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Posted to dev@tuscany.apache.org by Luciano Resende <lu...@gmail.com> on 2007/07/19 21:45:14 UTC
[DAS] DAS & SDO
Hey
Kelvin gave as some head's up of upcoming changes that might affect
DAS [1] and [2] (Thanks Kelvin). I think there is also a JIRA
regarding integration with latest SDO 2.1 APIs [2] and the usage of
deprecated SDO APIs [4]. It would be great if someone could help on
getting these issues and JIRAs reviewed, and submit patches as needed.
[1] http://www.mail-archive.com/tuscany-dev%40ws.apache.org/msg20388.html
[2] http://www.mail-archive.com/tuscany-dev%40ws.apache.org/msg20369.html
[3] http://issues.apache.org/jira/browse/TUSCANY-986
[4] http://issues.apache.org/jira/browse/TUSCANY-961
--
Luciano Resende
Apache Tuscany Committer
http://people.apache.org/~lresende
http://lresende.blogspot.com/
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Re: [DAS] DAS & SDO
Posted by Amita Vadhavkar <am...@gmail.com>.
Please check patch for JIRA-961. A>,B>,C> is the approach followed.
Regards,
Amita
On 8/1/07, Amita Vadhavkar <am...@gmail.com> wrote:
>
> A>So far, RDB DAS was doing SDOUtil.createTypeHelper() during each
> construction of GraphBuilderMetadata(GBMD). This was resulting in a new
> instance fo TypeHelper for each new query execution. This is not
> required as the data model used during one runtime of DAS is constant.
>
> B>Using the new SDO APIs, we can do HelperProvider.getDefaultContext
> ().getTypeHelper()
> in this case to consistently use the same TypeHelper instance.
>
> C>Another question is, when a user extends ReadCommandImpl and also
> provide
> a static data model - like in - ReadCustomersStaticTypesCommand from test
> suite,
> and also uses a HelperContext different than DefaultContext to register
> the static Types,
> (please see,
> http://www.mail-archive.com/tuscany-dev@ws.apache.org/msg20743.html),
> then how to make DAS and thus GraphBuiilderMetaData aware of this new
> HelperContext.
> One simple solution will be providing a way through DASImpl to pass the
> helperContext
> to GraphBuilderMetaData, when it is not the DefaultContext.
> BaseCommandImpl,
> can hold ref to HelperContext instance and pass it to GBMD. GBMD will use
> passed
> HelperContext and in its absense will use the default one.
>
> D> Alternative to C> will be mandating user to use DefaultHelperContext?
>
> Please give comments.
>
> Regards,
> Amita
>
> On 7/20/07, Amita Vadhavkar <am...@gmail.com> wrote:
> >
> > Hi,
> > I have started checking the details and will consolidate my findings
> > here.
> >
> > Regards,
> > Amita
> >
> > On 7/20/07, Luciano Resende < luckbr1975@gmail.com> wrote:
> > >
> > > Hey
> > >
> > > Kelvin gave as some head's up of upcoming changes that might affect
> > > DAS [1] and [2] (Thanks Kelvin). I think there is also a JIRA
> > > regarding integration with latest SDO 2.1 APIs [2] and the usage of
> > > deprecated SDO APIs [4]. It would be great if someone could help on
> > > getting these issues and JIRAs reviewed, and submit patches as needed.
> > >
> > > [1]
> > > http://www.mail-archive.com/tuscany-dev%40ws.apache.org/msg20388.html
> > > [2] http://www.mail-archive.com/tuscany-dev%40ws.apache.org/msg20369.html
> > >
> > > [3] http://issues.apache.org/jira/browse/TUSCANY-986
> > > [4] http://issues.apache.org/jira/browse/TUSCANY-961
> > >
> > > --
> > > Luciano Resende
> > > Apache Tuscany Committer
> > > http://people.apache.org/~lresende<http://people.apache.org/%7Elresende>
> > > http://lresende.blogspot.com/
> > >
> > > ---------------------------------------------------------------------
> > > To unsubscribe, e-mail: tuscany-dev-unsubscribe@ws.apache.org
> > > For additional commands, e-mail: tuscany-dev-help@ws.apache.org
> > >
> > >
> >
>
Re: [DAS] DAS & SDO
Posted by Amita Vadhavkar <am...@gmail.com>.
