Top Downloads News Highlights

Read the article, "On the Challenges and Opportunities of the IoT, Interview with Steve Graves". 

Register for the "Scaling IoT Applications Panel Discussion Part II - Industry Examples and Architecture" Webcast.

XtremeDB Financial Edition DBMS sweeps records in Big Data benchmark. Get details.

McObject accelerates eXtremeDB Cluster DBMS performance with Mellanox VMA. Read the press release.

New eXtremeDB 7.0 database system adds powerful features to cement its key role on the Internet of Things. Read the announcement.

Printable Version

Perst - An open source, object-oriented embedded database

Perst is McObject's open source, dual license, object-oriented embedded database system (ODBMS). It is available in one edition developed as an all-Java embedded database, and another implemented in C# (for Microsoft .NET Framework applications).

Perst gives developers the ability to sort, store and retrieve objects in their applications with maximum speed and with low memory and storage overhead, while leveraging the object-oriented paradigm of Java and C#.

Perst Features and Benefits
Perst Lite for Java ME (J2ME)
Overview: Perst Embedded Database Specification
In-Depth Information: Perst Introduction and Tutorial (PDF / 38 pages)
Performance Benchmarks: PolePosition and TestIndex
Perst for the Android and Windows Phone 7 (WP7) platforms
Perst for Silverlight - including Web-based CRM demo

(McObject also offers the eXtremeDB embedded database system, with a Java Native Interface designed to meet ultra-high performance requirements. With the core database engine written in C, eXtremeDB JNI offers maximum database speed and scalability, but is accessed entirely from within Java applications while working with Plain Old Java Objects, or POJOs).

Perst downloads:
Perst software (includes complete source code)
Perst documentation


Open Source, Dual Licensed

Whether you’re developing open source software or a proprietary, commercial product, McObject has Perst licensing options that fit.

Users can redistribute and/or modify Perst under the terms of the GNU General Public License version 3 (or earlier versions) as published by the Free Software Foundation.

For projects that don't fit under the GPL, a commercial license for Perst may be purchased from McObject. McObject also offers Perst product support.