About mapping

api-jdo

addSubquery(sub, variableDeclaration, candidateCollectionExpression, parameters)

Add a subquery to this query.(Method of javax.jdo.Query)

 
api-jpa

javax.persistence.EntityManagerFactory

Interface used to interact with the entity manager factory for the persistence unit.(Interface of JPA)

 
api-jpa

javax.persistence.MapKeyJoinColumns

Supports composite map keys that reference entities.(Annotation of JPA)

 
release

2.4.0

Release date: 2012-05-20 Download (5.4 MB) Binary:  objectdb-2.4.0.zip You should start by following a  tutorial or reading the manual ...

 
manual

Database Connection using JPA

Describes the main JPA interfaces: EntityManagerFactory, EntityManager and EntityTransaction. Working with the Java Persistence API (JPA) consists of using the following interfaces: This page covers the following topics: Overview EntityManagerFactory EntityManager EntityTransac ...

 
manual

JPA Lifecycle Events

Explains how to use JPA lifecycle events (client side triggers) with callback methods and listener classes.... Currently, default listeners can only be specified in a mapping XML file because there is no equivalent annotation: ... > </entity-mappings > The mapping file has to be located either in the default location, ...

 
manual

Setting and Tuning of JPA Queries

Explains various JPA query settings - result range, flush and lock. The  Query javax.persistence.Query JPA interface Interface used to control query execution. See JavaDoc Reference Page... and  TypedQuery javax.persistence.TypedQuery JPA interface Inter ...

 
api-jpa

javax.persistence.EntityManager

Interface used to interact with the persistence context.(Interface of JPA)

 
release

2.3.5

Release date: 2011-12-21 Download (5.38 MB) Binary:  objectdb-2.3.5.zip You should start by following a  tutorial or reading the manual ...

 
manual

JPA Named Queries

Explains how to define and how to run JPA named queries.... Note: Named queries can be defined in JPA XML mapping files instead of using the @NamedQuery ... Page... annotation. ObjectDB supports JPA XML mapping files, including the definition of named queries. But, because mapping files are useful mainly for Object Relational Mapping (ORM) JPA ...