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javax.persistence.EntityExistsException

of this information depends on the implementation, but the following example may be regarded as typical: java ... should generally include the backtrace for the cause. The format of this information depends
4

javax.persistence.NonUniqueResultException

data previously recorded by the method fillInStackTrace(). The format of this information depends ... include the backtrace for the cause. The format of this information depends on the implementation
4

javax.persistence.LockTimeoutException

of this information depends on the implementation, but the following example may be regarded as typical ... should generally include the backtrace for the cause. The format of this information depends
4

java.lang.RuntimeException

by the method fillInStackTrace(). The format of this information depends on the implementation ... for the cause. The format of this information depends on the implementation, but the following example
4

javax.persistence.NoResultException

of this information depends on the implementation, but the following example may be regarded as typical ... cause should generally include the backtrace for the cause. The format of this information depends
0

javax.jdo.JDOUnsupportedOptionException

recorded by the method fillInStackTrace(). The format of this information depends on the implementation ... for the cause. The format of this information depends on the implementation, but the following
0

javax.jdo.JDOUserCallbackException

(). The format of this information depends on the implementation, but the following example may be regarded ... of this information depends on the implementation, but the following example may be regarded as typical
0

printStackTrace()

the method fillInStackTrace(). The format of this information depends on the implementation ... . The format of this information depends on the implementation, but the following example may be regarded
0

printStackTrace()

the method fillInStackTrace(). The format of this information depends on the implementation ... . The format of this information depends on the implementation, but the following example may be regarded
0

printStackTrace()

the method fillInStackTrace(). The format of this information depends on the implementation ... . The format of this information depends on the implementation, but the following example may be regarded

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.