All Questions
Tagged with architecturejava
205 questions
11votes
7answers
5kviews
How to maintain dependencies shared among microservices?
There is a dependency jar containing tons of service classes mostly used to retrieve data from database, and this jar is used among several different micro services in one cluster. There is a big ...
- 1,925
6votes
3answers
656views
Hexagonal Architecture + Domain Driven Design. How to perform a correct implementation?
Currently, I am trying to implement these two architectures together with Java and Spring (although technology shouldn't matter I think). But I'm encountering problems getting them to work together. I ...
- 171
1vote
4answers
413views
Preventing payment to be processed twice
I have app with paymemt/subscription service, pretty much how the payment works is: Initial payment User initiate payment on the web ( click on "subscribe") Back-End send init request to ...
- 227
0votes
2answers
221views
Where perform mapping in strict Domain-Driven Design?
I want to create an example application where we use a strict domain-driven design and layering (controller, service, repository). Most notably, we have a clear distinction between the domain and the ...
- 9
1vote
1answer
149views
Background thread processing vs queue based processing for relatively short tasks (max 30-40 seconds)
I need suggestion / recommendation on the design approaches mentioned below. UseCase: I have a usecase where a client uses my system to generate some recommendations. Now, these recommendations are ...
- 19
25votes
4answers
42kviews
Service layer returns DTO to controller but need it to return model for other services
Following this post https://stackoverflow.com/questions/21554977/should-services-always-return-dtos-or-can-they-also-return-domain-models and best practices in Software Arch suggestions by Martin ...
- 481
70votes
4answers
59kviews
Uncle Bob's clean architecture - An entity/model class for each layer?
BACKGROUND : I'm trying to use Uncle Bob's clean architecture in my android app. I studied many open source projects that are trying to show the right way to do it, and I found an interesting ...
- 801
-1votes
1answer
459views
Using a shared enum across 15 nanoservices [closed]
Originally posted here, moved to code review, redirected from code review back here as there is no code to review. I think the question is enough abstract to be asked here. I have a mono repo with ...
3votes
1answer
6kviews
Best way to handle lazy models with mapstruct and spring transactional scope
In a typical Java Spring Web APP: we have the following layers: Model [DB Models] Repositories [where you have queries to DB] Services [Business service where you have the @Transactional annotation] ...
- 481
0votes
0answers
117views
Spring data exchange between components?
Please advise me what pattern to use in following case: I have a Java/Spring Boot application. There is a component with @KafkaListener method which receives Kafka Messages on CRUD of various subject ...
- 107
1vote
1answer
566views
The recommended Spring Boot project structure leads to repetitive code
When implementing projects in Spring Boot (especially CRUD applications), I often find myself writing a lot of repetitive code that just calls functions and services from lower layers. For example, ...
- 13
0votes
1answer
240views
Is it secured to accept and execute user provided CURL commands
Assume you have to figure out a dynamic way where the user can provide an API call to hit in the backend for example, user to provide a webhook to call on his end server So, An idea for users to ...
- 481
6votes
3answers
3kviews
In vertical slice architecture, how can I deal with entities/repositories that are used in multiple slices?
I'm trying to group the components of my system by funtionality. This is the analysis class diagram of my system model. A service class that involves a Post entity might necessarily interact ...
- 363
1vote
1answer
354views
Extract common code into own module
I'm finding myself in a situation where I need to define common behaviour and implement it depending on the environment (minecraft server or javafx runtime). The simple graph below describes my idea. ...
- 21
28votes
1answer
48kviews
Splitting a big project to create a multi-module Maven project
I am working on a Spring-MVC application in which we are using Maven for dependency management. As the project is big, we are thinking of splitting the project into several parts. I had some doubts, ...
- 441
