JPA Metamodel (JPA 2.0)

The JPA Metamodel API enables examining the classes, fields and properties of the persistent object model, similarly to the Java reflection API.

The JPA Metamodel API has a major role in defining queries using the JPA Criteria API.

Implementation of the JPA Metamodel API was just added to ObjectDB in version 2.1.1_01.

It will be officially supported and documented starting version 2.2, which is expected to be released later this month.

ObjectDB version 2.2.0 was just released with full support of the JPA Metamodel API, including complete test coverage and documentation.