[Xapian-devel] Re: [Xapian-commits] 9092: trunk/xapian-core/ trunk/xapian-core/api/ trunk/xapian-core/common/ trunk/xapian-core/include/xapian/

[Richard Boulton]

olly wrote:
> SVN root:       svn://svn.xapian.org/xapian
> Changes by:     olly
> Revision:       9092
> Date:           2007-06-30 15:16:16 +0100 (Sat, 30 Jun 2007)
> 
> Log message (2 lines):
> api/omdocument.cc,common/document.h,include/xapian/document.h:
> Add Xapian::Document::get_docid() method.

I was thinking that it would probably be useful to have a 
Xapian::Document::get_database_name() method, to allow the database that 
a document came from (in a multi-database situation) to be obtained.

For a Flint database, this would return the path that was used to open 
the database.  For a remote (TCP) database, it would return a string 
indicating the host and port that the database is at (probably in a 
pseudo URL form something like "remotetcp://host:port/"), and something 
similar for a remote progsrv database.  Not sure what an inmemory one 
would return...

Alternatively, databases could have a new "set_name()" method which sets 
the name to return (possibly with something like the above as the 
default) to avoid having to do long string compares to work out which 
database a document came from.

This would also be useful for the ErrorHandler mechanism (for reporting 
which database in a remote situation a failure occurred in).

-- 
Richard