ObjectDB 2.5.0

Released on 2013-04-16 (see other available releases).

A newer version is available.

Use of ObjectDB is subject to the ObjectDB Licence. 

Changes in ObjectDB 2.5.0

• Added support of nested paths in JOIN FETCH.
• Added support of persisting collections and maps of user defined types.
• Added support of Google (Guava) collections.
• Added support of inheritance of ID fields.
• Added support of disabling detachment on rollback in JPA.
• Added support of using entity instead of a PK in find (retrieval by example).
• Added support of using list of literals in an query IN expression.
• Added the ability to disable hollow objects.
• Added TRACE level logging of query execution.
• Added a new temporary system property ("objectdb.temp.quick-file") to accelerate db opening and closing.
• Improved connecting and disconnecting performance when logging is disabled.
• Improved closing database time when recovery is disabled.
• Fixed hasSingleIdAttribute for partial primary key inheritance.
• Fixed a bug in JOIN FETCH.
• Fixed a bug in loading reference primary key field of an abstract type.
• Fixed JDO sequence names to be fully qualified names (issue #1074).
• Fixed accessing a package level JDO sequence using getSequence (issue #1074).
• Fixed false Doctor warnings when updating the schema using external classes.
• Fixed Doctor's index rebuilding to use NULL values for missing values of new fields.
• Fixed a bug in UPDATE queries.
• Fixed a bug in using the LIKE operator in queries with no wildcard characters.
• Fixed support of embedded objects comparison in queries.
• Fixed an ArrayIndexOutOfBoundsException in serializing entity objects.

See the full change log.

ObjectDB with Maven

To use ObjectDB in a Java Maven project add the ObjectDB repositpory and dependency to the pom.xml file.

Use Java 8 or above with the javax variant and Java 17 or above with the jakarta variant.

<repositories>
			...
	<repository>
		<id>objectdb</id>
		<name>ObjectDB Repository</name>
		<url>https://m2.objectdb.com</url>
	</repository>
			...
</repositories>
			...
<dependencies>
			...
	<dependency>
		<groupId>com.objectdb</groupId>
		<artifactId>objectdb</artifactId>
		<version>2.5.0</version>
	</dependency>
			...
</dependencies>

ObjectDB Development Kit

The ObjectDB Development Kit includes:

• The ObjectDB runtime JAR (available also on Maven).
• The GUI ObjectDB Explorer.
• Sample ObjectDB databases that you can open in the Explorer.
• Command line tools for running the ObjectDB Server and the ObjectDB Enhancer.
• A sample objectdb.conf configuration file.
• Source code of the Java / Jakarta Persistence API (JPA).
• JavaDoc of the Java / Jakarta Persistence API (JPA).
• The complete ObjectDB Manual in PDF format.