Projects / db4o

db4o

db4o is an object database for Java and all .NET environments. Its features include ACID transactions, automatic class schema recognition, query-by-example, a S.O.D.A. object querying API, native queries, LINQ support on .NET, callback methods, memory files, cascade-on-delete, multi-threaded access, and Java Webstart and servlet support.

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Recent releases

  •  20 Feb 2011 18:05

    Release Notes: Improvements were made to the db4o Replication System (dRS) to also allow replication between db4o and Versant Object Database (VOD) in addition to db4o to db4o replication and to relational databases.

    •  20 Feb 2011 18:01

      Release Notes: Improvements were made to the db4o Replication System (dRS) to also allow replication between db4o and Versant Object Database (VOD) in addition to db4o to db4o replication and to relational databases.

      •  18 May 2010 03:35

        Release Notes: This development release features lightning fast operation with a new B-Tree Id system, a pluggable Id system, transparent activation for .NET collections, and more.

        •  10 Nov 2009 13:40

          Release Notes: This release comes with new monitoring support to collect runtime statistics about performance relevant behavior and state. Statistics are published through the Performance Counters API. You can now use the PerfMon monitoring tool to view graphed information about queries, the free space manager, the object reference system, IO, and networking. Since this is still a work in progress, you may expect to see changes in the API and the list of actual statistics supported.

          •  29 Oct 2009 20:12

            Release Notes: This release comes with new monitoring support to collect runtime statistics about performance relevant behavior and state. Statistics are published through Java Management Extensions (JMX). You can now use jconsole or a similar JMX monitoring tool to view graphed information about queries, the free space manager, the object reference system, IO, and networking. Since this is still a work in progress, you may expect to see changes in the API and the list of actual statistics supported.

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