public synchronized void commit() throws IcatException { try { int cached = iwriter.numRamDocs(); iwriter.commit(); if (cached != 0) { logger.debug( "Synch has committed " + cached + " changes to Lucene - now have " + iwriter.numDocs() + " documents indexed"); } } catch (IOException e) { throw new IcatException(IcatExceptionType.INTERNAL, e.getMessage()); } }