Xapian discuss - Sep 2007 - Term Prefixes Question

Greetings All,

My team and I are implementing a project where some parts of an indexed 
document are private and others are public. We had assumed that 
prefixing the private terms with XPRIV would filter out those results 
from public searches. In other words, only searches for XPRIV terms woud 
return XPRIV results. Is this the case? If not, do you have any tips on 
how to implement this concept or one like it?

Many Thanks,

Keith Swallow

On Sep 18, 2007, at 12:59 AM, Keith Swallow wrote:
> Greetings All,
>
> My team and I are implementing a project where some parts of an  
> indexed document are private and others are public. We had assumed  
> that prefixing the private terms with XPRIV would filter out those  
> results from public searches. In other words, only searches for  
> XPRIV terms woud return XPRIV results. Is this the case? If not, do  
> you have any tips on how to implement this concept or one like it?
>
I think you need to have a term on public documents as well, and take  
measures to make sure that is always in your query. Or you could  
write a MatchDecider that decides if the query should see private  
documents or not I suppose.

By default a boolean term not being in the query does not invalidate  
the document. (Its presence in a query mandatories it in the  
documents, but not the opposite afaik)

- andreas