Service Usage V1 API - Module Google::Protobuf::Field::Cardinality (v1.5.1)

Reference documentation and code samples for the Service Usage V1 API module Google::Protobuf::Field::Cardinality.

Whether a field is optional, required, or repeated.

Constants

CARDINALITY_UNKNOWN

value: 0
For fields with unknown cardinality.

CARDINALITY_OPTIONAL

value: 1
For optional fields.

CARDINALITY_REQUIRED

value: 2
For required fields. Proto2 syntax only.

CARDINALITY_REPEATED

value: 3
For repeated fields.

Except as otherwise noted, the content of this page is licensed under the Creative Commons Attribution 4.0 License, and code samples are licensed under the Apache 2.0 License. For details, see the Google Developers Site Policies. Java is a registered trademark of Oracle and/or its affiliates.

Last updated 2025年10月30日 UTC.