We would keep backward compatibility (new sedna would be able to work we
old clients), but some of new features would be unavailable with older
protocol versions. But new protocol clients wouldn't be able to operate
with older versions of Sedna; there will be new drivers/libsedna in Sedna
4.0.
Version of protocol would be 5.0 of course, we are trying not to break
anything up :)
New protocol contains new instructions for sedna management and nothing
should be messed up; there's nothing that we deleted
On Fri, Sep 14, 2012 at 1:47 AM, Charles Foster <char...@cfoster.net> wrote:
> Hi Олег,
>
> I was wondering what new protocol is going to ship with Sedna 4.0 and
> if it will be backward compatible with the Sedna 3.0 and 4.0 protocols
> [1] ?
>
> Kind Regards,
>
> Charles
>
> [1] http://www.sedna.org/serverprotocol/ClientServerProtocol.html
>
> On 13 September 2012 22:24, Олег Борисенко <a...@somestuff.ru> wrote:
> > Well, it's not ready yet and it's not a guarantee that everything would
> work
> > as expected. But we hope that we would be able to make the following:
> >
> > New numbering scheme. It should result in much smaller disk utilization.
> > Query optimizer. It should result in performance improvements for some
> types
> > of queries.
> > Reduction of semaphores usage.
> > Database wouldn't depend one on another. It something is wrong with one
> > database, it wouldn't crash others.
> > New front-end architecture:
> >
> > Database management become client-side --- you would need just to connect
> > se_gov to create/delete/start/stop databases
> > Asynchronious messaging protocol: it would be impossible to "hang" sedna
> > from outside
> > No need for pping
> > It would be possible to specify many interfaces that sedna is listening
> to.
> > It would be possible to start sedna as windows service natively.
> > New protocol
> > "Pool" of trn's: se_trn wouldn't die after each session. It would result
> in
> > much faster small transactions.
> > (maybe) diagnostic messaging channel for se_trn processes that would
> > indicate transactions progress.
> > (maybe not in v4.0 but v4.1) rest api
> > (maybe not in v4.0 but v4.1) some sort of embedded sedna
> > (maybe) openssl library for connections encryption
> > internal unit-tests and new testing system that should result in better
> code
> > quality
> > clang/llvm compiler support (it's working now too but we should check
> that
> > everything is okay)
> >
> >
> > I could forget something, but these are common new features that we are
> > working on :)
> >
> >
> > On Thu, Sep 13, 2012 at 9:14 PM, Flávio R. C. Sousa <
> flaviocso...@gmail.com>
> > wrote:
> >>
> >> What's new features in Sedna 4.0 ?
> >>
> >>
> >> On Thu, Sep 13, 2012 at 1:06 PM, Олег Борисенко <a...@somestuff.ru>
> wrote:
> >>>
> >>> We are working hard on Sedna 4.0 and it's not too simple to have a trip
> >>> anywhere at this moment :)
> >>>
> >>>
> >>> On Thu, Sep 13, 2012 at 5:29 PM, Charles Foster <char...@cfoster.net>
> >>> wrote:
> >>>>
> >>>> Will you be at XML Amsterdam on Wednesday?
> >>>>
> >>>> And will any other people who are on this list be there?
> >>>>
> >>>> On 13 September 2012 12:16, Robby Pelssers <robby.pelss...@nxp.com>
> >>>> wrote:
> >>>> > Hi Charles,
> >>>> >
> >>>> > Excellent suggestion. It's not the usual approach we take to set
> >>>> > properties but there's also nothing stopping me from storing XML in
> Sedna
> >>>> > containing properties.
> >>>> >
> >>>> > Brilliant workaround ;-)
> >>>> >
> >>>> > Thx,
> >>>> > Robby
> >>>> >
> >>>> > -----Original Message-----
> >>>> > From: charles.fos...@gmail.com [mailto:charles.fos...@gmail.com] On
> >>>> > Behalf Of Charles Foster
> >>>> > Sent: Thursday, September 13, 2012 12:52 PM
> >>>> > To: Robby Pelssers
> >>>> > Cc: sedna-discussion@lists.sourceforge.net
> >>>> > Subject: Re: [Sedna-discussion] question related to external global
> >>>> > variables
> >>>> >
> >>>> > Hi Robby,
> >>>> >
> >>>> > XQuery Library Modules (stored in Sedna) [1] can not have external
> >>>> > variables.
> >>>> > Only XQuery Main Modules (i.e. Ad-hoc queries) can have external
> >>>> > variables, you can bind these from the XQJ driver.
> >>>> >
> >>>> > You could set a constant variable in an XQuery Library Module.
> >>>> >
> >>>> > e.g.
> >>>> >
> >>>> > import module namespace constants =
> >>>> > "http://http://prod.nxp.com/constants";;
> >>>> >
> >>>> > declare function rdfutil:getURI($type as xs:string, $id as
> xs:string)
> >>>> > as xs:anyURI {
> >>>> > xs:anyURI(concat($constants:base_uri, "/id/", $type, "/",
> >>>> > rdfutil:normalizeIdentifier($id)))
> >>>> > };
> >>>> >
> >>>> > If you want flexibility, you could have an XQuery Library Module
> which
> >>>> > provided functions to read values (like a base-uri) from a XML
> >>>> > document existing in the Database.
> >>>> >
> >>>> > If you want to import no library module AND want for the variable
> like
> >>>> > $base-uri to exist for every single ad-hoc XQuery you invoke, you
> will
> >>>> > need to declare an external variable and bind via XQExpression or
> >>>> > XQPreparedExpression.
> >>>> >
> >>>> > Hope this helps.
> >>>> >
> >>>> > Regards,
> >>>> >
> >>>> > Charles
> >>>> >
> >>>> > [1] http://www.sedna.org/progguide/ProgGuidesu8.html#x14-570002.5.5
> >>>> >
> >>>> >
> >>>> > On 13 September 2012 11:15, Robby Pelssers <robby.pelss...@nxp.com>
> >>>> > wrote:
> >>>> >> Hi all,
> >>>> >>
> >>>> >> I've read that Sedna does not support external variables
> >>>> >> http://www.sedna.org/progguide/ProgGuidesu4.html
> >>>> >>
> >>>> >> But I have a function that needs to return a URI which is
> environment
> >>>> >> specific.
> >>>> >>
> >>>> >> declare function rdfutil:getURI($type as xs:string, $id as
> xs:string)
> >>>> >> as xs:anyURI {
> >>>> >> xs:anyURI(concat("http://prod.nxp.com";, "/id/", $type, "/",
> >>>> >> rdfutil:normalizeIdentifier($id)))
> >>>> >> };
> >>>> >>
> >>>> >> So ideally I want to use a global variable which I can set
> >>>> >> externally. (e.g. $base_uri)
> >>>> >>
> >>>> >> declare function rdfutil:getURI($type as xs:string, $id as
> xs:string)
> >>>> >> as xs:anyURI {
> >>>> >> xs:anyURI(concat($base_uri, "/id/", $type, "/",
> >>>> >> rdfutil:normalizeIdentifier($id)))
> >>>> >> };
> >>>> >>
> >>>> >> But Sedna won't allow me to deploy this module which is
> >>>> >> understandable as I reference a non declared variable
> >>>> >>
> >>>> >> Details: at (10:35), syntax error, unexpected ;, expecting := or as
> >>>> >> or external
> >>>> >>
> >>>> >>
> >>>> >> I could of course change the function signature to
> >>>> >> declare function rdfutil:getURI($base_uri as xs:string, $type as
> >>>> >> xs:string, $id as xs:string) as xs:anyURI {
> >>>> >> xs:anyURI(concat($base_uri, "/id/", $type, "/",
> >>>> >> rdfutil:normalizeIdentifier($id)))
> >>>> >> };
> >>>> >>
> >>>> >> But this would have to get propagated to ALL functions calling
> >>>> >> rdfutil:getURI, which more concretely would involve changing every
> single
> >>>> >> function as they all depend on this rdfutil:getURI (in)directly.
> >>>> >>
> >>>> >> As a side note,
> >>>> >>
> >>>> >> We are using the driver from Charles Foster but that won't help us
> in
> >>>> >> this case as this use case is about modules and not standalone
> xqueries used
> >>>> >> in our app.
> >>>> >>
> >>>> >> So besides the tedious solution of refactoring all function
> >>>> >> signatures, is there a simpler way?
> >>>> >>
> >>>> >> Thx in advance,
> >>>> >> Robby
> >>>> >>
> >>>> >>
> >>>> >>
> >>>> >>
> >>>> >>
> ------------------------------------------------------------------------------
> >>>> >> Live Security Virtual Conference
> >>>> >> Exclusive live event will cover all the ways today's security and
> >>>> >> threat landscape has changed and how IT managers can respond.
> >>>> >> Discussions
> >>>> >> will include endpoint security, mobile security and the latest in
> >>>> >> malware
> >>>> >> threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/
> >>>> >> _______________________________________________
> >>>> >> Sedna-discussion mailing list
> >>>> >> Sedna-discussion@lists.sourceforge.net
> >>>> >> https://lists.sourceforge.net/lists/listinfo/sedna-discussion
> >>>> >>
> >>>> >
> >>>> >
> >>>> >
> ------------------------------------------------------------------------------
> >>>> > Live Security Virtual Conference
> >>>> > Exclusive live event will cover all the ways today's security and
> >>>> > threat landscape has changed and how IT managers can respond.
> >>>> > Discussions
> >>>> > will include endpoint security, mobile security and the latest in
> >>>> > malware
> >>>> > threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/
> >>>> > _______________________________________________
> >>>> > Sedna-discussion mailing list
> >>>> > Sedna-discussion@lists.sourceforge.net
> >>>> > https://lists.sourceforge.net/lists/listinfo/sedna-discussion
> >>>> >
> >>>>
> >>>>
> >>>>
> ------------------------------------------------------------------------------
> >>>> Live Security Virtual Conference
> >>>> Exclusive live event will cover all the ways today's security and
> >>>> threat landscape has changed and how IT managers can respond.
> >>>> Discussions
> >>>> will include endpoint security, mobile security and the latest in
> >>>> malware
> >>>> threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/
> >>>> _______________________________________________
> >>>> Sedna-discussion mailing list
> >>>> Sedna-discussion@lists.sourceforge.net
> >>>> https://lists.sourceforge.net/lists/listinfo/sedna-discussion
> >>>
> >>>
> >>>
> >>>
> >>>
> ------------------------------------------------------------------------------
> >>> Live Security Virtual Conference
> >>> Exclusive live event will cover all the ways today's security and
> >>> threat landscape has changed and how IT managers can respond.
> Discussions
> >>> will include endpoint security, mobile security and the latest in
> malware
> >>> threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/
> >>> _______________________________________________
> >>> Sedna-discussion mailing list
> >>> Sedna-discussion@lists.sourceforge.net
> >>> https://lists.sourceforge.net/lists/listinfo/sedna-discussion
> >>>
> >>
> >>
> >>
> >> --
> >> Prof. Flávio R. C. Sousa
> >> Federal University of Ceara
> >> http://www.es.ufc.br/~flavio
> >>
> >
> >
> >
> ------------------------------------------------------------------------------
> > Live Security Virtual Conference
> > Exclusive live event will cover all the ways today's security and
> > threat landscape has changed and how IT managers can respond. Discussions
> > will include endpoint security, mobile security and the latest in malware
> > threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/
> > _______________________________________________
> > Sedna-discussion mailing list
> > Sedna-discussion@lists.sourceforge.net
> > https://lists.sourceforge.net/lists/listinfo/sedna-discussion
> >
>
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