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Posted to user@tuscany.apache.org by Amita Vadhavkar <am...@gmail.com> on 2007/07/15 20:13:29 UTC
Re: [DAS] XQuery-DAS
Hi,
Yes, Saxon was suggested by Ant also before and it has saxon-b as freeware.
Anybody please any comment on any licensing restrictions? Also I was just
giving a try to DB2 Express XQuery support. There are a couple of others
listed in June
15 mail, in this same thread. Saxon will be a good choice from XQJ
compliance point too.
(I will be able to upload a patch in 1-2 days time on the top of what
is there in
https://svn.apache.org/repos/asf/incubator/tuscany/sandbox/lresende/das/
with some documentation to continue design discussion)
Regards,
Amita
On 7/13/07, Doug Tidwell <dt...@us.ibm.com> wrote:
>
> Gang, how is XPath support implemented today? I've looked at the code
> briefly in the past, but couldn't make sense of it. I was hoping that
> XPath support came from the Xalan jar files. If that were true, it would
> be a SMOP to replace the Xalan XPath libraries with the Saxon libraries.
> Saxon supports XSLT 2.0, XPath 2.0 and XQuery.
>
> That's a straightforward approach to leveraging someone else's excellent
> work, although I don't know if Saxon's license would be compatible.
>
> Anyway, if somebody knows how XPath is implemented now, that would be a
> start towards figuring out how to plug in an XQuery engine.
>
> Cheers,
> -Doug
Re: [DAS] XQuery-DAS
Posted by Luciano Resende <lu...@gmail.com>.
Comments inline
On 7/18/07, Amita Vadhavkar <am...@gmail.com> wrote:
> Hi ,
> I am trying to summarize some updates on progress in XQuery DAS -
> extended the Service Provider framework to support invocation of
> different XQuery Implementations.
>
> Open Issues:-
> I am considering 2 alternative XQuery Implementations
>
> 1) DB2 Express
> - here my main concern is, is it possible to get any db2 jars under maven
> repo?
> - based on license, will there be any problems in getting this under maven
> repo?
> anybody any clue?
When connecting to DB2, what are the jars going to be used for ? I'd
imagine this scenario would be simmilar to regular RDB DAS connecting
to MySQL, where we give people the proper instructions to configure
their environment (e.g download JDBC driver) so DAS could work with.
>
> 2) Saxon
> Some plus points here are
> - it is following XQJ compliance (not completely)
> - there is a claim that Flat File as well as Database back end is supported.
>
> (I have come across problems when checking the database support in saxon-b,
> getting exception when I try to pass JDBC Connection in SaxonXQDataSource()
> constructor , looks like - not yet implemented - in Saxon)
>
> Some open issues are
> - 2 Saxon jars are required at minimal to use XQJ compliance - saxon8 and
> saxon8-xqj.
> (which are part of version 8.9), but the highest version I could see in
> maven repos
> was 8.7 and so 3 jars (including xqj) are missing too.
> > - So, either, we need to leave XQJ ((:), and use whatever is available in
> 8.7 or otherwise
> have a way to get the latest saxon version in maven repos. It will be great
> if latest 8.9
> saxon can appear in maven repo.
If we decide to use this libraries, we could contact the Saxon
community at sourceforge and check if they would upload the required
to maven. I'm not sure if we could directly try to work with maven
team to post these libraries to some maven repo.
>
> Regards,
> Amita
> On 7/15/07, Amita Vadhavkar <am...@gmail.com> wrote:
> >
> > Hi,
> > Yes, Saxon was suggested by Ant also before and it has saxon-b as
> > freeware.
> > Anybody please any comment on any licensing restrictions? Also I was just
> > giving a try to DB2 Express XQuery support. There are a couple of others
> > listed in June
> > 15 mail, in this same thread. Saxon will be a good choice from XQJ
> > compliance point too.
> > (I will be able to upload a patch in 1-2 days time on the top of what
> > is there in https://svn.apache.org/repos/asf/incubator/tuscany/sandbox/lresende/das/
> >
> > with some documentation to continue design discussion)
> >
> > Regards,
> > Amita
> >
> > On 7/13/07, Doug Tidwell < dtidwell@us.ibm.com> wrote:
> > >
> > > Gang, how is XPath support implemented today? I've looked at the code
> > > briefly in the past, but couldn't make sense of it. I was hoping that
> > > XPath support came from the Xalan jar files. If that were true, it
> > > would
> > > be a SMOP to replace the Xalan XPath libraries with the Saxon libraries.
> > > Saxon supports XSLT 2.0, XPath 2.0 and XQuery.
> > >
> > > That's a straightforward approach to leveraging someone else's excellent
> > > work, although I don't know if Saxon's license would be compatible.
> > >
> > > Anyway, if somebody knows how XPath is implemented now, that would be a
> > > start towards figuring out how to plug in an XQuery engine.
> > >
> > > Cheers,
> > > -Doug
> >
> >
> >
>
--
Luciano Resende
Apache Tuscany Committer
http://people.apache.org/~lresende
http://lresende.blogspot.com/
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Re: [DAS] XQuery-DAS
Posted by Amita Vadhavkar <am...@gmail.com>.
Hi ,
I am trying to summarize some updates on progress in XQuery DAS -
extended the Service Provider framework to support invocation of
different XQuery Implementations.
