Suppose some external program is able to change the index that you are searching.

How can you make sure your IndexSearcher object is up to date?

At the moment, we've solved this problem in the following way:

			

			private IndexSearcher getIndexSearcher()
			

			throws IOException {
			

			

			// check if update is necessary
			

			

			if ( _lastModified != getLastModified() ) {
			

			

			// close old searcher
			

			

			_searcher.close();
			

			

			

			_searcher = new IndexSearcher( _indexLocation );
			

			

			_lastModified = getLastModified();
			

			

			logger.debug( "index searcher [" + _indexLocation + "] was updated" );
			

			

			}
			

			

			

			return _searcher;
			

			

			}
			

			

		

Summarized: a new IndexSearcher object is initialized if the index is modified.

Is there a better way to handle this problem? Does the latest version of Lucene support this issue?