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OpenBooks is a Swing based sample (and perhaps, simple) application featuring some of the new features in JPA 2.0.Image Removed.
This demonstration features usage of new JPA 2.0 features such as

• Criteria Query
• Compound, Derived identity
• Orphan Delete
• Persistent Domain Model API

The sample application shows essential build and packaging steps for both as

• a Swing-based JSE application and
• a typical Web Application Archive (*.war) ready to be deployed in a Java Enterprise container.

OpenBooks demonstrates few useful practices in domain modeling such as composite persistent relations,
isolating immutable state for better cache utilization, immutable relationship etc. Architecturally,
OpenBooks uses a design pattern to enable the same persistence service be used inside and outside
a managed environment. Such patterns vastly speeds up develop-test-debug cycle for persistence and
object-relation mapping functionality outside a container.

Availability

The source code and build script for OpenBooks is available in OpenJPA SubVersion repository

OpenBooks comes with a an Ant script to build.

under openjpa-examples/openbooks

To access the source code

$ cd /demo
svn co https://svn.apache.org/repos/asf/openjpa/trunk/openjpa-examples/openbooks^{Image Removed}
cd /demo/openbooks
cat index.html
ant package deploy
cd /deploy
ant -f run.xml run

Building

• Follow the instruction to build and run OpenBooks.
  These instructions can also be found also in [index.html at the OpenBooks root directory.

Here are few screen shots of OpenBooks running as a Swing Application.

Selecting and Purchasing Books

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Persistent Domain Model (as a Powerpoint Slide)

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Browsing the same domain model via Metamodel API

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