[hibernate-dev] Hibernate web search

[Adam Warski]

Hello,

> in fact I was facing similar problems before, however the problem is  
> more of a Lucene problem than a Hibernate Search one.
Sure, but it doesn't mean HS can't solve it :)

> There are some threads regarding "error tolerant" query parsers on  
> the Lucene mailing list. There are several approaches to the problem.
> You could catch the ParseException and inspect the error message.  
> According to some post it should be possible to extract the cause of  
> the
> error from the excpetion and maybe modify the query. A simpler  
> approach might be to use QueryParser.escape() in case a  
> ParseException occurs and
> just escape the whole query string.
You're right, the parsing error is quite well described (not in string  
form, but "programatically") in the exception. So implementing what I  
wrote about earlier would be even easier that I suspected. I'll let  
you know when I'm done with it :).

> I think just using QueryParser.parse() out of the box is most of the  
> times not sufficient and you always have to write some custom code  
> around query
> generation and handling. The question is whether any custom parser  
> is generic enough to be used in a wide range of applications. I like  
> the idea of a google
> like query parser though. I wonder how Nutch is works in this area.
Well, as I wrote, I think that supporting Google-like queries would be  
a good "generic" parser. If the user builds a simple searchable  
website (with Seam) and wants a "search" box to search through his  
content such a parser would be what he expects to have in HS (unless  
his needs are that simple to just send a "site:www.mysite.com query"  
query to google :) ).

-- 
Adam