google::cloud::spanner::Json Class Reference

A simple representation for the Spanner JSON type: a lightweight, text-based, language-independent data interchange format. More...

#include <google/cloud/spanner/json.h>

Public Member Functions
	Json ()
	A null value. More...
	Json (std::string s)
	Construction from a JSON-formatted string. More...
Regular value type, supporting copy, assign, move.
	Json (Json const &)=default
Json &	operator= (Json const &)=default
	Json (Json &&)=default
Json &	operator= (Json &&)=default
Conversion to a JSON-formatted string.
	operator std::string () const &
	operator std::string () &&

Detailed Description

A simple representation for the Spanner JSON type: a lightweight, text-based, language-independent data interchange format.

JSON (the JavaScript Object Notation) defines a small set of formatting rules for the portable representation of structured data. See RFC 7159.

A Json value can be constructed from, and converted to a std::string. Json values can be compared (by string) for equality, and streamed.

There is no syntax checking of JSON strings in this interface. The user is expected to only construct Json values from well-formatted strings.

Constructor & Destructor Documentation

Json() [1/4]

google::cloud::spanner::Json::Json ( )

inline

A null value.

Json() [2/4]

google::cloud::spanner::Json::Json ( Json const &  )

default

Json() [3/4]

google::cloud::spanner::Json::Json ( Json &&  )

default

Json() [4/4]

google::cloud::spanner::Json::Json ( std::string  s )

inlineexplicit

Construction from a JSON-formatted string.

Note that there is no check here that the argument string is indeed well-formatted. Error detection will be delayed until the value is passed to Spanner.

Member Function Documentation

operator std::string() [1/2]

google::cloud::spanner::Json::operator std::string ( ) &&

inlineexplicit

operator std::string() [2/2]

google::cloud::spanner::Json::operator std::string ( ) const &

inlineexplicit

operator=() [1/2]

Json & google::cloud::spanner::Json::operator= ( Json &&  )

default

operator=() [2/2]

Json & google::cloud::spanner::Json::operator= ( Json const &  )

default