Hi Julian,
I meant I'm using Oak not Sing. Yes I'm using JCR API.

Marco.

On Fri, May 19, 2017 at 2:22 PM, Julian Sedding <[email protected]> wrote:

> Hi Marco
>
> On Fri, May 19, 2017 at 2:10 PM, Marco Piovesana <[email protected]>
> wrote:
> > Hi Julian, Michael and Robert
> > first of all thanks for the suggestions.
> > I'm using Oak directly inside my application,
>
> Do you mean you are not using the JCR API?
>
> > so I guess the Sling Pipes
> > are not something I can use, or not? Is the concept of Pipe already
> defined
> > in some way inside oak?
>
> No Oak has no such concept. Sling Pipes is an OSGi bundle that is
> unrelated to Oak but uses the JCR and Jackrabbit APIs (both are
> implemented by Oak).
>
> Regards
> Julian
>
> >
> > Marco.
> >
> > On Fri, May 19, 2017 at 10:39 AM, Julian Sedding <[email protected]>
> wrote:
> >
> >> Hi Marco
> >>
> >> It sounds like you are dealing with a JCR-based application and thus
> >> you should be using the JCR API (directly or indirectly, e.g. via
> >> Sling) to change your content.
> >>
> >> CommitHook is an Oak internal API that does not enforce any JCR
> >> semantics. So if you were to go down that route, you would need to be
> >> very careful not to change the content structure in a way  that
> >> essentially corrupts JCR semantics.
> >>
> >> Regards
> >> Julian
> >>
> >>
> >> On Tue, May 16, 2017 at 6:33 PM, Marco Piovesana <[email protected]>
> >> wrote:
> >> > Hi Tomek,
> >> > yes I'm trying to upgrade within the same repository type but I can
> >> decide
> >> > weather to migrate the repository or not based on what makes the
> upgrade
> >> > easier.
> >> > The CommitHooks can only be used inside an upgrade to a new
> repository?
> >> > What is the suggested way to apply backward-incompatible changes if i
> >> don't
> >> > want to migrate the data from one repository to another but I want to
> >> apply
> >> > the modifications to the original one?
> >> >
> >> > Marco.
> >> >
> >> > On Tue, May 16, 2017 at 4:04 PM, Tomek Rekawek
> <[email protected]
> >> >
> >> > wrote:
> >> >
> >> >> Hi Marco,
> >> >>
> >> >> the main purpose of the oak-upgrade is to migrate a Jackrabbit 2 /
> CRX2
> >> >> repository into Oak or to migrate one Oak node store (eg. segment) to
> >> >> another (like Mongo). On the other hand, it’s not a good choice to
> use
> >> it
> >> >> for the application upgrades within the same repository type. You
> didn’t
> >> >> mention if your upgrade involves the repository migration (in this
> case
> >> >> choosing oak-upgrade would be justified) or not.
> >> >>
> >> >> If you still want to use oak-upgrade, it allows to use custom
> >> CommitHooks
> >> >> [1] during the migration. They should be included in the class path
> with
> >> >> the ServiceLoader mechanism [2].
> >> >>
> >> >> Regards,
> >> >> Tomek
> >> >>
> >> >> [1] http://jackrabbit.apache.org/oak/docs/architecture/
> >> >> nodestate.html#The_commit_hook_mechanism
> >> >> [2] https://docs.oracle.com/javase/tutorial/sound/SPI-intro.html
> >> >>
> >> >> --
> >> >> Tomek Rękawek | Adobe Research | www.adobe.com
> >> >> [email protected]
> >> >>
> >> >> > On 14 May 2017, at 12:20, Marco Piovesana <[email protected]>
> >> wrote:
> >> >> >
> >> >> > Hi all,
> >> >> > I'm trying to deal with backward-incompatible changes on my
> repository
> >> >> > structure. I was looking at the oak-upgrade module but, as far as I
> >> could
> >> >> > understand, I can't really make modifications that require some
> logic
> >> >> (e.g.
> >> >> > remove a property and add a new mandatory property with a value
> based
> >> on
> >> >> > the removed one).
> >> >> > I saw that one of the options might be the "namespace migration":
> >> >> > - remap the current namespace to a different prefix;
> >> >> > - create a new namespace with original prefix;
> >> >> > - port all nodes from old namespace to new namespace applying the
> >> >> required
> >> >> > modifications.
> >> >> >
> >> >> > I couldn't find much documentation on the topic, so my question
> is: is
> >> >> this
> >> >> > the right way to do it? There are other suggested approaches to the
> >> >> > problem? There's already a tool that can be used to define how to
> map
> >> a
> >> >> > source CND definition into a destination CND definition and then
> apply
> >> >> the
> >> >> > modifications to a repository?
> >> >> >
> >> >> > Marco.
> >> >>
> >>
>



-- 

marco piovesanA
Enterprise Application



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