tawfekov/objectid

Unique Id generator inspired by mongodb object id

dev-master 2014-10-07 12:51 UTC

This package is auto-updated.

Last update: 2024-03-29 02:52:52 UTC


README

Unique Id generator inspired by mongodb object id

Overview

ObjectId <objectid> is a 12-byte String type, constructed using:

  • a 4-byte value representing the seconds since the Unix epoch or some folks call it unix timestamp
  • a 3-byte machine identifier hostname
  • a 2-byte process id
  • a 3-byte counter, starting with a random value.

In RDMS, records stored in a table require a unique id field that acts as a primary key. Because ObjectIds are small, most likely unique, and fast to generate you may want to use it in your next project