Open Issues:-
I am considering 2 alternative XQuery Implementations
1) DB2 Express
- here my main concern is, is it possible to get any db2 jars under maven
repo?
- based on license, will there be any problems in getting this under maven
repo?
anybody any clue?
2) Saxon
Some plus points here are
- it is following XQJ compliance (not completely)
- there is a claim that Flat File as well as Database back end is supported.
(I have come across problems when checking the database support in saxon-b,
getting exception when I try to pass JDBC Connection in SaxonXQDataSource()
constructor , looks like - not yet implemented - in Saxon)
Some open issues are
- 2 Saxon jars are required at minimal to use XQJ compliance - saxon8 and
saxon8-xqj.
(which are part of version 8.9), but the highest version I could see in
maven repos
was 8.7 and so 3 jars (including xqj) are missing too.
- So, either, we need to leave XQJ ((:), and use whatever is available in
8.7 or otherwise
have a way to get the latest saxon version in maven repos. It will be great
if latest 8.9
saxon can appear in maven repo.
Regards,
Amita
On 7/15/07, Amita Vadhavkar <am...@gmail.com> wrote:
>
> Hi,
> Yes, Saxon was suggested by Ant also before and it has saxon-b as
> freeware.
> Anybody please any comment on any licensing restrictions? Also I was just
> giving a try to DB2 Express XQuery support. There are a couple of others
> listed in June
> 15 mail, in this same thread. Saxon will be a good choice from XQJ
> compliance point too.
> (I will be able to upload a patch in 1-2 days time on the top of what
> is there in https://svn.apache.org/repos/asf/incubator/tuscany/sandbox/lresende/das/
>
> with some documentation to continue design discussion)
>
> Regards,
> Amita
>
> On 7/13/07, Doug Tidwell < dtidwell@us.ibm.com> wrote:
> >
> > Gang, how is XPath support implemented today? I've looked at the code
> > briefly in the past, but couldn't make sense of it. I was hoping that
> > XPath support came from the Xalan jar files. If that were true, it
> > would
> > be a SMOP to replace the Xalan XPath libraries with the Saxon libraries.
> > Saxon supports XSLT 2.0, XPath 2.0 and XQuery.
> >
> > That's a straightforward approach to leveraging someone else's excellent
> > work, although I don't know if Saxon's license would be compatible.
> >
> > Anyway, if somebody knows how XPath is implemented now, that would be a
> > start towards figuring out how to plug in an XQuery engine.
> >
> > Cheers,
> > -Doug
>
>
>
Re: [DAS] XQuery-DAS
Posted by Amita Vadhavkar <am...@gmail.com>.
Hi ,
I am trying to summarize some updates on progress in XQuery DAS -
extended the Service Provider framework to support invocation of
different XQuery Implementations.
Open Issues:-
I am considering 2 alternative XQuery Implementations
1) DB2 Express
- here my main concern is, is it possible to get any db2 jars under maven
repo?
- based on license, will there be any problems in getting this under maven
repo?
anybody any clue?
2) Saxon
Some plus points here are
- it is following XQJ compliance (not completely)
- there is a claim that Flat File as well as Database back end is supported.
(I have come across problems when checking the database support in saxon-b,
getting exception when I try to pass JDBC Connection in SaxonXQDataSource()
constructor , looks like - not yet implemented - in Saxon)
Some open issues are
- 2 Saxon jars are required at minimal to use XQJ compliance - saxon8 and
saxon8-xqj.
(which are part of version 8.9), but the highest version I could see in
maven repos
was 8.7 and so 3 jars (including xqj) are missing too.
- So, either, we need to leave XQJ ((:), and use whatever is available in
8.7 or otherwise
have a way to get the latest saxon version in maven repos. It will be great
if latest 8.9
saxon can appear in maven repo.
Regards,
Amita
On 7/15/07, Amita Vadhavkar <am...@gmail.com> wrote:
>
> Hi,
> Yes, Saxon was suggested by Ant also before and it has saxon-b as
> freeware.
> Anybody please any comment on any licensing restrictions? Also I was just
> giving a try to DB2 Express XQuery support. There are a couple of others
> listed in June
> 15 mail, in this same thread. Saxon will be a good choice from XQJ
> compliance point too.
> (I will be able to upload a patch in 1-2 days time on the top of what
> is there in https://svn.apache.org/repos/asf/incubator/tuscany/sandbox/lresende/das/
>
> with some documentation to continue design discussion)
>
> Regards,
> Amita
>
> On 7/13/07, Doug Tidwell < dtidwell@us.ibm.com> wrote:
> >
> > Gang, how is XPath support implemented today? I've looked at the code
> > briefly in the past, but couldn't make sense of it. I was hoping that
> > XPath support came from the Xalan jar files. If that were true, it
> > would
> > be a SMOP to replace the Xalan XPath libraries with the Saxon libraries.
> > Saxon supports XSLT 2.0, XPath 2.0 and XQuery.
> >
> > That's a straightforward approach to leveraging someone else's excellent
> > work, although I don't know if Saxon's license would be compatible.
> >
> > Anyway, if somebody knows how XPath is implemented now, that would be a
> > start towards figuring out how to plug in an XQuery engine.
> >
> > Cheers,
> > -Doug
>
>
>