In this chapter, we looked at how to get started with Hibernate OGM; we learned the concepts behind it, the main features and gained an overview of its architecture. We also learned how to create and configure a persistence xml file, the available properties in Hibernate OGM, and how to integrate it with Infinispan.

To better understand the concepts, we created a sample application using Maven and Eclipse, for porting part of the domain model from the Ticket Monster application. At last, we created some unit tests to perform some basic operations and querying information about tickets.

In the next chapter, we are going to cover JGroups, one of the most important pieces of Infinispan. JGroups is a toolkit for reliable group communication, and you will learn about the JGroups architecture and how it integrates with Infinispan.