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JPA Exceptions

) . For example, if a transaction fails because of an attempt to store a new entity object with a primary

ObjectDB Overview

and Embedded mode. Single JAR with no external dependencies. Database is stored as a single file

Database Management Settings

stored in the database, the index cannot be used until all the existing instances are indexed

ObjectDB - Object Database for Java (JPA/JDO)

Boost your application database performance. Database performance is critical as it is the bottleneck in most applications. ObjectDB is extremely fast and much faster than any other JPA solution. Using a relational database management system (RDBMS) to store and retrieve Java objects requires slow

Obtaining a JPA Database Connection

construction. Using an EntityTransaction Operations that modify database content, such as store

Database Connection using JPA

(properties); EntityTransaction Operations that affect the content of the database (store, update, delete

Step 4: Add a Controller Class

entity object is constructed and stored in the database. Processing is forwarded to a JSP page

Step 4: Run the Application

will use the existing database file to store an additional 1000 objects. You can view the content

NetBeans/JPA Java EE Tutorial

object and all the Guest entity objects are stored in an ObjectDB database. Required Software

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

Getting Started

ObjectDB is very easy to use. Follow the Getting Started Tutorial and the Quick Tour manual chapter and in minutes you may be able to write and run first Java programs against ObjectDB.

Prior knowledge or experience in database programming (SQL, JDBC, ORM, JPA, etc.) is not required, but some background in using the Java language is essential.

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