions” In other words. we should design our software in ...
- 285
3votes
1answer
119views
How would I approach collecting statistic across a method call chain?
Let's say I have an processing pipeline. It receives a file, converts the file to data, interprets the data, and then persists it. At every step of this way, I would need to collect statistics, so I ...
- 405
9votes
2answers
40kviews
Are Spring beans declared as static a poor design choice?
The question is pretty straightforward, I'll try to explain why I want some explanations. (All of this is my 1½-year junior Java developer opinion, which may be more than incomplete. Which is why I ...
3votes
1answer
3kviews
Using prototype/non-Spring managed beans in Spring Web application
I have been working on few web applications/REST web services recently (Spring IoC/MVC/Data JPA etc) and they usually follow the same pattern: Controller classes --> Service classes (which have number ...
- 133
2votes
1answer
242views
Injection, strategies and OO
I'm working on refactoring a project. The business logic looks very much like using the Strategy pattern would be very beneficial, because depending on the values of three properties (let's say age, ...
- 1,657
