decoratedClass

Example of question: how to exclude decoratedClass from JSON links, created from Projection and received with Spring @RestController

https://jira.spring.io/browse/DATAREST-890 https://jira.spring.io/browse/DATACMNS-909

• Resolved by Oliver Gierke @olivergierke in spring-data-commons 1.13.0.BUILD-SNAPSHOT

Experiment with spring-boot version: in 1.3.7.RELEASE (spring data 2.4.4) decoratedClass is absent, but in 1.4.0.RELEASE (spring data 2.5.2) it is present

I'd like get clean JSON, when using Projection as DTO with RestController. However, in the best case we get JSON, most of which contain links to dekoratedClass. {"name":"Dmitry","id":1,"decoratedClass":"ru.inkontext.domain.Person", "adress":{"id":1,"decoratedClass":"ru.inkontext.domain.Adress","city":"Surgut"}}

Tests below imaging matter of question.

RestController

Without Projection

mockMvc.perform(get("/rest/persons/1")) .andExpect(jsonPath("id").value(1)) .andExpect(jsonPath("decoratedClass").doesNotExist());

Projection created by Repository

mockMvc.perform(get("/rest/persons/1/projected")) .andExpect(jsonPath("id").value(1)) .andExpect(jsonPath("decoratedClass").value("java.util.HashMap"));

Projection created by Repository with Generic

mockMvc.perform(get("/rest/persons/1/projectedClass")) .andExpect(jsonPath("id").value(1)) .andExpect(jsonPath("decoratedClass").value("java.util.HashMap"));

Projection created by Projection Factory

mockMvc.perform(get("/rest/persons/1/adressCity")) .andExpect(jsonPath("id").value(1)) .andExpect(jsonPath("decoratedClass").value("ru.inkontext.domain.Person"));

Standart Sring Data REST API

without Projection

mockMvc.perform(get("/rest/api/persons/1")) .andExpect(jsonPath("id").doesNotExist()) .andExpect(jsonPath("_links").exists());

with Projection

mockMvc.perform(get("/rest/api/persons/1?projection=adressCity")) .andExpect(status().isOk()) .andExpect(jsonPath("id").value(1)) .andExpect(jsonPath("_links").exists());