I have some custom code that uses the top-level FieldCache (e.g., FieldCache.DEFAULT.getLongs(reader, "foobar", false)). I'd like to redesign this to use the per-segment FieldCaches so that re-opening a Searcher is fast(er). In most cases, I've got a docId and I want to get the value for a particular single-valued field for that doc.
Is there a good place to look to see example code of per-segment FieldCache use? I've been looking at PerSegmentSingleValuedFaceting, but hoping there might be something less confusing :) Also thinking DocValues might be a better way to go for me... is there any documentation or example code for that? -Michael
