Important Notice: Our web hosting provider recently started charging us for additional visits, which was unexpected. In response, we're seeking donations. Depending on the situation, we may explore different monetization options for our Community and Expert Contributors. It's crucial to provide more returns for their expertise and offer more Expert Validated Answers or AI Validated Answers. Learn more about our hosting issue here.

Does Lucene allow searching and indexing simultaneously?

April 26, 2017indexing lucene searching simultaneously

0

10 Posted

Does Lucene allow searching and indexing simultaneously?

1 Answer

0

10 Posted

Yes. However, an IndexReader only searches the index as of the “point in time” that it was opened. Any updates to the index, either added or deleted documents, will not be visible until the IndexReader is re-opened. So your application must periodically re-open its IndexReaders to see the latest updates. The IndexReader.isCurrent() method allows you to test whether any updates have occurred to the index since your IndexReader was opened.