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34

CascadeType.PERSIST

Enum Constant javax.persistence.CascadeType PERSIST Cascade persist operation Since: JPA 1.0
34

CascadeType.REMOVE

Enum Constant javax.persistence.CascadeType REMOVE Cascade remove operation Since: JPA 1.0
34

CascadeType.ALL

Enum Constant javax.persistence.CascadeType ALL Cascade all operations Since: JPA 1.0
34

CascadeType.MERGE

Enum Constant javax.persistence.CascadeType MERGE Cascade merge operation Since: JPA 1.0
34

CascadeType.DETACH

Enum Constant javax.persistence.CascadeType DETACH Cascade detach operation Since: JPA 2.0
34

SharedCacheMode.UNSPECIFIED

Enum Constant javax.persistence.SharedCacheMode UNSPECIFIED Caching behavior is undefined: provider-specific defaults may apply. Since: JPA 2.0
34

SharedCacheMode.NONE

Enum Constant javax.persistence.SharedCacheMode NONE Caching is disabled for the persistence unit. Since: JPA 2.0
34

CriteriaBuilder.Trimspec.BOTH

Enum Constant javax.persistence.criteria.CriteriaBuilder.Trimspec BOTH Trim from both ends. Since: JPA 2.0
34

CriteriaBuilder.Trimspec.TRAILING

Enum Constant javax.persistence.criteria.CriteriaBuilder.Trimspec TRAILING Trim from trailing end. Since: JPA 2.0
3

IdGeneratorStrategy.NATIVE

Enum Constant javax.jdo.annotations.IdGeneratorStrategy NATIVE Since: JDO 2.1

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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Which JPA is Faster?

 

See a comparison of Hibernate, EclipseLink, OpenJPA, DataNucleus, MySQL, PostgreSQL, Derby, HSQLDB, DB4O by Versant, H2 Database, SQLite and ObjectDB

in the JPA Benchmark.

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.