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8

JBoss 7 startup fails

] (DeploymentScanner-threads - 1) {"Composite operation failed and was rolled back. Steps that failed:" => {"Operation
8

JBOSS AS7 7.1.1 - Entity not persisted and createNamedQuery fire exception

.scanner] (DeploymentScanner-threads - 1) {"JBAS014653: Composite operation failed and was rolled
1

ObjectDB 2.4.0

collision. Improved BIRT support (issue #659). Improved evaluation of query plans that use composite
1

ObjectDB 2.5.5

. Fixed query execution issues with using composite indexes. Fixed a bug in using LIKE operator in
1

queries more than 10 times slower using 2.8.1 versus 2.7.6

= 0 and o.state = 0) Therefore, the optimal query starts by using the composite index "ctso

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.