Hi,
On Wed, Jul 4, 2012 at 7:27 AM, KÖLL Claus <[email protected]> wrote:
> I'm implementing at the moment a MultiDataStore and want to know if
> someone else is interested so i would provide a patch.
Sound useful. A somewhat similar case I've been thinking about is a
local datastore cache that could act as a decorator to another, remote
datastore backend. The MultiDataStore approach should be helpful in
implementing also something like that.
> The configuration could look like:
> <MultiDataStore class="org.apache.jackrabbit.core.data.MultiDataStore" >
> <primary>
> <DataStore class="org.apache.jackrabbit.core.data.db.DbDataStore">
This is the tricky bit, as our XML-based configuration mechanism isn't
very easy to adjust for such features.
Instead of extending the XML configuration format with yet another
custom structure, how about we allow the existing <param/> elements to
specify custom objects instead of just scalar values. That would turn
the above configuration to:
<DataStore class="org.apache.jackrabbit.core.data.MultiDataStore" >
<param name="primary"
class="org.apache.jackrabbit.core.data.db.DbDataStore">
...
</param>
<param name="archive" class="org.apache.jackrabbit.core.data.FileDataStore">
...
</param>
</DataStore>
Such a feature should come in handy also for many other custom
configuration needs.
BR,
Jukka Zitting
