[SPRING] Support for Spring Data Pageable

[Bloodlex]

Description

I would like the OpenAPI Generator to be able to generate Pageable parameter in API according to the implementation in Spring Boot Data. I've been trying to find a suitable, out of the box solution, but couldn't find one.

Ideally, this Pageable parameter should be added only to GET methods in a following manner:

default ResponseEntity<User> getUser(@ApiParam(value = "value",required=true) @PathVariable("id") Long id, Pageable pageable)

So after implementing this interface in my Controller I would need to override it and having this aforementioned Pageable parameter. I don't want to have separate parameters for size, page or sort, only this Pageable here.

Thanks for any tips and help!

openapi-generator version

4.3.0

[AlejandroKolio]

It would be nice to have a generified Page response automaticaly generated from spec. something like:
ResponseEntity<Page<User>> instead of ResponseEntity<Page>

[bilak]

@Bloodlex does this work for you #5022 ?

[lozybean]

It would be nice to have a generified Page response automaticaly generated from spec. something like:
ResponseEntity<Page<User>> instead of ResponseEntity<Page>

I have same problem. Page<User> in api-docs will produce schema name like Page« User» , and this will cause an error

-attribute components.schemas.Schema name Page«User» doesn't adhere to regular expression ^[a-zA-Z0-9\.\-_]+$

[Picazsoo]

#23575 has been merged and attempts to provide multiple improvements to Pageable support in both java-spring and kotlin-spring generators. Among those is support for automatic substitution of matching response body DTOs with PagedModel<T>. It probably will not cover all cases, but I hope it will be useful anyway. It can be understood as a first step.

I deliberately chose PagedModel<T> instead of Page<T> as PagedModel has a strictly defined serialized form unlike Page which is subject to change from version to version. The PagedModel<T> will replace models that would be generated from swagger looking like this:
#14062 (comment)