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Posted to slide-dev@jakarta.apache.org by Eirikur Hrafnsson <ei...@idega.is> on 2005/01/04 15:47:42 UTC

How to use Lucene in Slide? A few "easy" questions...

1. What version of Slide and Lucene do I need to add Lucene indexing to 
my Slide store? There seems be some Lucene stuff in Slide 2.1...

2. How do I activate the indexing?

3. Can I have seperate indexes for different URI's?
E.g. I would like to have one index for my articles (xml based docs) 
under '/files/cms/articles/....' and possibly a custom indexer (search 
document)
And another index for all other documents (Word,excel,pdf etc.) under 
'/files/cms/documents/...'
My goal is to have a web based search with "Spotlight" like search 
results categorizing.

4. How do I do a search in code if I have the query string?

Best Regards

Eirikur S. Hrafnsson, eiki@idega.is
Chief Software Engineer
Idega Software
http://www.idega.com


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Re: How to use Lucene in Slide? A few "easy" questions...

Posted by Eirikur Hrafnsson <ei...@idega.is>.

Hi Stefan

On 4.1.2005, at 15:25, Stefan Lützkendorf wrote:

> Hello Eirikur
>
>> 1. What version of Slide and Lucene do I need to add Lucene indexing 
>> to my Slide store? There seems be some Lucene stuff in Slide 2.1...
> the stuff in 2.1 is rather experimental, I think. In 2.2 (on the cvs 
> HEAD available) it will be much more complete, I hope.
Is the HEAD safe to use? Do you know when the first beta (or better) 
release will be for 2.2? Seems to me that we are starting to need 2.2 
:)

>> 2. How do I activate the indexing?
> For the stuff in 2.2 there is some doc under
> http://wiki.apache.org/jakarta-slide/DaslConfiguration
Ok I will study that.

>> 3. Can I have seperate indexes for different URI's?
>> E.g. I would like to have one index for my articles (xml based docs) 
>> under '/files/cms/articles/....' and possibly a custom indexer 
>> (search document)
>> And another index for all other documents (Word,excel,pdf etc.) under 
>> '/files/cms/documents/...'
> You will have a single index for each store you want to be indexed.
> Separation of different subtrees you can made via your DASL query. 
> There you give a scope, i.e. the subtree you want to search.
> If you want to have different indexes, you might want to separate the 
> docs in different Stores.
Ok using a DASL search with different scopes will work for me I think. 
I don't want to divide up my store.

However does one always use a DASL search to search and not Lucene 
directly by
creating a IndexSearcher, analyzers if needed and and a query and 
calling search(query)?
Like so:
...
	IndexSearcher searcher = new 
IndexSearcher(reader.getReader(indexPath));
	Analyzer analyzer = new StopAnalyzer();
	BooleanQuery query = new BooleanQuery();
...
	hits = searcher.search(query);

>> My goal is to have a web based search with "Spotlight" like search 
>> results categorizing.
> Do you mean something like scoring or ranking? This is currently not 
> available through DASL. Thats still a TODO.
No not a ranking system but a multiple search system like OSX 10.4 
"Spotlight" feature or like QuickSilver (best osx app ever ;)
In our web platform (IdegaWeb) we have many different things we want to 
search at the same time and display the results categorized like so:

Pages:
...results from our Lucene based webcrawler
Articles:
...results from Slide's Lucene indexing
Documents:
...results from Slide's Lucene indexing
	(possibly even such categorized by content type like:)
	Pdf's
		...
	Word docs
		...
	Images
		...
Contacts:
...results from our user/group/role system via sql or ldap search.
--------------

Can the standard Slide indexing, index anything more than text files? 
Can it e.g. index pdf's or MS Office docs?

>> 4. How do I do a search in code if I have the query string?
> The WebdavResource currently does not have a search method. But you 
> can use the SearchMethod class.
Ok so that is the standard way of doing a DASL search? It would be nice 
to have access to that Method in WebdavResource like almost everything 
else.

Thanks for the quick response!

-Eirikur, Idega.


> DASL support is still under development as you see (:-)
>
> Regards, Stefan
>
>
> -- 
> Stefan Lützkendorf  --  luetzkendorf@apache.org
>
>
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> To unsubscribe, e-mail: slide-dev-unsubscribe@jakarta.apache.org
> For additional commands, e-mail: slide-dev-help@jakarta.apache.org
>
>
>
Best Regards

Eirikur S. Hrafnsson, eiki@idega.is
Chief Software Engineer
Idega Software
http://www.idega.com


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Re: How to use Lucene in Slide? A few "easy" questions...

Posted by Eirikur Hrafnsson <ei...@idega.is>.

Hi Stefan,

hope you have time to answer my last post in this thread but I have one 
question about the indexes in Slide.
I see there is a property indexer and then a content indexer. If I do a 
DASL search will it use both indexes?

-Eiki

On 4.1.2005, at 15:25, Stefan Lützkendorf wrote:

> Hello Eirikur
>
>> 1. What version of Slide and Lucene do I need to add Lucene indexing 
>> to my Slide store? There seems be some Lucene stuff in Slide 2.1...
> the stuff in 2.1 is rather experimental, I think. In 2.2 (on the cvs 
> HEAD available) it will be much more complete, I hope.
>> 2. How do I activate the indexing?
> For the stuff in 2.2 there is some doc under
> http://wiki.apache.org/jakarta-slide/DaslConfiguration
>> 3. Can I have seperate indexes for different URI's?
>> E.g. I would like to have one index for my articles (xml based docs) 
>> under '/files/cms/articles/....' and possibly a custom indexer 
>> (search document)
>> And another index for all other documents (Word,excel,pdf etc.) under 
>> '/files/cms/documents/...'
> You will have a single index for each store you want to be indexed.
> Separation of different subtrees you can made via your DASL query. 
> There you give a scope, i.e. the subtree you want to search.
> If you want to have different indexes, you might want to separate the 
> docs in different Stores.
>> My goal is to have a web based search with "Spotlight" like search 
>> results categorizing.
> Do you mean something like scoring or ranking? This is currently not 
> available through DASL. Thats still a TODO.
>> 4. How do I do a search in code if I have the query string?
> The WebdavResource currently does not have a search method. But you 
> can use the SearchMethod class.
>
> DASL support is still under development as you see (:-)
>
> Regards, Stefan
>
>
> -- 
> Stefan Lützkendorf  --  luetzkendorf@apache.org
>
>
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: slide-dev-unsubscribe@jakarta.apache.org
> For additional commands, e-mail: slide-dev-help@jakarta.apache.org
>
>
>
Best Regards

Eirikur S. Hrafnsson, eiki@idega.is
Chief Software Engineer
Idega Software
http://www.idega.com


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