[LUCENE-6087] SearcherManager should accept foreign DirectoryReader on init

• Type: Improvement
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 5.0, 6.0
• Lucene Fields: New
• Assignee: Michael McCandless
• Reporter: Michael McCandless
• Created: 02/Dec/14 09:56
• Updated: 28/Aug/22 14:20
• Resolved: 02/Dec/14 14:55

Description

Today you init SearcherManager either with a dir or an IndexWriter,
but since we have a useful FilterDirectoryReader class to wrap the
sub-readers, it's useful for apps to also pass their own wrapped
DirectoryReader and have SearcherManager reopen from that.