ObjectDB ObjectDB

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5

javax.persistence.EntityManager

has a version attribute, the persistence provider must perform optimistic version checks ... mode other than NONE is specified OptimisticLockException - if the optimistic version check fails ... has a version attribute, the persistence provider must perform optimistic version checks when obtaining
5

JPA Lifecycle Events

/persistence/orm_1_0.xsd" version="1.0"> <persistence-unit-metadata> <persistence-unit-defaults
5

Storing JPA Entity Objects

/ns/persistence/orm http://java.sun.com/xml/ns/persistence/orm_1_0.xsd" version="1.0
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JPA Persistable Types

serialization format will be inaccessible to future versions of ObjectDB on other platforms (e.g. .NET
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Is ObjectDB better than competing object databases?

for the Java Persistence API (JPA). It also supports a more recent and advanced version of the Java
5

Logical Operators in JPQL and Criteria API

the isTrue method. This is required because in the non binary version the factory methods accept
5

Index Definition

can only be defined on ordinary persistent fields (not on primary key / version fields). Composite Index
5

What are the system requirements for using ObjectDB?

ObjectDB requires Java 5 or later (Java 6 is preferred). As a pure Java application, ObjectDB should be able to run on any platform that supports the Java Standard Edition. Either the Java Development Kit (JDK) or the Java Runtime Environment (JRE) can be used. A version of ObjectDB for .NET is currently under development.
1

Spring MVC and JPA Tutorial

are stored in an ObjectDB database. This tutorial is available in the following versions: In addition, the demonstrated application is available as a Maven project:
0

[ODB1] Chapter 2 - A Quick Tour

as person.class: 1 <?xml version="1.0" encoding="UTF-8"?> 2 <!DOCTYPE jdo SYSTEM "http://java.sun

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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