How to use

close

method

in

org.apache.lucene.index.DirectoryReader

@Override
protected void doClose() throws IOException {
 in.close();
}

void setIndexReaderSearcher() throws IOException {
 FSDirectory index = FSDirectory.open(indexDir.toPath());
 if(reader == null){
  reader = DirectoryReader.open(index);
  searcher = new IndexSearcher(reader);
 }else{
  DirectoryReader newreader = DirectoryReader.openIfChanged(reader);
  if(newreader != null) {
   reader.close();
   reader = newreader;
   searcher = new IndexSearcher(reader);
  }
 }
}

static synchronized void setIndexReaderSearcher() {
 try{
 FSDirectory index = NIOFSDirectory.open(indexDir.toPath());
 if(reader == null){
  reader = DirectoryReader.open(index);
  searcher = new IndexSearcher(reader);
 }else{
  DirectoryReader newreader = DirectoryReader.openIfChanged(reader);
  if(newreader != null) {
   reader.close();
   reader = newreader;
   searcher = new IndexSearcher(reader);
  }
 }
 }catch(IOException e){
  throw new RuntimeException(e);
 }
}

ireader.close();
dir.close();

private synchronized void close() throws IOException {
  if (reader != null)
    reader.close();
  if (writer != null)
    writer.rollback();
}

@Override
protected void doClose() throws IOException {
 indexReader.close();
 taxoArrays = null;
 // do not clear() the caches, as they may be used by other DTR instances.
 ordinalCache = null;
 categoryCache = null;
}

@Override
protected void doClose() throws IOException {
 indexReader.close();
 taxoArrays = null;
 // do not clear() the caches, as they may be used by other DTR instances.
 ordinalCache = null;
 categoryCache = null;
}

 DirectoryReader oldReader = directoryReader;
DirectoryReader newReader = DirectoryReader.openIfChanged(directoryReader);
if ((newReader != null) & (oldReader != newReader)) {
  directoryReader = newReader;
  oldReader.close();
  // need to close the old one
} else {
  // nothing to do
}

@Override
protected void doClose() throws IOException {
 in.close();
}

@Override
protected void cleanup() throws IOException {
 if (indexReader != null)
   indexReader.close();
}

synchronized private DirectoryReader upToDateDirectoryReader() throws IOException {
  long changeToken = changeCounter.get();
  DirectoryReader oldDirReader = directoryReader;
  directoryReader = createDirectoryReader(oldDirReader, indexWriter);
  if (oldDirReader != null && oldDirReader != directoryReader) {
    oldDirReader.close();
  }
  changeCounter.compareAndSet(changeToken, 0);
  return directoryReader;
}

public void start() throws IOException {
 DirectoryReader reader = DirectoryReader.open(FSDirectory.open(_idxDir));
 try {
  _boboReader = BoboMultiReader.getInstance(reader);
 } catch (IOException ioe) {
  if (reader != null) {
   reader.close();
  }
 }
}

public void close() throws IOException {
  if (ireader != null) {
    ireader.close();
  }
  if (directory != null) {
    directory.close();
  }
}

public void close() {
  try {
    ireader.close();
    directory.close();
  } catch (IOException e) {
    log.error(e.getLocalizedMessage(), e);
  }
}

@Override
public void close() {
  try {
    ireader.close();
    directory.close();
  } catch (IOException e) {
    log.error(e.getLocalizedMessage(), e);
  }
}

@Override
public void close() {
  try {
    ireader.close();
    directory.close();
  } catch (IOException e) {
    log.error(e.getLocalizedMessage(), e);
  }
}

  public void close() throws IOException {

    if (iwriter != null) {
      iwriter.close();
    }

    if (ireader != null) {
      ireader.close();
    }
    if (directory != null) {
      directory.close();
    }
  }
}

/**
 * 停止服务
 */
public void stopService() {
  try {
    reader.close();
    directory.close();
    logger.info("gankhub stop service");
  } catch (IOException e) {
    e.printStackTrace();
  }
}

 DirectoryReader ireader=DirectoryReader.open(mDir);
IndexSearcher isearcher=new IndexSearcher(ireader);
QueryParser parser = new QueryParser(Version.LUCENE_46,myfieldname,analyzer);
parser.setDefaultOperator(QueryParser.Operator.AND);
parser.setPhraseSlop(0);
Query query=parser.createPhraseQuery(myfieldname,keyword);
ScoreDoc[] hits=isearcher.search(query, null, 1000).scoreDocs;
nret=hits.length;
ireader.close();

private static void closeIndexReader(DirectoryReader ireader) {
  try {
    if (ireader != null) {
      ireader.close();
      if (ireader.directory() != null) {
        ireader.directory().close();
      }
    }
  } catch (Exception e) {
    logger.error(null, e);
  }
}