EclipseLink Project

The Eclipse Java Persistence Platform will provide an extensible framework that will provide JPA, JAXB, and SDO persistence as well as customizations for other persistence mechanisms. The following initial component frameworks are planned:
EclipseLink-ORM will provide an extensible Object-Relational Mapping (ORM) framework with support for the Java Persistence API (JPA). It will provide persistence access through JPA as well as having extended persistence capabilities configured through custom annotations and XML. These extended persistence features include powerful caching (including clustered support), usage of advanced database specific capabilities, and many performance tuning and management options.
EclipseLink-OXM will provide an extensible Object-XML Mapping (OXM) framework with support for the Java API for XML Binding (JAXB). It will provide serialization services through JAXB along with extended functionality to support meet in the middle mapping, advanced mappings, and critical performance optimizations.
EclipseLink-SDO will provide a Service Data Object (SDO) implementation as well as the ability to represent any Java object as an SDO and leverage all of its XML binding and change tracking capabilities.
EclipseLink-DAS will provide an SDO Data Access Service (DAS) that brings together SDO and JPA.
EclipseLink-DBWS will provide a web services capability for developers to easily and efficiently expose their underlying relational database (stored procedures, packages, tables, and ad-hoc SQL) as web services. The metadata driven configuration will provide flexibility as well as allow default XML binding for simplicity.
EclipseLink-XR will deliver key infrastructure for situations where XML is required from a relational database. The metadata driven mapping capabilities of EclipseLink-ORM and EclipseLink-OXM are both leveraged for the greatest flexibility. Using this approach to XML-Relational access enables greater transformation optimizations as well as the ability to leverage the Eclipse Java Persistence Platform's shared caching functionality. While this capability is primary infrastructure for DBWS and DAS it will also be possible for consuming applications to leverage this directly.
EclipseLink-EIS provides support for mapping Java POJOs onto non-relational data stores using the Java Connector Architecture (JCA) API.