syntax?=?"proto2";

package?tutorial;

option?java_package?=?"com.example.tutorial";

option?java_outer_classname?=?"AddressBookProtos";

message?Person?{

??required?string?name?=?1;

??required?int32?id?=?2;

??optional?string?email?=?3;

??enum?PhoneType?{

????MOBILE?=?0;

????HOME?=?1;

????WORK?=?2;

??}

??message?PhoneNumber?{

????required?string?number?=?1;

????optional?PhoneType?type?=?2?[default?=?HOME];

??}

??repeated?PhoneNumber?phones?=?4;

}

message?AddressBook?{

??repeated?Person?people?=?1;

}

proto

java

Int32

int

string

String

double

double

enum

enum

Int 64

Long