About JPA

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Manual
97

Database Connection using JPA

Working with the Java Persistence API (JPA) consists of using the following interfaces: Overview ... for Query instances, which are needed for executing queries on the database. Every JPA implementation ... of ObjectDB classes that implement these interfaces, and because standard JPA interfaces are used
Manual
95

Chapter 3 - Using JPA

This chapter explains how to manage ObjectDB databases using the Java Persistence API (JPA). The first two pages introduce basic JPA interfaces and concepts: The next section explains how to use JPA for database CRUD operations: More advanced topics (e.g. locking and events) are discussed in the last section:
Tutorial
95

Getting Started with JPA and Eclipse

This is the Eclipse version of the Quick Start with JPA tutorial. It demonstrates how to create and run a simple JPA application in Eclipse. The demonstrated application uses JPA to store and retrieve simple Point entity objects, where each Pointhas two persistent fields: xand y. For this tutorial
Tutorial
95

Getting Started with JPA and NetBeans

This is the NetBeans version of the Quick Start with JPA tutorial. It demonstrates how to create and run a simple JPA application in NetBeans. The demonstrated application uses JPA to store and retrieve simple Point entity objects, where each Point has two persistent fields - x and y
Tutorial
95

JPA Web App Tutorial - Maven Project

The JPA Web Application tutorial provides step by step instructions on how to build a simple Java/JPA database driven web application (for Tomcat / Jetty) in Eclipse or NetBeans. Building a new ... the result application as a Maven project: JPA Web App - Maven Project (6KB) If Maven is installed
Tutorial
95

Spring MVC and JPA Tutorial

application using Tomcat (or GlassFish), JPA, ObjectDB and Maven. The demo web application manages ... that have already signed are listed below the form: Persistence is managed by JPA. Every visitor that has signed the guestbook is represented as Guest JPA entity object, and all Guest entity objects
Tutorial
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Getting Started with JPA - Maven Project

The Getting Started with JPA tutorial provides step by step instructions on how to build a simple JPA database driven application in Eclipse or NetBeans. Building a new application step by step ... a Maven project:     Getting Started with JPA - Maven Project (3KB) If Maven is installed - extract
Manual
95

Obtaining a JPA Database Connection

In JPA a database connection is represented by the EntityManager interface. Therefore, in order ... to get an EntityManager instance. JPA requires the definition of a persistence unit in an XML file in order ... a connection to the database. When using JPA, every operation on a database is associated
Manual
94

Chapter 2 - JPA Entity Classes

JPA Entity classes are user defined classes whose instances can be stored in a database. To store data in an ObjectDB database using JPA you have to define entity classes that represent your application data object model. This chapter explains how to define and use entity classes. 
Manual
92

Advanced JPA Topics

This section discusses advanced JPA topics: