Vinayak, in some other mail you indicated that there's little code around yet. So ...
Can we build this on top of StAX instead of Xerces (presumably SAX)? That allows a high performant impl on top of Axiom, which would be very useful for all projects that use Axiom (Axis2 & family, Synapse, Abdera, Tuscany (I think) etc.). The StAX impl will allow CXF also to make good use of this and should not affect the ability to build a DOM or DTM or any other model. I would also love to see the Axiom binding done as part of this project but that's not a requirement as that can be done externally. Hmm thinking a bit more I guess the use of Xerces is just for parsing the XQuery XML syntax bits right? You've obviously had to write a parser for the non-XML syntax bits (which is a lot)? So then this is really an easy request! Sanjiva. On Wed, May 13, 2009 at 9:49 PM, Vinayak Borkar <vbo...@yahoo.com> wrote: > Paul, > > Thank you for willing to be a mentor. > I have added you as a mentor to the proposal at > http://wiki.apache.org/incubator/VXQueryProposal. > > What would be the best way to get more > > 1. mentors > 2. feedback > > so we can move the proposal to a vote? > > > Thanks, > Vinayak > > > Paul Fremantle wrote: > >> Yes I am willing to be a mentor. >> >> Paul >> >> On Tue, May 12, 2009 at 7:57 PM, Vinayak Borkar <vbo...@yahoo.com> wrote: >> >>> Paul, >>> >>> Thank you for your interest in the VXQuery engine. We are looking for >>> mentors for the project. Would you be willing to be a mentor? >>> >>> Thanks, >>> Vinayak >>> >>> Paul Fremantle wrote: >>> >>>> Synapse would also be interested in using the XQuery implementation! >>>> >>>> Thanks >>>> Paul >>>> >>>> On Mon, May 11, 2009 at 7:22 PM, Vinayak Borkar <vbo...@yahoo.com> >>>> wrote: >>>> >>>>> Hello, >>>>> >>>>> We wish to present a proposal to create a new project in the incubator >>>>> called VXQuery. Please find below, the plain-text version of the >>>>> proposal. >>>>> Any feedback would be greatly appreciated. >>>>> >>>>> >>>>> Thanks, >>>>> Vinayak >>>>> >>>>> VXQueryProposal >>>>> Abstract >>>>> >>>>> Apache VXQuery is a language processor that implements the XML Query >>>>> Language v1.0 standardized by the W3C. >>>>> Proposal >>>>> >>>>> VXQuery (Versatile XQuery) will be a standards compliant XML Query >>>>> processor >>>>> implemented in Java. We believe that there exists a strong (and >>>>> growing) >>>>> need to process semi-structured data in many applications. The W3C >>>>> standardized v1.0 of the XML Query Language in early 2007. Since then, >>>>> a >>>>> few >>>>> processors have surfaced (both commercial and open source). VXQuery >>>>> will >>>>> implement this standard. >>>>> >>>>> VXQuery plans to be the glue that brings together imperative >>>>> programming >>>>> in >>>>> Java and declarative programming in XQuery. The project would enable >>>>> developers to use XQuery to navigate and transform application objects >>>>> declaratively in Java applications with minimal overhead. >>>>> >>>>> In the VXQuery project we plan to build an implementation that allows >>>>> users >>>>> to run declarative XQueries on arbitrary object models. Existing XQuery >>>>> engines execute queries by translating the user data into some form of >>>>> XML >>>>> Object model. With VXQuery, we take the opposing view - Translate the >>>>> query >>>>> to work natively on the user's object model. >>>>> >>>>> In addition, VXQuery works on top of different XML representations >>>>> including >>>>> DOM, Stax, and a space optimized model motivated by Xalan's DTM >>>>> (Document >>>>> Table Model). >>>>> >>>>> VXQuery will also provide a library that allows application developers >>>>> to >>>>> express declarative queries without the need to learn a new syntax. We >>>>> believe that this will speed up the adoption process. >>>>> Current Status >>>>> >>>>> This is a new project. >>>>> Meritocracy >>>>> >>>>> The initial developers are very familiar with meritocratic open source >>>>> development at Apache. Apache was chosen specifically because the >>>>> initial >>>>> developers want to encourage this style of development for the project. >>>>> Community >>>>> >>>>> VXQuery seeks to develop developer and user communities during >>>>> incubation. >>>>> Core Developers >>>>> >>>>> The core