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2	javax.persistence.Persistence Persistence in Chapter 3 of the ObjectDB/JPA manual. EntityManagerFactory createEntityManagerFactory
2	javax.persistence.PreUpdate callback methods in Chapter 3 of the ObjectDB/JPA manual. This annotation is a marker annotation (with no elements).
2	javax.persistence.EmbeddedId embedded ID fields in Chapter 2 of the ObjectDB/JPA manual. This annotation is a marker annotation (with no elements).
2	javax.persistence.GeneratedValue value generation in Chapter 2 of the ObjectDB/JPA manual. String generator (Optional) The name
2	javax.persistence.Cache javax.persistence Interface Cache Interface used to interact with the second-level cache. If a cache is not in use, the methods of this interface have no effect, except for contains, which returns false. Since: JPA 2.0 Learn how to use Cache in Chapter 3 of the ObjectDB/JPA manual. boolean contains
2	javax.persistence.criteria.CriteriaBuilder . Since: JPA 2.0 Learn how to define queries using the criteria API in Chapter 4 of the ObjectDB/JPA manual
2	javax.persistence.Embeddable of the ObjectDB/JPA manual. This annotation is a marker annotation (with no elements).
2	javax.persistence.criteria.Expression . Since: JPA 2.0 Learn how to use JPA Criteria API's Expression in Chapter 4 of the ObjectDB/JPA manual
2	javax.persistence.NamedQuery named queries in Chapter 4 of the ObjectDB/JPA manual. QueryHint[] hints (Optional) Query properties
2	javax.persistence.PostRemove callback methods in Chapter 3 of the ObjectDB/JPA manual. This annotation is a marker annotation (with no elements).

Getting Started

ObjectDB is very easy to use. Follow the Getting Started Tutorial and the Quick Tour manual chapter and in minutes you may be able to write and run first Java programs against ObjectDB.

Prior knowledge or experience in database programming (SQL, JDBC, ORM, JPA, etc.) is not required, but some background in using the Java language is essential.

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Copyright © 2003, 2010, 2024 ObjectDB Software, all rights reserved. The JPA API Reference Documentation (JavaDoc) on this website is derived with some adjustments from the open source JPA 2 RI (EclipseLink) and is available under the terms of the Eclipse Public License, v. 1.0 and Eclipse Distribution License, v. 1.0. The JDO API Reference Documentation (JavaDoc) on this website is derived with some adjustments from the JDO 2.2 API and is available under the terms of the Apache License, v. 2.0. Images on this website are available under these licecnes. Documentation on this website explains how to use JPA in the context of the ObjectDB Object Database but mostly relevant also for ORM JPA implementations, such as Hibernate (and HQL), EclipseLink, TopLink, OpenJPA and DataNucleus. ObjectDB is not an ORM JPA implementation but an Object Database (ODBMS) for Java with built in JPA 2 support.