[hibernate-dev] Spellchecker in HSearch

[Emmanuel Bernard]

Alright so John showed interest in the are. Go open a JIRA issue and  
let's keep the ball rolling,
--
Emmanuel Bernard
http://in.relation.to/Bloggers/Emmanuel | http://blog.emmanuelbernard.com 
  | http://twitter.com/emmanuelbernard
Hibernate Search in Action (http://is.gd/Dl1)

On  Sep 13, 2008, at 10:19, Emmanuel Bernard wrote:

> OK I looked at the SpellChecker code from the Lucene contrib) and  
> there is no trivial way to integrate it more nicely into Hibernate  
> Search. They did not really plan for flexibility.
>
> But it's doable to fork this code and make a spellchecker feature in  
> Hibernate Search. Here are a few limitations they have that we need  
> to remove. Here is a proposal.
>  - more than one field and even more than one index should be the  
> source of the dictionary
>  - declaring which field is part of a dictionary should be  
> declarative @AddToDictionary(name="main-dictionary") (with probably  
> an optional field name(s))
>  - for a given dictionary name, we need to associate an index and  
> probably a field prefix (to share the same index for all  
> dictionaries). This couold be by annotations or in the configuration  
> (not sure)
>  - this index should be kept like any other DirectoryProvider in the  
> HSearch intrastructure (we could then reuse ReaderProvider  
> internally and don't have leaks).
>  - we will probably add a manual dictionary reindex method and the  
> SpellChecker API should be in the SearchFactory.
>     sf.getDictionary("main-dictionary").spellcheck(word, suggestion);
>     sf.getDictionary("main-dictionary").spellcheck(word, suggestion,  
> entity, properties...); //not sure how useful is this one really
>     sf.getDictionary("main-dictionary").reindex();
>
> Of course this needs to be refined.
>
> This is probably 3 or 4 days of work but unfortunately we cannot do  
> that for the book it seems. I would be wort mentioning in the  
> section that a more integrated solution in on it's way.
>
> --
> Emmanuel Bernard
> http://in.relation.to/Bloggers/Emmanuel | http://blog.emmanuelbernard.com 
>  | http://twitter.com/emmanuelbernard
> Hibernate Search in Action (http://is.gd/Dl1)
>
> On  Sep 12, 2008, at 09:15, John Griffin wrote:
>
>>
>> Here's the file as a zip. Maybe the pdf wasn't passing.
>>
>> Also, Nermina pointed out to me that I skipped section 7.3. So ANY  
>> reference
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