On Fri, Oct 02, 2009 at 11:40:09PM -0700, m.harig wrote: > > Thanks Uwe Schindler , > > If i use an IndexReader[] to use MultiReader , will it be thread > safe? because i've to reopen my IndexReader to check whether my index is > updated or not . In this case how do i handle it? please suggest me
Hi, AFAIK readers are cloned when they are used inside MultiReader, so I guess reopening a single reader outside MultiReader has no effect and reopen on MultiReader reopen all the readers. So I think there is no way to reopen one specific reader inside a MultiReader without a new instance of the MultiReader. IMHO the easy way is to use MultiReader as a normal reader (with default constructor MultiReader(IndexReader... readers) ), forget the original readers and use reopen on the MultiReader. It should be thread-safe. You should check the sources for more complicated usage. > > > > Uwe Schindler wrote: > > > > Use MultiReader which is an IndexReader on top of various > > Sub-IndexReaders. > > > > ----- > > Uwe Schindler > > H.-H.-Meier-Allee 63, D-28213 Bremen > > http://www.thetaphi.de > > eMail: u...@thetaphi.de > > > >> -----Original Message----- > >> From: m.harig [mailto:m.ha...@gmail.com] > >> Sent: Friday, October 02, 2009 6:52 PM > >> To: java-user@lucene.apache.org > >> Subject: index reader for multiple indexes > >> > >> > >> hello all , > >> > >> am merging more than one indexes to search a document , how do i > >> use > >> IndexReader here to open multiple indexes? (since IndexReader will open > >> one > >> directory at a time) could any1 please suggest me? > >> > >> > >> -- > >> View this message in context: http://www.nabble.com/index-reader-for- > >> multiple-indexes-tp25716741p25716741.html > >> Sent from the Lucene - Java Users mailing list archive at Nabble.com. > >> > >> > >> --------------------------------------------------------------------- > >> To unsubscribe, e-mail: java-user-unsubscr...@lucene.apache.org > >> For additional commands, e-mail: java-user-h...@lucene.apache.org > > > > > > > > --------------------------------------------------------------------- > > To unsubscribe, e-mail: java-user-unsubscr...@lucene.apache.org > > For additional commands, e-mail: java-user-h...@lucene.apache.org > > > > > > > > -- > View this message in context: > http://www.nabble.com/index-reader-for-multiple-indexes-tp25716741p25726159.html > Sent from the Lucene - Java Users mailing list archive at Nabble.com. > > > --------------------------------------------------------------------- > To unsubscribe, e-mail: java-user-unsubscr...@lucene.apache.org > For additional commands, e-mail: java-user-h...@lucene.apache.org > -- David Causse Spotter http://www.spotter.com/ --------------------------------------------------------------------- To unsubscribe, e-mail: java-user-unsubscr...@lucene.apache.org For additional commands, e-mail: java-user-h...@lucene.apache.org
