9714: trunk/xapian-core/ trunk/xapian-core/common/ trunk/xapian-core/matcher/

SVN root:       svn://svn.xapian.org/xapian
Changes by:     richard
Revision:       9714
Date:           2007-11-23 10:28:32 +0000 (Fri, 23 Nov 2007)

Log message (10 lines):
common/stats.h,matcher/bm25weight.cc,matcher/localmatch.cc,
matcher/tradweight.cc: Remove the Xapian::Weight::Internal
get_total_* methods: instead, add a get_total_stats() method
which returns a Stats object representing the whole collection.
Add get_termfreq() and get_reltermfreq() convenience methods to
Stats for looking up individual term's statistics.  Also, change
protected members of Xapian::Weight::Internal to private members,
since we're no longer subclassed.  Also, in tradweight.cc, avoid
division by zero in the (rare) situation of the average length
being zero; in the same way as this is handled by bm25weight.cc.

Modified files:
U   trunk/xapian-core/ChangeLog
U   trunk/xapian-core/common/stats.h
U   trunk/xapian-core/matcher/bm25weight.cc
U   trunk/xapian-core/matcher/localmatch.cc
U   trunk/xapian-core/matcher/tradweight.cc

Links:
http://xapian.org/C?9714
http://xapian.org/C?9714?trunk/xapian-core/ChangeLog
http://xapian.org/C?9714?trunk/xapian-core/common/stats.h
http://xapian.org/C?9714?trunk/xapian-core/matcher/bm25weight.cc
http://xapian.org/C?9714?trunk/xapian-core/matcher/localmatch.cc
http://xapian.org/C?9714?trunk/xapian-core/matcher/tradweight.cc