[Cosmo] iCalendar data queries

[Brian Moseley]

Cyrus Daboo wrote:

> After some more examination of Jackrabbit code I discovered that it was 
> possible to write indexers for arbitrary data formats. By default 
> Jackrabbit just ships with a text/plain indexer, but there are indexers 
> for PDF, Word, Excel etc in the contrib directory. So what I did was the 
> following:

i was aware of these components, but i spaced them and didn't realize 
this capability might be useful to us. i'm glad you found it!

> Upside: no need to store jcr properties for iCal data items, i.e. less 
> disk, lessmemory.

excellent.

> Downsides: requires code changes to Jackrabbit, introduces custom xpath 
> function, still does not address time-range. All text/calendar objects 
> are indexed even if they are not in calendar collections.

ok, we'll need to note that this is a portability issue, but i think 
it's probably worth the tradeoff.

> I think the Jackrabbit changes I have done should be general enough that 
> others might be interested in using them, so contribution back to 
> Jackrabbit ought to be OK.
> 

great.