[LUCENE-3441] Add NRT support to facets

• Type: New Feature
• Status: Closed
• Priority: Minor
• Resolution: Fixed
• Fix Version/s: 4.1, 6.0
• Component/s: modules/facet
• Lucene Fields: New, Patch Available
• Assignee: Shai Erera
• Reporter: Shai Erera
• Created: 20/Sep/11 11:36
• Updated: 28/Aug/22 12:57
• Resolved: 21/Nov/12 19:52

Description

Currently LuceneTaxonomyReader does not support NRT - i.e., on changes to LuceneTaxonomyWriter, you cannot have the reader updated, like IndexReader/Writer. In order to do that we need to do the following:

1. Add ctor to LuceneTaxonomyReader to allow you to instantiate it with LuceneTaxonomyWriter.
2. Add API to LuceneTaxonomyWriter to expose its internal IndexReader
3. Change LTR.refresh() to return an LTR, rather than void. This is actually not strictly related to that issue, but since we'll need to modify refresh() impl, I think it'll be good to change its API as well. Since all of facet API is @lucene.experimental, no backwards issues here (and the sooner we do it, the better).

Issue Links

• contains: LUCENE-3793 Use ReferenceManager in DirectoryTaxonomyReader