How to use

notifyDeleting

method

in

org.apache.cassandra.db.lifecycle.Tracker

Map<SSTableReader, SSTableTidier> bulkObsoletion(Iterable<SSTableReader> sstables)
{
  if (!txnFile.isEmpty())
    throw new IllegalStateException("Bad state when doing bulk obsoletions");
  txnFile.addAll(Type.REMOVE, sstables);
  Map<SSTableReader, SSTableTidier> tidiers = new HashMap<>();
  for (SSTableReader sstable : sstables)
  {
    if (tracker != null)
      tracker.notifyDeleting(sstable);
    tidiers.put(sstable, new SSTableTidier(sstable, false, this));
  }
  return tidiers;
}

/**
 * Schedule a reader for deletion as soon as it is fully unreferenced.
 */
SSTableTidier obsoleted(SSTableReader reader)
{
  if (txnFile.contains(Type.ADD, reader))
  {
    if (txnFile.contains(Type.REMOVE, reader))
      throw new IllegalArgumentException();
    return new SSTableTidier(reader, true, this);
  }
  txnFile.add(Type.REMOVE, reader);
  if (tracker != null)
    tracker.notifyDeleting(reader);
  return new SSTableTidier(reader, false, this);
}

/**
 * Schedule a reader for deletion as soon as it is fully unreferenced.
 */
SSTableTidier obsoleted(SSTableReader reader, LogRecord logRecord)
{
  if (txnFile.contains(Type.ADD, reader, logRecord))
  {
    if (txnFile.contains(Type.REMOVE, reader, logRecord))
      throw new IllegalArgumentException();
    return new SSTableTidier(reader, true, this);
  }
  txnFile.add(logRecord);
  if (tracker != null)
    tracker.notifyDeleting(reader);
  return new SSTableTidier(reader, false, this);
}

/**
 * Schedule a reader for deletion as soon as it is fully unreferenced.
 */
SSTableTidier obsoleted(SSTableReader reader, LogRecord logRecord)
{
  if (txnFile.contains(Type.ADD, reader, logRecord))
  {
    if (txnFile.contains(Type.REMOVE, reader, logRecord))
      throw new IllegalArgumentException();
    return new SSTableTidier(reader, true, this);
  }
  txnFile.add(logRecord);
  if (tracker != null)
    tracker.notifyDeleting(reader);
  return new SSTableTidier(reader, false, this);
}