Updated at: 13 May 2019 18:47:18


Protocol buffers: language-neutral, platform-neutral, extensible way of serializing structured data for use in communications procols, data storage, and more.

Compiler generates data access classes, which provides simple accessors for each field as well as methods to serialize/parse teh whole structure to/from raw bytes.

Running the compiler will generate class called persons.

General problems that protocol solves

Deals with index server request/response protocol, where hand marshalling/unmarshalling has to be done.

General Syntax

Data Types

General Structure

message NameOfStructure { dataType nameField = val; }

dataType: 1 of above data types nameField: name of the field val: markers on each element that uniquely identify the unique tag that field uses in the binary encoding