[xwiki-users] RE: Questions about the Lucene-plugin - xwiki-users@xwiki.org

22 May 2007

Sorry for my unclear expression! I'll try to rephrase my original questions:

- Is the capability to choose between sorting directions going to be implemented in the
lucene plugin?

- Is the default query type going to stay an OR-query? I would vote for AND by default and
at least there could be a possibility to choose between them on the api-level.

- Could it be possible to index all page data, it's object's properties and
attachment data into one lucenedoc so I would not get a separate hit for page, it's
object and attachment (if the search words are found in each of them). This feature makes
the paging impossible (see Michaels description below) if I want to show just one pagehit
regardless if searchwords are hit within the page itself or it's attachments or
objects. (I hope this was understandable...) Surely there are arguments for and against
but I would like hear yours. Or has somebody solved this issue perhaps somehow?

I've been customizing the plugin for my needs yet there are still some features
I'm working on. I'm willing to contribute if needed but on the other side, if
these features are going to be implemented in the plugin core anyway by somebody else I
could spare my time for something else.

Thanks,
Petteri

________________________________

Lähettäjä: THOMAS, BRIAN M (ATTSI) [mailto:bt0008@att.com]
Lähetetty: ti 22.5.2007 18:12
Vastaanottaja: xwiki-users(a)objectweb.org
Aihe: [xwiki-users] RE: Questions about the Lucene-plugin

I still have questions about how that's done:  Is there a tutorial on how to apply it,
or even a XAR to import a new search page?

Or is that what Petteri is asking for?

brain[sic] 

________________________________

	From: Karttunen Petteri [mailto:Petteri.Karttunen@kuopionkonservatorio.fi] 
	Sent: Tuesday, May 22, 2007 9:25 AM
	To: xwiki-users(a)objectweb.org
	Subject: RE: Questions about the Lucene-plugin

	Anybody?

________________________________

	Lähettäjä: Michael Guntli [mailto:michael.guntli@leica-geosystems.com]
	Lähetetty: to 10.5.2007 9:40
	Vastaanottaja: xwiki-users(a)objectweb.org
	Aihe: [xwiki-users] RE: Questions about the Lucene-plugin

	I hope xwiki will use the lucene search in future as default search engine! 
	At least just because of the result score.. 

	petteri.karttunen wrote: 
...

 I think  it's impossible to do the paging properly under the conditions 
 mentioned below. So I have a flat results view but I've done some efforts 
 for a compact and easily customizable search results view, which has 
 sorting and sort direction functionality. If you want to have it you 
 should also have my lucene-patches to support sorting directions and to do 
 AND-searches by default. 

 If you want I can send these all to you but maybe somebody of the project 
 team could shortly comment these issues before. If there is a roadmap with 
 the plugin I could also offer myself to be a contributor. Lucene-plugin 
 works 100X (well...almost) faster than regular xwiki-searches and is at 
 least at the moment the only possible choice in my xwiki-environment. 

 And by the way, many thanks for Ludovic and the whole team for great work! 

 Regards, 
 Petteri 

 ________________________________ 

 Lähettäjä: Michael Guntli [mailto:michael.guntli@leica-geosystems.com] 
 Lähetetty: ke 9.5.2007 11:12 
 Vastaanottaja: xwiki-users(a)objectweb.org 
 Aihe: [xwiki-users] RE: Questions about the Lucene-plugin 

 I had the same problem with post-filtering the search results. (there were 
 not all results displayed, and that caused a problem in a paged view (ex. 
 just 10 out of 30 on page1, 15 of 30 on page2..) 

 Maybe you can improve my lucene search page macro? 
 http://www.xwiki.org/xwiki/bin/view/Code/LuceneSearchPage 

 petteri.karttunen wrote: 

 About the "confusing" results: of course I can do some velocity- or 
 groovy 
 -post-processing on the page to filter out the duplicate document names 
 from results. This is no problem if I want to show the results as one 
 flat 
 list but it becomes quite complicated to do efficiently if I want to show 
 f.ex. 30 hits per page with paging. Basically I mean that all the index 
 data holded by one page (page content, objects, attachments...) should be 
 regarded as this page's properties and indexed under one lucenedoc. If I 
 operationally have understood something incorrectly, please correct me. 

 What do you think? 

 -Petteri 

 I'm testing the version RC1 and have some thoughts about the 
 Lucene-plugin: 

 Sorting 
 ------- 
 At the moment there is no method in the API to choose between the sorting 
 directions. I think there should be one. 

 Boolean Queries 
 --------------- 
 Is the default query-type going to stay an ORed one? Should it better be 
 an AND-query, like Google? I think most of the surfers expect that 
 nowadays. At least there could be method to choose between them. 

 Results 
 ------- 
 Search results are a bit confusing now. When I search for a word that 
 appears both in a document, in it's attachment and in it's object's 
 properties I get three hits. One for each type. There a special cases, of 
 course, but I think it would be more usable to get in my example case by 
 default just one hit. There would still remain a method ("type: object") 
 to distinguish between the types in a query.    

 If you like, I can provide patches for the two first (minor) issues. 

 Regards, 
 Petteri 

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