Lightning Round @ ServiceRocket: EventSource journal using Akka Persistence

A short introduction on the implementation of EventSourcing using Akka Persistence

Getting Started

MySQL Schema

CREATE DATABASE lightning DEFAULT CHARACTER SET utf8 COLLATE utf8_general_ci;

DROP TABLE IF EXISTS journal;

CREATE TABLE IF NOT EXISTS journal (
  ordering SERIAL,
  persistence_id VARCHAR(255) NOT NULL,
  sequence_number BIGINT NOT NULL,
  deleted BOOLEAN DEFAULT FALSE,
  tags VARCHAR(255) DEFAULT NULL,
  message BLOB NOT NULL,
  PRIMARY KEY(persistence_id, sequence_number)
);

CREATE UNIQUE INDEX journal_ordering_idx ON journal(ordering);

DROP TABLE IF EXISTS snapshot;

CREATE TABLE IF NOT EXISTS snapshot (
  persistence_id VARCHAR(255) NOT NULL,
  sequence_number BIGINT NOT NULL,
  created BIGINT NOT NULL,
  snapshot BLOB NOT NULL,
  PRIMARY KEY (persistence_id, sequence_number)
);