members of the project are diverse. Vinayak Borkar is an >>>>> independent consultant. Till Westmann works for a company that would be >>>>> a >>>>> potential consumer of VXQuery. During incubation the developers base >>>>> will >>>>> be >>>>> broadened. >>>>> Alignment >>>>> >>>>> XQuery is gaining more traction as a XML management technology and >>>>> there >>>>> already are several Apache projects ([WWW] XMLBeans, [WWW] Camel, [WWW] >>>>> Tuscany) that use or need a XQuery implementation. As no such >>>>> implementation >>>>> is available as an Apache project these projects have to rely on >>>>> external >>>>> engines. VXQuery can fill this gap and complement the XML support of >>>>> the >>>>> Apache Software Foundation. >>>>> Known Risks >>>>> Orphaned products >>>>> >>>>> VXQuery is new development. >>>>> Inexperience with Open Source >>>>> >>>>> The initial developers include long-time open source developers. >>>>> Vinayak >>>>> Borkar is an active contributor to the Zorba project at the FLWOR >>>>> foundation. >>>>> Relationships with Other Apache Products >>>>> >>>>> XMLBeans is a representation of XML that would be natively supported in >>>>> VXQuery. Therefore VXQuery can be used as an efficient and >>>>> Apache-licensed >>>>> implementation for the [WWW] selectPath and execQuery methods found in >>>>> XMLBeans. >>>>> >>>>> Similarly, [WWW] Tuscany's SDO implementation can be natively supported >>>>> and >>>>> VXQuery can be used to provide an [WWW] XQuery implementation for >>>>> Tuscany. >>>>> >>>>> VXQuery can also be used as an XQuery implementation for [WWW] Camel. >>>>> >>>>> Further, VXQuery uses the Xerces XML parser and schema validator. >>>>> A Excessive Fascination with the Apache Brand >>>>> >>>>> We believe in the processes, systems, and framework Apache has put in >>>>> place. >>>>> Apache is also known to foster a great community around their projects >>>>> and >>>>> provide exposure. While these points are important, they are not the >>>>> main >>>>> motivation for choosing Apache to host VXQuery. >>>>> Documentation >>>>> >>>>> Not publicly available >>>>> Initial Source >>>>> >>>>> Not publicly available >>>>> External Dependencies >>>>> >>>>> [WWW] JavaCC (BSD license), [WWW] Davos SDO implementation (Apache 2.0 >>>>> license), [WWW] Woodstox XML parser (Apache 2.0 license), [WWW] XStream >>>>> project (BSD license) >>>>> Required Resources >>>>> Developer and user mailing lists >>>>> >>>>> [MAILTO] vxquery-...@incubator.apache.org [MAILTO] >>>>> vxquery-us...@incubator.apache.org [MAILTO] >>>>> vxquery-comm...@incubator.apache.org >>>>> A subversion repository >>>>> >>>>> [WWW] https://svn.apache.org/repos/asf/incubator/vxquery >>>>> A JIRA issue tracker >>>>> >>>>> VXQuery (VXQUERY) >>>>> Initial Committers >>>>> >>>>> * >>>>> >>>>> Vinayak Borkar <vborky at yahoo dot com> >>>>> * >>>>> >>>>> Till Westmann <till at westmann dot org> >>>>> * >>>>> >>>>> Cezar Andrei <cezar at apache dot org> [Have CLA] >>>>> * >>>>> >>>>> Michael Carey <mjcarey at ics dot uci dot edu> >>>>> >>>>> Sponsors >>>>> >>>>> * >>>>> >>>>> XMLBeans PMC >>>>> >>>>> Champion >>>>> >>>>> * >>>>> >>>>> Cezar Andrei >>>>> >>>>> Nominated Mentors >>>>> >>>>> * >>>>> >>>>> Looking for mentors >>>>> >>>>> >>>>> --------------------------------------------------------------------- >>>>> To unsubscribe, e-mail: general-unsubscr...@incubator.apache.org >>>>> For additional commands, e-mail: general-h...@incubator.apache.org >>>>> >>>>> >>>>> >>>> >>>> >>> --------------------------------------------------------------------- >>> To unsubscribe, e-mail: general-unsubscr...@incubator.apache.org >>> For additional commands, e-mail: general-h...@incubator.apache.org >>> >>> >>> >> >> >> > > --------------------------------------------------------------------- > To unsubscribe, e-mail: general-unsubscr...@incubator.apache.org > For additional commands, e-mail: general-h...@incubator.apache.org > > -- Sanjiva Weerawarana, Ph.D. Founder, Director & Chief Scientist; Lanka Software Foundation; http://www.opensource.lk/ Founder, Chairman & CEO; WSO2, Inc.; http://www.wso2.com/ Member; Apache Software Foundation; http://www.apache.org/ Visiting Lecturer; University of Moratuwa; http://www.cse.mrt.ac.lk/ Blog: http://sanjiva.weerawarana.org/
