WebSphere Application Server persistence providers
Persistence providers are implementations of the Java™ Persistence API (JPA) specification and can be deployed in the Java EE compliant application server that supports JPA persistence.
About this task
The Enterprise JavaBeans (EJB) 3.0 and later specifications require that an application server container that supports the EJB 3.0 and later programming model must provide a JPA implementation. This is also referred to as a persistence provider.
The following persistence providers come bundled with the product:
- EclipseLink: This is the default Java™ Persistence API (JPA) 2.1 specification provider.
- WSJPA: This is the default Java™ Persistence API (JPA) 2.0 specification provider and an extension of the Apache OpenJPA provider implementation.
- Apache OpenJPA: This is an optional persistence provider that supports the Java™ Persistence API (JPA) 2.0 specification.
Note: If an explicit provider element is not specified in the persistence unit definitions, the
application server will use the default persistence provider, relative to the required JPA
specification.