Spring Data Graph comes with a number of sample applications. The source code of the samples can be found on Github. The different sample projects are introduced below.

The Hello Worlds sample application is a simple console application. It creates some worlds (node entities) and rocket routes (relationships) between worlds, all in a galaxy (the graph), and then prints them.

The unit tests demonstrate some other features of Spring Data Graph as well. The sample comes with a minimal configuration for Maven and Spring to get up and running quickly.

Executing the application creates the following graph in the graph database:

The IMDB sample is a web application that imports datasets from the Internet Movie Database (IMDB) into the graph database. It allows the listing of movies with their actors, and of actors and their roles in different movies. It also uses graph traversal operations to calculate the Bacon number of any given actor. This sample application shows the usage of Spring Data Graph in a more complex setting, using several annotated entities and relationships as well as indexes and graph traversals.

See the readme file for instructions on how to compile and run the application.

An excerpt of the data stored in the graph database after executing the application:

Simple, JPA-based web application for managing users and restaurants, with the ability to add restaurants as favorites to a user. It is basically the foundation for the MyRestaurants-Social application (seeSection 22.5, “MyRestaurant-Social sample application”), and does therefore not use Spring Data Graph.

This application extends the MyRestaurants sample application, adding social networking functionality to it with cross-store persistence. The web application allows for users to add friends and rate restaurants. A graph traversal provides recommendations based on your friends' (and their friends') rating of restaurants.

Here's an excerpt of the data stored in the graph database after executing the application: