ObjectDB version 2.7.6

Released on 2018-09-17 (see other available releases).

Note: A newer version is available.

Use of ObjectDB is subject to the ObjectDB Licence agreement
 

Changes in ObjectDB 2.7.6:

  • Added support of an option to disable broken reference cleaning in the Doctor (feature request #2341).
  • Added support of cascading delete using JDO (feature request #2329).
  • Added logging for "Failed to read from file" error (issue #2322).
  • Added an option for eager background purge of weak references (issue #2302).
  • Added support of filtering mapped-by (inverse) relationship results using a constraint.
  • Changed to-one mapped-by (inverse) relationship with multiple matching to always take the first.
  • Changed query optimisation to prefer set retrieval during query execution.
  • Improved eager fetch mechanism to avoid unnecessary repeated operations.
  • Improved performance of reflection mode (no enhancement) by minimising  tracking backups.
  • Improved concurrency by using lock free Synchronization (issue #2327).
  • Fixed a regression optimistic lock exception bug (due to fix of issue #2280).
  • Fixed a regression bug on remove and persist of an object in the same transaction (issue #2027).
  • Fixed a bug in UPDATE queries that modify more than 10000 objects (issue #2355).
  • Fixed a NullPointerException (issue #2302, post 43).

See the full change log.
 

ObjectDB with Maven

To use ObjectDB in your Java Maven project merge the following repositpory and dependencies into your pom.xml file:

    <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>2.7.6</version>
        </dependency>
        <dependency>
            <groupId>org.eclipse.persistence</groupId>
            <artifactId>javax.persistence</artifactId>
            <version>2.1.0</version>
        </dependency>
        <dependency>
            <groupId>javax.transaction</groupId>
            <artifactId>jta</artifactId>
            <version>1.1</version>
        </dependency>

            ...
    </dependencies>

ObjectDB 2.7.6 Maven files:

objectdb-2.7.6.jar objectdb-2.7.6.jar.md5 objectdb-2.7.6.jar.sha1
objectdb-2.7.6.pom objectdb-2.7.6.pom.md5 objectdb-2.7.6.pom.sha1

 

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.
  • Tutorial projects in Maven format for opening and running in your favourite IDE.
  • A sample objectdb.conf configuration file.
  • Source code of the JPA and JDO APIs.
  • JavaDoc of the JPA and JDO APIs.
  • The complete ObjectDB Manual in PDF format.