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- Is Mapper a valid design pattern or is it a variation of the Factory . . .
The Mapper is essentially a constructor inside out Suppose for a while, if you don't have a Mapper - when you need many seta of parameters they are all arguments on the constructor Now as things evolve, some applications are not aware of additional attributes that needs to go under constructor where one either computes it or use default
- How do Repository and Data Mapper patterns work together?
Data Mapper, presumably, has the standard "CRUD" interface, and nothing else But this suggests a problem How do you implement the query methods of the Repository? In particular, is the Repository only allowed to know about the DB through the Data Mappers? Whether or not that is the case, it seems there is a downside:
- java - Best way to handle lazy models with mapstruct and spring . . .
But here the problem, When mapper starts to convert Engine it will get LazyInitializationException since transaction was already committed and closed in service and Engine is lazy initialized
- java - Should I mock ObjectMapper in my unit tests? - Software . . .
It could be replaced with a custom mapper later When testing the OP's methods I don't think that the call to the mapper matters, what I care about is that the result of the method is correct
- architecture - Mapping to and from domain entities - Software . . .
I am in the process of implementing onion clean architecture, and would like to understand better how and when to map to my domain entities So if we take a specific example where we have a Post
- Best practices regarding type mapping and extension methods
Converter Mapper class I create separate class that will handle conversions and implement methods that will take source class instance as an argument and return destination class instance
- What design pattern solution helps me elegantly map classes that . . .
I'm looking for an elegant way (a design pattern if such exists, not a library) to map two classes that share the same base class, without duplicating the code that maps the properties of the base
- architecture - Should I strictly use both DTOs and models in Angular . . .
The problem is if I follow this approach I will have to then write mapper also for all the DTO to model classes which seems unnecessary effort I can easily achieve everything without breaking any design pattern with having any one of DTO or model classes
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