Java Hibernate Cookbook

Providing an XML-based hibernate mapping

In the preceding recipe, you learned how to create a POJO. Now we will consider how to create the configuration for hibernate. There are multiple ways of mapping, and this is one of them.

Generally, the configuration provides the following information:

• The mapping between the POJO and the database table
• The mapping between the POJO property and the database table column
• The definition of the primary key column
• The definitions of the foreign key column and relationships such as one-to-one, one-to-many, many-to-one, many-to-many with another table, and so on
• Constraints such as not-null, formula, lazy, cascade, and so on
• The definitions of the length, the data type of the column, the formula, and so on

How to do ...