Introduction

This is a sample application to demonstrate Spring Boot, ElasticSearch and Axon Framework V3.

The Todo application makes use of the following design patterns:

• Domain Driven Design
• CQRS
• Event Sourcing
• Task based User Interface

Building

mvn package

Running

Starts spring boot app with local elasticsearch and InMemory event store.

mvn spring-boot:run

Browse to http://localhost:8080/index.html

Running (with elasticsearch cluster)

Builds a docker image with the spring boot app and runs it with an elastic search cluster

mvn install -P docker-build docker-compose up

Browse to http://localhost:8080/index.html

Implementation

Implementation notes:

• The event store is currently backed by a InMemory implementation which comes with Axon
• The query model is backed by a local ElasticSearch node (running in the same JVM) using Spring Data ElasticSearch (can be changed to a cluster in application.properties)
• The user interface is updated asynchronously via stompjs over websockets using Spring Websockets support

Documentation

• Axon Framework - http://www.axonframework.org/
• Spring Boot - http://projects.spring.io/spring-boot/
• Spring Framework - http://projects.spring.io/spring-framework/
• Spring Data ElasticSearch - https://github.com/spring-projects/spring-data-elasticsearch