Okay, Thanks a lot for answering my questions. I'll give the split string
thing a try :-) .

Best Regards

Jens Burkhardt



Grant Ingersoll-6 wrote:
> 
> 
> On Feb 21, 2008, at 6:53 AM, JensBurkhardt wrote:
>>
>> Hello again,
>>
>> Thanks for your immediate response. As i understand, the only way to  
>> boost
>> the values is on query side, right?
>> The Problem is, that i need to boost field values. Okay, some more  
>> details:
>> I need it for a library. The string in the field i'm working with is
>> something like "Title author year_of_publication some_catchwords"  
>> and so on.
>> It's like on big String.
>> This field is called "Free-Text" so the query can something like  
>> "author AND
>> title".
>> And that's the point, the order of the search terms is arbitrary so  
>> i don't
>> know what i do boost in the field. If i want to boost the title i  
>> need to
>> boost the specific value in the Free-Text field.
>> If I'm wrong and i can handle this problem with using payload, could  
>> someone
>> please explain it cause i don't understand how to use payload on  
>> index side.
>>
> 
> I would split the string (either ahead of time or by writing your own  
> TeeTokenFilter and SinkTokenizer) such that you can separate out your  
> one big String into two smaller fields.  Other option, is to use  
> payloads
> 
> Token.setPayload() is how you set payloads.  There are a couple  
> examples in 2.3 in the contrib/analysis package of how to add payloads  
> for specific things, you would just need your own that recognized your  
> structure.
> 
> Also have a look at Michael B's excellent ApacheCon slides:
> http://people.apache.org/~buschmi/apachecon/AdvancedIndexingLuceneAtlanta07.ppt
> 
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