ObjectDB 2.5.6

Released on 2014-06-17 (see other available releases).

A newer version is available.

Use of ObjectDB is subject to the ObjectDB Licence. 

Changes in ObjectDB 2.5.6

• Changed merge behavior (following this forum thread). 
• Fixed a TomEE - ObjectDB client-server integration issue (issue #1407).
• Fixed a ClassCastException on selecting an embedded ID field in queries.
• Fixed an exception (NullPointerException) in update queries (since 2.5.5_12).
• Fixed a NullPointerException in query compilation.
• Fixed a memory leak (Negative snapshot user count) in UPDATE queries on uncommitted changes (issue #1407).
• Fixed a memory leak in reflection mode (when using non enhanced classes).
• Fixed a bug of unexpected change of primary key type in UPDATE queries.
• Fixed some bugs in converting old ObjectDB 1.x database files to ObjectDB 2.x.
• Fixed a bug in comparing String based enum to  NULL in queries.
• Fixed an activation issue with hosteurope.de (issue #1413).
• Fixed "objectdb activation" query to work properly in client-server mode.
• Fixed enhancing class files that use INVOKE DYNAMIC.
• Fixed an error message in accessing a field of an unknown type in queries (issue #1417).

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>2.5.6</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.