Hey guys, I have a desire to order (field) facets by their order of
appearance in the search results.
When I first thought about it, I figured there would be some way to plug a
custom Comparator into FacetComponent and link it to facet.sort=rank or
something like that, but not only is there no real way to plug in a custom
sort (nor is subclassing the component feasible), the complexity is further
compounded by the fact faceting really only operates on the docset and so
scores aren't available. If max(score) was an attribute of a facetcount
object this type of sort could be done. sum(score) might also be
interesting for a weighted approach. I can imagine performance concerns
with doing this though. Operating on the doclist isn't enough because it's
only a slice of the results. What if I reduce my scope to only needing the
top 2 facets in order? It still seems to be just as complex because you
have to start from the first page and request an extra long docslice from
QueryComponent by hacking the start/rows params, and for all you know you
need to get to the last document to get all the facets.
So does anyone have any ideas of how to implement this? Maybe it isn't
even through faceting.
Ryan
