HP Integrity NonStop H-Series - Manual (Page 401)

20 Integrating JPA with Hibernate into Spring
This section describes how a Spring application can use the Java Persistence API (JPA) with
Hibernate for its database operation. This is demonstrated by modifying the EmpInfo application
(developed in
Getting Started with Spring chapter) using the Eclipse IDE.
The following topics are discussed in this section:
• Why Integrate JPA with Hibernate in Spring
• Example of Integrating JPA with Hibernate into Spring
Why Integrate JPA with Hibernate in Spring
JPA combines the best features from each of the persistence mechanisms, such as serialization,
JDBC, Java Data Objects (JDO), proprietary object-relational mapping tools, object databases,
and EJB 2.x entity beans.
JPA enables you to:
• store and retrieve persistent data
• use advanced object-oriented concepts such as inheritance
• avoid vendor lock-in
• focus on relational databases
Spring provides the complete EJB container contract for JPA, allowing JPA to be used under a
Spring managed services layer (with all the AOP and DI richness of Spring) in any environment.
Because Hibernate is compliant with JPA, its features can also be leveraged within the Spring
JPA implementation.
Example of Integrating JPA with Hibernate into Spring
The EmpInfo application (developed in the Integrating Hibernate into Spring chapter) is a Spring
application that uses Hibernate for handling database operations.
This section describes how to use JPA with Hibernate for handling the database operations of
the EmpInfo application.
Prerequisites
The prerequisites of integrating JPA with Hibernate in Spring are:
• Basic knowledge of the Spring and Hibernate frameworks.
• EmpInfo application (explained in the Integrating Hibernate into Spring chapter) developed
on your Windows system.
• Following software installed on your NonStop system:
— NonStop iTP WebServer
— NonStop Servlets for Java Server Pages (NSJSP)
— JDBC Type 2 driver for NonStop SQL/MX
— NonStop SQL/MX
— NonStop Server for Java (NSJ)
• Following software installed on your Windows system:
— Java Development Kit (JDK)
— JDBC Type 4 driver for NonStop SQL/MX
— Eclipse IDE
Why Integrate JPA with Hibernate in Spring 401