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Service Layer design

 
Ranch Hand
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Hi,
I am trying to design a service layer. Service layer interacts with many clients via remoting but all the clients related to same business group.
My question is how do I design my service for loose coupling


say client 1 needs

PersonResponseDTO getPersonDetails(PersonDTO)

say client 2 needs
PersonResponseDTO getPersonWithAllHisPets(PersionDTO)


PetResponseDTO getPetsWithNoOwners(PetDTO)


My concern here is, I start having DTO's like this I will end up creating lot of DTO's.
I am afraid this is tight coupling.
we can exchange data with xml but I do not want parsing overhead because these application purely internal.
How best I can take input from client and give response back.
Since each client need different level of details, do you guys know how best we can achive this?
 
ranger
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Please do not duplicate post.

Closing this thread as it is a dup of

https://coderanch.com/t/464390/Java-General/Service-Layer-design

Thanks

Mark
 
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