Book Image

Java Hibernate Cookbook

By : Yogesh Prajapati, Vishal Ranapariya
Book Image

Java Hibernate Cookbook

By: Yogesh Prajapati, Vishal Ranapariya

Overview of this book

This book will provide a useful hands-on guide to Hibernate to accomplish the development of a real-time Hibernate application. We will start with the basics of Hibernate, which include setting up Hibernate – the pre-requisites and multiple ways of configuring Hibernate using Java. We will then dive deep into the fundamentals of Hibernate such as SessionFactory, session, criteria, working with objects and criteria. This will help a developer have a better understanding of how Hibernate works and what needs to be done to run a Hibernate application. Moving on, we will learn how to work with annotations, associations and collections. In the final chapters, we will see explore querying, advanced Hibernate concepts and integration with other frameworks.
Table of Contents (15 chapters)
Java Hibernate Cookbook
About the Authors
About the Reviewers

Creating a column in the table – @Column

In the previous recipe, you learned how to create a table in the database with attributes. Now, we will take a look at how to declare a column in the table with some useful options.

How to do it…

First of all, we take a basic example of creating a column:

  1. We will first create a column with the name empCode in the employee table. As no information is provided for the column name, hibernate uses a variable name. Enter the following code:

    public class Employee {
        private String empCode;
        // fields and getter/setter
  2. If we need a custom column name, we can use the name attribute, as shown in the following code:

    private String empCode;

Now, hibernate will create a column with the name "emp_code".

There's more…

Let's take a look at some useful attributes available for the @Column annotation.


The length attribute is used to provide the column with a maximum size.

Here is an example: