Batch Delete methods: Parent resource reference

This rule enforces that all BatchDelete requests have google.api.resource_reference on their string parent field, as mandated in AIP-235.

Details

This rule looks at the parent field of any message matching BatchDelete*Request and complains if it does not have a google.api.resource_reference annotation.

Examples

Incorrect code for this rule:

// Incorrect.
message BatchDeleteBooksRequest {
  // The `google.api.resource_reference` annotation should also be included.
  string parent = 1;

  repeated string names = 2 [
    (google.api.field_behavior) = REQUIRED,
    (google.api.resource_reference).type = "library.googleapis.com/Book"
  ];
}

Correct code for this rule:

// Correct.
message BatchDeleteBooksRequest {
  string parent = 1 [
    (google.api.resource_reference).child_type = "library.googleapis.com/Book"
  ];

  repeated string names = 2 [
    (google.api.field_behavior) = REQUIRED,
    (google.api.resource_reference).type = "library.googleapis.com/Book"
  ];
}

Disabling

If you need to violate this rule, use a leading comment above the field. Remember to also include an aip.dev/not-precedent comment explaining why.

message BatchDeleteBooksRequest {
  // (-- api-linter: core::0235::request-parent-reference=disabled
  //     aip.dev/not-precedent: We need to do this because reasons. --)
  string parent = 1;

  repeated string names = 2 [
    (google.api.field_behavior) = REQUIRED,
    (google.api.resource_reference).type = "library.googleapis.com/Book"
  ];
}

If you need to violate this rule for an entire file, place the comment at the top of the file.