Add more examples

[remmeier]

• decoration of repository
• Entity <-> DTO mapping with map struct, mapping of QuerySpec, separate basic and advanced example
• JPA relationship example

[cgendreau]

I think an example of mapping QuerySpecs when we are doing the DTO mapping with MapStruct would be very useful.

[cgendreau]

I just found mapstruct/mapstruct#702 (comment)

[remmeier]

sounds good to me. You already have something running? or still in immediate need of an example?

[remmeier]

unfortuatenly nothing automatic as of yet. But there is a QuerySpecMutator class that can help getting the job done.

[cgendreau]

I should be able to provide something using QuerySpecMutator . Thanks for the hint.

I have to admit I'm having hard time with the last point (JPA relationship example). I will try to explain what I'm trying to do.

DTO -> Crnk Repository -> MapStruct -> Entity -> DAO (and the other way around for the response).

I can manage it with a regular repository but for the relationships I'm not sure how to approach it. I'm currently trying with ManyRelationshipRepositoryBase but I would like to avoid loading the related-dto and attached them to the source DTO (when setting a relation). If possible I would prefer to keep the ids and let the DAO setting the relationships without loading the related entities. I guess I could simply add the ID list to my DTO but I was wondering if it was the best way to achieve that. I hope it makes sense. Thanks!

[cgendreau]

I'm making some progress. The only major missing part is QuerySpec translation. Where can I find the QuerySpecMutator class?

[remmeier]

a sorry it is `QuerySpecVisitor` rather than `QuerySpecMuator`. It can then be used with `QuerySpec.accept` Am Mi., 30. Okt. 2019 um 14:33 Uhr schrieb Christian Gendreau < [email protected]>:

…

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