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  1. 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 …

  2. What does mapping mean in programming? - Software Engineering …

    The programming uses of the verb "map" and the noun "mapper" are largely unrelated to their common uses in English, so this is a very understandable question. The programming use is also very broad, …

  3. How do Repository and Data Mapper patterns work together?

    Jun 28, 2023 · 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 …

  4. java - Should I mock ObjectMapper in my unit tests? - Software ...

    Sep 29, 2020 · 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.

  5. Best practices regarding type mapping and extension methods

    Nov 3, 2015 · 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 …

  6. object oriented - Mapping list to another list dynamically - Software ...

    Jul 19, 2023 · The CreateMap line can of course be replaced by whatever your mapper configuration is. You could perform this test for each mapping separately, or you could load up everything and see if …

  7. c# - Onion architecture object mapping - Software Engineering Stack ...

    Dec 31, 2025 · I'm reading and playing a bit with Onion on a mock side project and things got a little desperate with all the objects and the mappings. Consider this Diagram of a request and the various …

  8. java - Best way to handle lazy models with mapstruct and spring ...

    Jan 5, 2021 · But here the problem, When mapper starts to convert Engine it will get LazyInitializationException since transaction was already committed and closed in service and …

  9. Good practices to implement mappers in a multi-tier application

    Feb 4, 2013 · The application I currently work with utilizes separate mapper class for every possible translation, and although it has benefits of testability we are using dependency injection and we have …

  10. Am I wrong in thinking that needing something like AutoMapper is an ...

    Automapper is an "object-object mapper" for .Net, which means copying objects from a class into another class that represents the same thing. Why is this ever useful? Is the duplication of classes...