@ParameterObject support nested parameter objects

[luhuiguo]

When use Jhipster generator entity filtering
https://www.jhipster.tech/entities-filtering/

Parameter object

public class BookCriteria implements Serializable, Criteria {
  private LongFilter id;
  private StringFilter name;
  ......

Inner object

public class StringFilter extends Filter<String> {
    private String contains;
    private String doesNotContain;
    ......

  @GetMapping("/books")
  public ResponseEntity<List<BookDTO>> getBooks(@ParameterObject BookCriteria criteria, @ParameterObject Pageable pageable) {
    log.debug("REST request to get Book by criteria: {}", criteria);
    Page<BookDTO> page = bookQueryService.findByCriteria(criteria, pageable);
    ......

** Springfox
For each entity, you can enable filtering in the entity generator, and after, you can call your /api/my-entity GET endpoint with the following parameters :

For each xyz field
xyz.equals=someValue
To list all the entities, where xyz equals to ‘someValue’
xyz.in=someValue,otherValue
To list all the entities, where xyz equals to ‘someValue’ or ‘otherValue’
xyz.specified=true
To list all the entities, where xyz is not null, specified.
xyz.specified=false
To list all the entities, where xyz is null, unspecified.
If xyz’s type is string:
xyz.contains=something
To list all the entities, where xyz contains ‘something’.
......

** Springdoc @ParameterObject does't support nested parameter objects

id : {
  "equals": 0,
  "notEquals": 0,
  "specified": true,
  "in": [
    0
  ],
  "greaterThan": 0,
  "lessThan": 0,
  "greaterThanOrEqual": 0,
  "lessThanOrEqual": 0,
  "greaterOrEqualThan": {
    "equals": 0,
    "notEquals": 0,
    "specified": true,
    "in": [
      0
    ],
    "greaterThan": 0,
    "lessThan": 0,
    "greaterThanOrEqual": 0,
    "lessThanOrEqual": 0
  },
  "lessOrEqualThan": {
    "equals": 0,
    "notEquals": 0,
    "specified": true,
    "in": [
      0
    ],
    "greaterThan": 0,
    "lessThan": 0,
    "greaterThanOrEqual": 0,
    "lessThanOrEqual": 0
  }
}

[bnasslahsen]

@luhuiguo,

Can you have a look, you this enhancement using the last snapshot and give us your feedback?