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143

TransactionRequiredException(message)

Constructor javax.persistence.TransactionRequiredException TransactionRequiredException( String message ) Constructs a new TransactionRequiredException exception with the specified detail message. Parameters: message - the detail message. Since: JPA 1.0
143

TransactionRequiredException()

Constructor javax.persistence.TransactionRequiredException TransactionRequiredException() Constructs a new TransactionRequiredException exception with null as its detail message. Since: JPA 1.0
111

javax.persistence.TransactionRequiredException

javax.persistence Exception TransactionRequiredException java.lang.Object java.lang ... .persistence.PersistenceException javax.persistence.TransactionRequiredException ... but is not active. Since: JPA 1.0 TransactionRequiredException() Constructs a new
44

Deleting JPA Entity Objects

. A TransactionRequiredException is thrown if there is no active transaction when remove is called because operations that modify
44

JPA Exceptions

javax.persistence.TransactionRequiredException Exception Class Overview The root
44

Storing JPA Entity Objects

field values). A TransactionRequiredException is thrown if there is no active transaction when persist
25

Updating JPA Entity Objects

Explains how to use JPA to delete (remove) entity objects from the database.
22

javax.persistence.EntityManager

for that entity's primary key or is null TransactionRequiredException - if there is no transaction and a lock ... a valid type for that entity's primary key or is null TransactionRequiredException ... to the underlying database. Throws: TransactionRequiredException - if there is no transaction PersistenceException
19

Locking in JPA

. A TransactionRequiredException is thrown if there is no active transaction when lock is called because explicit locking requires
2

javax.jdo.JDOEntityManager

TransactionRequiredException - if there is no transaction and a lock mode other than NONE is specified ... : TransactionRequiredException - if there is no transaction IllegalArgumentException - if the instance is not a managed entity ... transaction. Throws: TransactionRequiredException - if there is no transaction Since: JPA 1.0 void

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, 2023  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.