ebXML Persistence

This page describes GeoNetwork's implementation of a Persistence Layer to the ebXML Object Model.

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Introduction

The ebXML Object Model has the capability of being persisted to permanent storage (a database). In order to achieve a vendor-independent code base and to maintain the Object Oriented paradigm in the face of the Relational paradigm employed by databases, we use ​Hibernate as an Object/Relational Mapping tool. ​Hibernate was chosen over other solutions such as ​EJB 3.0 as that would require a J2EE container for runtime platform. We're not using the Hibernate framework within the confines of the ​JPA specification at this moment, although this is open to debate.

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Implementation details

Here is a list of design decisions regarding the Hibernate mapping.