WebSphere eXtreme Scale Programming Guide > System APIs and plug-ins
Use eXtreme Scale with JPA
The Java™ Persistence API (JPA) is a specification that allows mapping Java objects to relational databases. JPA contains a full object-relational mapping (ORM) specification using Java language metadata annotations, XML descriptors, or both to define the mapping between Java objects and a relational database. A number of open-source and commercial implementations are available.
To use JPA, have a supported JPA provider, such as OpenJPA or Hibernate, JAR files, and a META-INF/persistence.xml file in the class path.
- Client-based JPA preload utility overview
The client-based Java Persistence API (JPA) preload utility loads data into eXtreme Scale backing maps using a client connection to the ObjectGrid.- JPA time-based data updater
A Java Persistence API (JPA) time-based database updater updates the ObjectGrid maps with the latest changes in the database.
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System APIs and plug-ins