1. class
  2. Google
  3. \
  4. Protobuf
  5. \
  6. Field_Cardinality

Field_Cardinality

class Field_Cardinality

Whether a field is optional, required, or repeated.

Protobuf enum Google\Protobuf\Field\Cardinality

Constants

CARDINALITY_UNKNOWN

For fields with unknown cardinality.

Generated from protobuf enum CARDINALITY_UNKNOWN = 0;
CARDINALITY_OPTIONAL

For optional fields.

Generated from protobuf enum CARDINALITY_OPTIONAL = 1;
CARDINALITY_REQUIRED

For required fields. Proto2 syntax only.

Generated from protobuf enum CARDINALITY_REQUIRED = 2;
CARDINALITY_REPEATED

For repeated fields.

Generated from protobuf enum CARDINALITY_REPEATED = 3;