XBird is a light-weight XQuery processor and database system written in Java. The light-weight means reasonably fast and embeddable.

Features

XBird introduces the following features:

• XQuery Processor
• Native XML Database Engine
• Embeddable Database Engine
• Distributed XQuery Processor
• Support for HTML web page scraping

XBird is currently optimized for read-oriented workloads. It passes about 91% of the minimal conformance of XQuery Test Suite.

Documents

• User's Guide
1. Quick start
2. Database administration
3. HTML/XML web page scraping
4. Library dependency listing
• Developer's Guide
1. Running and accessing a database server -- Client/Server API
2. Programming with the XBird API -- XQuery processor API
3. Distributed query processing with XBird/D
4. XML/object binding and object persistence

Still work in progress. Check wiki pages for the progress.

Benefits

• Scalable to giga bytes.
• Can handle 1GB XML file with only 64MB memory (with its compression-enabled database, not with a file).
• Horizontal scalability can be ensured by distirbuted XQuery processing.
• Non-viral open source XQuery implementation. MPL/LGPL'd processor restricts a certain embedded use.

Support

• We will answer end-user questions through Google Groups. Google Groups has no-email delivery option.
• Please submit bug reports and feature requests to Issue Tracking. You can vote to your desired features by appending stars.
• Code review through svn browser is also welcome. Anyone also can post comments to the source codes through this svn browser.

Acknowledgment

• This project is sponsored in part by Information-technology Promotion Agency (IPA), Japan.
• YourKit is kindly supporting open source projects with its full-featured Java Profiler. YourKit, LLC is creator of innovative and intelligent tools for profiling Java and .NET applications. Take a look at YourKit's leading software products YourKit Java Profiler and YourKit .NET Profiler.