To be honest Joe, what I know about IMAP search can be written on a postage stamp in inch high letters :) The Lucene thing may be the way to go as it may be faster, but require a translation layer between IMAP search & Lucene. I think the newer versions of Lucene are much better at sub-string matches nut I'm not sure. If we can use some of the existing skills that the Apache folk have, then great.
-- Jason > -----Original Message----- > From: Joe Cheng [mailto:[EMAIL PROTECTED] > Sent: 02 June 2005 19:37 > To: James Developers List > Subject: Re: Summer of code - IMAP > > Are you sure Lucene is appropriate for implementing IMAP search? As far > as I can tell, IMAP search is supposed to be a straight substring match, > whereas Lucene is designed to find tokens (as is any inverted-index > search strategy that I am aware of). Let me know if I need to elaborate > on this. > > Of course, we could conciously decide that James will have a fast but > technically non-compliant search facility instead of a slow but > compliant one... > > Jason Webb wrote: > > >I've had a slightly longer think about things and there is one critical > >piece of functionality that I won't have time to implement in the IMAP > >server: IMAP search. > > > >People have had ideas on this before so I suggest you look through the > mail > >archives, but here's a few thoughts for starters (a formal spec will come > >later if people are interested) > > > >The indexer must manage itself as far as is possible. (No admin) > >User message indexes must be kept separate. (Secure) > >Messages must be added to and deleted from the index as soon as is > >practical, but as a thread running as the lowest priority in James. > (Timely) > >The indexer must be able to read messages from any of the James > repository > >types (Generic) > >It would be nice to use Lucene (Apache) > > > >We deploy Lucene in very high-volume systems so I have a lot of > experience > >of the issues involved, but then so do the Lucene folks ;) > > > >I dropped the repository work as it is complex to explain, I don't know > >where I'm going with it yet and it's not an easy piece of work to parcel > up. > >I hope you will all agree that working with IMAP, Lucene and James will > be a > >lot more fun than being up to your elbows in the James internals. > > > >-- Jason > > > > > > --------------------------------------------------------------------- > To unsubscribe, e-mail: [EMAIL PROTECTED] > For additional commands, e-mail: [EMAIL PROTECTED] --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
