All Questions
Tagged with springdomain-driven-design
15 questions
2votes
2answers
448views
How should I implement data access with jpa to meet Clean Architecture/DDD
For the last few days I'm searching any information about compatibility of JPA and Clean Architecture/DDD. I found next ideas for decoupling application from hibernate. Do not use @ManyToMany or @...
1vote
0answers
66views
Best practice: slightly different logic on multi mapping endpoint
Suppose I've got a spring controller as follows: ⋮ @RestController public class MyController { ⋮ @PostMapping(value = { "publicAPI/addItem", "internalAPI/addItem" }) ...
- 11
6votes
3answers
653views
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
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
0votes
1answer
126views
Where to put getOrSave responsibility?
I have many repeated parts of service logic which just fetches object if it exists or returns a newly saved one. I want to move it from service because it just clutters up the logic. But I do not ...
2votes
3answers
917views
How can I avoid duplicate annotations when validating both Entity and DTOs?
I am using the Spring Boot framework to create a RESTFUL API and I need a way to avoid the duplication of validation rules when using multiple DTOs as request/response objects for my endpoints. Using ...
1vote
2answers
846views
Confusion about layered architecture
Given a layered architecture consisting of presentation layer business logic layer data (access) layer and a SPA web application communicating through REST endpoints with the backend (eg Angular and ...
- 27
9votes
1answer
2kviews
How to achieve both: clean (hexagonal) architecture with JPA goodies?
How do I achieve two things at the same time writing Java Spring Application: Clean Architecture JPA goodies (@Transactional, Optimistic Locking, dirty checking, etc.) I like the idea of database/...
0votes
5answers
2kviews
performance suggestions on Aggregate root containing thousands of child entities
I understand that DDD is a design concept and implementation through ORMs are tricky but help me understand how would you solve this problem? So here is my confusion on changing on aggregates only ...
- 135
3votes
2answers
5kviews
How do entities, DTO, DOA work together and what’s their role within a system?
Most of my work is written in Java using Spring Boot. In a recent project my entities contained no business logic, Spring Data was used to handle repositories and I have service classes that ...
5votes
3answers
3kviews
Handling domain errors in the API
I'm working on building an API interface on-top of a domain-driven architecture. The domain layer has a bunch of specific exception classes (i.e. NameIsRequiredException, CannotPublishDraftException, ...
- 311
3votes
1answer
21kviews
Project Structure of Domain Driven Design in maven Java Spring-Boot [closed]
My team is in dilemma, we have an existing maven spring-boot Java8 project with following onion architechture. controller --> service --> dao --> jpa repositories ...
- 165
0votes
1answer
769views
In implementing layered API architecture with Spring MVC Boot, how to connect to various endpoints
If you want to implement a layered API design for example, you may have one API layer that represents the application layer. And I assume that the application layer is represented by an endpoint and ...
- 525
19votes
3answers
8kviews
DDD - Is anemic domain model an antipattern? Shoud we be using rich domain models? [closed]
Anemic domain model was criticized a long time ago by Evans and Fowler, since apparently it goes against object oriented principles, etc. The DDD community is clearly aligned with this statements. ...
- 427
4votes
1answer
1kviews
Does the Spring Data Repository implementation violate the principle of loose coupling?
So, at the moment I find myself building my c#/.net (web) application ( or folder/project/package-...) structure often like this, thinking about it in a "somewhat onion-architectural way": myApp -...
- 143
