Java Spring Boot OpenApi 3 - How to add #Schema for RequestBody? - swagger-ui

Question

#PostMapping(produces = "application/json", consumes = "application/json")
public ResponseEntity<Book> addBook(
#RequestBody(description = "Book to add.", required = true,
content = #Content(
schema=#Schema(implementation = Book.class)))
#Valid Book book
) {
return ResponseEntity.ok(bookRepository.add(Book));
}
2.
#PostMapping(produces = "application/json", consumes = "application/json")
public ResponseEntity<BasicBook> addBook(
#RequestBody(description = "Book to add.", required = true,
content = #Content(
schema=#Schema(allOf = BasicBook.class, oneOf = {
HomeScience.class, GeneralScience.class })))
#Valid BasicBook book
) {
return ResponseEntity.ok(bookRepository.add(Book));
}
Above snippet 1. is working fine. In the Swagger UI I can see the RequestBody with example value where I can execute that.
but for snippet 2. when I am trying inheritance (i.e. oneOf, allOf or anyOf), this schema is not working.
Only BasicBook properties are coming in (Swagger UI)RequestBody's example value.
I have tried with #Parameter also. Here is the code
3.
#PostMapping(produces = "application/json", consumes = "application/json")
public ResponseEntity<BasicBook> addBook(
#Parameter(required = true, description = "DTO for book.", content = {
#Content(mediaType = "application/json", schema = #Schema(allOf = BasicBook.class, oneOf = {
HomeScience.class, GeneralScience.class }, discriminatorMapping = {
#DiscriminatorMapping(value = "HOME", schema = HomeScience.class),
#DiscriminatorMapping(value = "GENERAL", schema = GeneralScience.class) }, discriminatorProperty = "type")) })
#RequestBody #Valid BasicBook book
) {
return ResponseEntity.ok(bookRepository.add(Book));
}
snippet 3. also not giving desired result.
How can I use oneOf, allOf or anyOf in the RequestBody.