Well, this is already beyond my knowledge level. Any SMW developers care to comment?

-Yaron

On Tue, Mar 24, 2009 at 10:59 AM, Kai Kühn <kuehn@ontoprise.de> wrote:
We want SMW to use our implementation of the SMW storage layer
interface. The SMWHalo storage layer implementation delegates all calls
to the default implementation and extend some of them. But we need to
make sure that SMW will instantiate our implementation, thats why we
change $smwgDefaultStore (SMW_GlobalFunctions.php l. 589 ff):

function &smwfGetStore() {
       global $smwgMasterStore, $smwgDefaultStore, $smwgIP;

         ....

       if ($smwgMasterStore === NULL) {
           $smwgMasterStore = new $smwgDefaultStore();
       }
       return $smwgMasterStore;
   }


Kai

Yaron Koren schrieb:
> I don't understand - if you need to somehow indicate something about
> Halo's own data storage, why not create a separate variable for it?
> You're not actually modifying SMW's own data storage, I assume.
>
> -Yaron
>
>
> On Tue, Mar 24, 2009 at 10:14 AM, Kai Kühn <kuehn@ontoprise.de
> <mailto:kuehn@ontoprise.de>> wrote:
>
>     Other extensions do not extend SMW's storage layer. For example, we
>     added a triplestore. Do you know a way to extend SMW's storage layer
>     without changing that variable or patching SMW in any way?
>
>     Kai
>
>     Yaron Koren schrieb:
>     > That's ridiculous - extensions shouldn't modify global variables
>     that
>     > the user can set, especially not ones defined by other extensions.
>     >
>     > -Yaron
>     >
>     >
>     > On Tue, Mar 24, 2009 at 9:24 AM, Kai Kühn <kuehn@ontoprise.de
>     <mailto:kuehn@ontoprise.de>
>     > <mailto:kuehn@ontoprise.de <mailto:kuehn@ontoprise.de>>> wrote:
>     >
>     >     SMWHalo changes $smwgDefaultStore to SMWHaloStore2, because it
>     >     adds some
>     >     functionality to the update process. Change SD that it accepts
>     >     SMWHaloStore2 as a wrapper around SMWStoreSQL2. It's fully
>     compatible.
>     >
>     >     Kai
>     >
>     >
>     >     Yaron Koren schrieb:
>     >     > With some testing and private discussion, Valerio and I
>     >     uncovered the
>     >     > problem: the Halo extension seems to be either unsetting
>     or changing
>     >     > the value of the "$smwgDefaultStore" variable, which SD relies
>     >     on. If
>     >     > anyone from Halo is reading this, please be aware of the bug.
>     >     >
>     >     > -Yaron
>     >     >
>     >
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>     >
>     >
>     >
>     ------------------------------------------------------------------------------
>     >     Apps built with the Adobe(R) Flex(R) framework and Flex
>     >     Builder(TM) are
>     >     powering Web 2.0 with engaging, cross-platform capabilities.
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>     Professional Services
>     ontoprise GmbH - know how to use Know-how
>     ---
>     ontoprise ist Generalunternehmer für Vulcans Semantic Wiki im
>     Projekt Halo
>     http://www.ontoprise.de/index.php?id=33
>     ---
>     Amalienbadstraße 36 (Raumfabrik 29); 76227 Karlsruhe
>     Tel.: +49 (0) 721 509 809 48; Fax: +49 (0) 721 509 809 11
>     eMail: kuehn@ontoprise.de <mailto:kuehn@ontoprise.de>;  www:
>     http://www.ontoprise.de
>     Sitz der Gesellschaft: Amtsgericht Mannheim, HRB 109540
>     Geschäftsführer: Prof. Dr. Jürgen Angele, Dipl.Wi.-Ing. Hans-Peter
>     Schnurr
>
>
>     ------------------------------------------------------------------------------
>     Apps built with the Adobe(R) Flex(R) framework and Flex
>     Builder(TM) are
>     powering Web 2.0 with engaging, cross-platform capabilities.
>     Quickly and
>     easily build your RIAs with Flex Builder, the Eclipse(TM)based
>     development
>     software that enables intelligent coding and step-through debugging.
>     Download the free 60 day trial. http://p.sf.net/sfu/www-adobe-com
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--
Kai Kühn
Professional Services
ontoprise GmbH - know how to use Know-how
---
ontoprise ist Generalunternehmer für Vulcans Semantic Wiki im Projekt Halo
http://www.ontoprise.de/index.php?id=33
---
Amalienbadstraße 36 (Raumfabrik 29); 76227 Karlsruhe
Tel.: +49 (0) 721 509 809 48; Fax: +49 (0) 721 509 809 11
eMail: kuehn@ontoprise.de;  www: http://www.ontoprise.de
Sitz der Gesellschaft: Amtsgericht Mannheim, HRB 109540
Geschäftsführer: Prof. Dr. Jürgen Angele, Dipl.Wi.-Ing. Hans-Peter Schnurr


------------------------------------------------------------------------------
Apps built with the Adobe(R) Flex(R) framework and Flex Builder(TM) are
powering Web 2.0 with engaging, cross-platform capabilities. Quickly and
easily build your RIAs with Flex Builder, the Eclipse(TM)based development
software that enables intelligent coding and step-through debugging.
Download the free 60 day trial. http://p.sf.net/sfu/www-adobe-com
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