A representation of the Spanner ENUM type: a protobuf enumeration.
A ProtoEnum<E> can be implicitly constructed from, and explicitly converted to an E. Values can be copied, assigned, compared for equality, and streamed.
Example
Given a proto definition enum Color { RED = 0; BLUE = 1; GREEN = 2; }:
auto e = spanner::ProtoEnum<Color>(BLUE);
assert(Color(e) == BLUE);
Constructors
ProtoEnum()
The default value is the first listed in the enum's definition.
ProtoEnum(enum_type)
Implicit construction from the enum type.
Parameter
Name
Description
v
enum_type
Operators
operator enum_type() const
Explicit conversion to the enum type.
Functions
static TypeName()
The fully-qualified name of the enum type, scope delimited by periods.
[[["Easy to understand","easyToUnderstand","thumb-up"],["Solved my problem","solvedMyProblem","thumb-up"],["Other","otherUp","thumb-up"]],[["Hard to understand","hardToUnderstand","thumb-down"],["Incorrect information or sample code","incorrectInformationOrSampleCode","thumb-down"],["Missing the information/samples I need","missingTheInformationSamplesINeed","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2025-03-21 UTC."],[[["This webpage provides documentation for the `ProtoEnum` class within the Google Cloud Spanner C++ library, with the latest release candidate being 2.37.0-rc."],["The `ProtoEnum` class represents a protobuf enumeration and can be implicitly constructed from and explicitly converted to an enum type."],["Users can access documentation for various versions of the library, ranging from 2.11.0 up to 2.36.0 and the latest release candidate 2.37.0-rc, along with detailed descriptions for each."],["The `ProtoEnum` class supports copying, assigning, comparing for equality, and streaming of enum values, with a default constructor set to the first value of the enum's definition."],["It also provides the ability to obtain the fully-qualified name of the enum type and an implicit construction via a given enum type."]]],[]]