A>So far, RDB DAS was doing SDOUtil.createTypeHelper() during each
construction of GraphBuilderMetadata(GBMD). This was resulting in a new
instance fo TypeHelper for each new query execution. This is not
required as the data model used during one runtime of DAS is constant.
B>Using the new SDO APIs, we can do HelperProvider.getDefaultContext
().getTypeHelper()
in this case to consistently use the same TypeHelper instance.
C>Another question is, when a user extends ReadCommandImpl and also provide
a static data model - like in - ReadCustomersStaticTypesCommand from test
suite,
and also uses a HelperContext different than DefaultContext to register the
static Types,
(please see,
http://www.mail-archive.com/tuscany-dev@ws.apache.org/msg20743.html),
then how to make DAS and thus GraphBuiilderMetaData aware of this new
HelperContext.
One simple solution will be providing a way through DASImpl to pass the
helperContext
to GraphBuilderMetaData, when it is not the DefaultContext. BaseCommandImpl,
can hold ref to HelperContext instance and pass it to GBMD. GBMD will use
passed
HelperContext and in its absense will use the default one.
D> Alternative to C> will be mandating user to use DefaultHelperContext?
Please give comments.
Regards,
Amita
On 7/20/07, Amita Vadhavkar <am...@gmail.com> wrote:
>
> Hi,
> I have started checking the details and will consolidate my findings here.
>
> Regards,
> Amita
>
> On 7/20/07, Luciano Resende <lu...@gmail.com> wrote:
> >
> > Hey
> >
> > Kelvin gave as some head's up of upcoming changes that might affect
> > DAS [1] and [2] (Thanks Kelvin). I think there is also a JIRA
> > regarding integration with latest SDO 2.1 APIs [2] and the usage of
> > deprecated SDO APIs [4]. It would be great if someone could help on
> > getting these issues and JIRAs reviewed, and submit patches as needed.
> >
> > [1]
> > http://www.mail-archive.com/tuscany-dev%40ws.apache.org/msg20388.html
> > [2] http://www.mail-archive.com/tuscany-dev%40ws.apache.org/msg20369.html
> >
> > [3] http://issues.apache.org/jira/browse/TUSCANY-986
> > [4] http://issues.apache.org/jira/browse/TUSCANY-961
> >
> > --
> > Luciano Resende
> > Apache Tuscany Committer
> > http://people.apache.org/~lresende<http://people.apache.org/%7Elresende>
> > http://lresende.blogspot.com/
> >
> > ---------------------------------------------------------------------
> > To unsubscribe, e-mail: tuscany-dev-unsubscribe@ws.apache.org
> > For additional commands, e-mail: tuscany-dev-help@ws.apache.org
> >
> >
>
Re: [DAS] DAS & SDO
Posted by Amita Vadhavkar <am...@gmail.com>.
Hi,
I have started checking the details and will consolidate my findings here.
Regards,
Amita
On 7/20/07, Luciano Resende <lu...@gmail.com> wrote:
>
> Hey
>
> Kelvin gave as some head's up of upcoming changes that might affect
> DAS [1] and [2] (Thanks Kelvin). I think there is also a JIRA
> regarding integration with latest SDO 2.1 APIs [2] and the usage of
> deprecated SDO APIs [4]. It would be great if someone could help on
> getting these issues and JIRAs reviewed, and submit patches as needed.
>
> [1] http://www.mail-archive.com/tuscany-dev%40ws.apache.org/msg20388.html
> [2] http://www.mail-archive.com/tuscany-dev%40ws.apache.org/msg20369.html
> [3] http://issues.apache.org/jira/browse/TUSCANY-986
> [4] http://issues.apache.org/jira/browse/TUSCANY-961
>
> --
> Luciano Resende
> Apache Tuscany Committer
> http://people.apache.org/~lresende
> http://lresende.blogspot.com/
>
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: tuscany-dev-unsubscribe@ws.apache.org
> For additional commands, e-mail: tuscany-dev-help@ws.apache.org
>
>