PSPARQL Engine


Introduction

The PSPARQL engine is implemented in Java. It is provided with two main parsers: one for parsing RDF documents, and the other one for parsing PSPARQL queries.

Limitations

The PSPARQL engine is under development and some aspects of SPARQL are not yet implemented in the current version. These aspects are listed below:

  • Extension functions
  • Describe
  • Data Format

    PSPARQL engine is currently provided with a Turtle parser. So the RDF documents must be written in Turtle. However, other data fomats will be made available in the future versions.

    Demo Applet

    This applet needs a java browser (version 1.5 or later of JVM) to execute it. Once the applet is executed, you can enter a PSPARQL query in the Query text area and then click on the Send button.

                            Query.                                                  Output

    Downloads

    PSPARQL engine is available for downloads under (CeCILL) licence. Before starting the downloads, please read the README file.

    Downloads Version Date Requirements Limitations New features
    Download (C)PSPARQL engine! - version 3.0. 20/12/2007 JVM >=1.5 - version complete
    Download PSPARQL engine! - version 2.1. 11/10/2007 JVM >=1.5 - version complete
    Download PSPARQL engine! - version 2.0. 12/2/2007 JVM >=1.5 - version complete
    Download PSPARQL engine! - version 1.1. 7/2/2007 JVM >=1.5 limited to union of basic graph patterns -
    Download PSPARQL engine! - version 1.0. 20/12/2006 JVM >=1.5 no nested optional triples, and no named graphs -

                                                                                                                                                    


    Author: Faisal Alkhateeb, EXMO Project, 26/2/2007