I read again this post after this one https://community.simplicite.io/t/how-to-enable-disable-pooling-while-saving-in-db
Here also it seems that you are coding a low level API where there is no need to do so, Simplicité offers native generic APIs that does not require any coding
In your case I think you just need to implement what we call API naming mapping = add an objects/fields/links mapping layer on top of the business objets so as it complies with your API standards.
To acheive this this you can either write some Java code like in this demo example or (as of version 6) simply describe the mapping using JSON settings:
Using the above mapped REST APIs does not require that you implement any business object CRUD-related code which is taken care by the platform.
Writing custom REST APIs are dedicated do more specific stuff than just CRUD on business objects