Class ProtoMessage<M> (2.28.0)
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A representation of the Spanner PROTO type: a protobuf message.

A ProtoMessage<M> can be implicitly constructed from and explicitly converted to an M. Values can be copied, assigned, and streamed.

A ProtoMessage<M> can also be explicitly constructed from and converted to the M wire format, although this is intended for internal use only.

Given a proto definition message Mesg { string field = 1; }:

Mesg m;
m.set_field("value");
auto pm = spanner::ProtoMessage<Mesg>(m);
assert(Mesg(pm).field() == "value");

Constructors

The default value.

Implicit construction from the message type.

Parameter
Name	Description
`m`	`M const &`

Explicit construction from wire format.

Parameter
Name	Description
`serialized_message`	`std::string`

Explicit conversion to the message type.

Explicit conversion to wire format.

The fully-qualified name of the message type, scope delimited by periods.

Returns
Type	Description
`std::string const &`

Alias Of: M