Book Image

Mastering Hibernate

By : Ramin Rad, Koushik Srinivas Kothagal
Book Image

Mastering Hibernate

By: Ramin Rad, Koushik Srinivas Kothagal

Overview of this book

Hibernate has been so successful since its inception that it even influenced the Java Enterprise Edition specification in that the Java Persistence API was dramatically changed to do it the Hibernate way. Hibernate is the tool that solves the complex problem of Object Relational Mapping. It can be used in both Java Enterprise applications as well as .Net applications. Additionally, it can be used for both SQL and NoSQL data stores. Some developers learn the basics of Hibernate and hit the ground quickly. But when demands go beyond the basics, they take a reactive approach instead of learning the fundamentals and core concepts. However, the secret to success for any good developer is knowing and understanding the tools at your disposal. It’s time to learn about your tool to use it better This book first explores the internals of Hibernate by discussing what occurs inside a Hibernate session and how Entities are managed. Then, we cover core topics such as mapping, querying, caching, and we demonstrate how to use a wide range of very useful annotations. Additionally, you will learn how to create event listeners or interceptors utilizing the improved architecture in the latest version of Hibernate.
Table of Contents (16 chapters)

Chapter 4. Advanced Fetching

In this chapter, we will discuss various ways to fetch the data from the permanent store. In previous chapters, we have already seen some ways to fetch the data when working with annotated entities. Now, we will focus a little more on the annotations that are related to data fetch, Hibernate Query Language (HQL), execution of native SQL, criteria objects, and filters. We will also demonstrate how to perform pagination, which is a functionality that's very common in most enterprise applications.

We will cover the following topics in this chapter:

  • Fetching strategies

  • Hibernate Query Language

  • Native SQL

  • Criteria objects

  • Filters

  • Pagination