Top Downloads News Highlights

MedAptus Selects Perst Lite for Mobile Healthcare App on BlackBerry Smartphones. Get details.

Embedded database for Silverlight? Perst is the solution. Read the news, and check out our Silverlight database demo!

New Java Native Interface (JNI) for eXtremeDB provides fastest Java database solution for embedded and real-time enterprise systems.

eWeek: McObject Makes Play for Java Developers with New Interface.

Read about new eXtremeDB 4.0, our fastest, most scalable embedded database ever - and about two new customers, myYearbook and SCL Elements.

Article by Spirent Communications CTO explains eXtremeDB's critical role in network equipment test platform.

 
Printable Version

Perst Open Source Java Database / .NET Database Evaluation Software

Download an open source / evaluation copy of the Perst™ embedded database for Java or .NET. Complete documentation can be downloaded separately.

Contact us to learn about a commercial license for Perst.

Perst and Perst Lite for Java
Perst open source / dual license embedded database for Java.
The Perst for Java distribution is compatible with Google's Android platform, and also includes Perst Lite for Java ME.
Build 420. Updated January 18, 2010. Change history:

1. Support modification of persistent objects in onStore callback and overridden Persistent.store method
2. Support equality comparison operations for byte arrays in JSQL
3. Implement iterator for R-Tree returning neighbors in order of increasing distance
4. Optimize fixed size byte arrays in B-Tree index in Perst.Lite (FixedSize field modifier)
5. Support custom serializers by SerGen utility for Perst.Lite by means of the following annotations:
@serializable, @binary, @property
 

Perst for .NET (C#) and .NET Compact Framework
Perst open source / dual license embedded database for .NET (C#) and .NET Compact Framework.
Build 417. Updated January 18, 2010. Change history:

1. Support modification of persistent objects in OnStore callback and overridden Persistent.Store method
2. Implement iterator for R-Tree returning neighbors in order of increasing distance
3. Add Silverlight demo
 

Perst Data Sheet

Perst ProScout demo
ProScout is a sample Java ME midlet, based on Perst Lite, that helps a sports recruiter manage information on a mobile device. ProScout has been tested in the PhoneME, Nokia S40 and S60, and Blackberry environments. Includes Getting Started file and commented source code.

Perst for Silverlight CRM demo
This demo shows Perst for .NET in a Silverlight-based customer relationship management (CRM) system. The demo runs in the user’s browser, stores records locally, and takes full advantage of Perst features. Includes source code and article w/ extensively comments.

 

Asynchronous version of the Perst implementation of PolePosition

ACID version of the Perst implementation of PolePosition

TestIndex for Android
TestIndex is an Android-ready database benchmark application, with complete source code, that measures performance using Perst on Android, and Android’s bundled SQLite database system, performing the same tasks. Download TestIndex. (This download consists of the TestIndex benchmark application. Click here to obtain a report on TestIndex results in both in the Android emulator and in T-Mobile's G1 smartphone.)