Thanks Mike. Your explanation was really helpful. I would use the IndexModifier class till the new IndexWriter class comes up. Thanks once again. -Vasu
Michael McCandless <[EMAIL PROTECTED]> wrote: > I am not very good at threading. So I was looking if there is any api class (even in nightly builds) on top of the IndexReader/IndexWriter that takes care of concurrency rules. This is exactly why IndexModifier was created (so you wouldn't have to worry about the details of closing/opening IndexReader/IndexWriter). There is also additional locking under the hood of those two classes that is abstracting away concurrency details so you don't have to worry about them. > Every developer must be facing this problem of concurrency while programming. Definitely. This is indeed one of the common sources of confusion about Lucene: the fact that you have to carefully open/close these two classes to do common operations is odd; the fact that you need an IndexReader to do deletes is "unexpected" (one would expect IndexWriter to do that). There is work underway to enable IndexWriter to [efficiently] handle deletes -- there's been alot of lively discussion on lucene-dev & several iterations on possible patches -- see here: http://issues.apache.org/jira/browse/LUCENE-565 But this is very much "in process" now. I don't know of anything else in the nightly builds (since 2.0) that address these issues yet. Mike --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] --------------------------------- Yahoo! Messenger with Voice. Make PC-to-Phone Calls to the US (and 30+ countries) for 2ยข/min or less.