How to use

isEmpty

method

in

org.apache.cassandra.db.RangeTombstoneList

public boolean hasRanges()
{
  return ranges != null && !ranges.isEmpty();
}

public boolean hasRanges()
{
  return ranges != null && !ranges.isEmpty();
}

public boolean hasRanges()
{
  return ranges != null && !ranges.isEmpty();
}

public boolean hasRanges()
{
  return ranges != null && !ranges.isEmpty();
}

public boolean hasRanges()
{
  return ranges != null && !ranges.isEmpty();
}

/**
 * Returns whether this DeletionInfo is live, that is deletes no columns.
 */
public boolean isLive()
{
  return partitionDeletion.isLive() && (ranges == null || ranges.isEmpty());
}

@Override
public String toString()
{
  if (ranges == null || ranges.isEmpty())
    return String.format("{%s}", partitionDeletion);
  else
    return String.format("{%s, ranges=%s}", partitionDeletion, rangesAsString());
}

@Override
public String toString()
{
  if (ranges == null || ranges.isEmpty())
    return String.format("{%s}", partitionDeletion);
  else
    return String.format("{%s, ranges=%s}", partitionDeletion, rangesAsString());
}

/**
 * Returns whether this DeletionInfo is live, that is deletes no columns.
 */
public boolean isLive()
{
  return partitionDeletion.isLive() && (ranges == null || ranges.isEmpty());
}

@Override
public String toString()
{
  if (ranges == null || ranges.isEmpty())
    return String.format("{%s}", partitionDeletion);
  else
    return String.format("{%s, ranges=%s}", partitionDeletion, rangesAsString());
}

/**
 * Returns whether this DeletionInfo is live, that is deletes no columns.
 */
public boolean isLive()
{
  return partitionDeletion.isLive() && (ranges == null || ranges.isEmpty());
}

/**
 * Returns whether this DeletionInfo is live, that is deletes no columns.
 */
public boolean isLive()
{
  return topLevel.isLive() && (ranges == null || ranges.isEmpty());
}

/**
 * Returns whether this DeletionInfo is live, that is deletes no columns.
 */
public boolean isLive()
{
  return partitionDeletion.isLive() && (ranges == null || ranges.isEmpty());
}

@Override
public String toString()
{
  if (ranges == null || ranges.isEmpty())
    return String.format("{%s}", partitionDeletion);
  else
    return String.format("{%s, ranges=%s}", partitionDeletion, rangesAsString());
}

@Override
public String toString()
{
  if (ranges == null || ranges.isEmpty())
    return String.format("{%s}", topLevel);
  else
    return String.format("{%s, ranges=%s}", topLevel, rangesAsString());
}

/**
 * Purge every tombstones that are older than {@code gcbefore}.
 *
 * @param gcBefore timestamp (in seconds) before which tombstones should be purged
 */
public void purge(int gcBefore)
{
  topLevel = topLevel.localDeletionTime < gcBefore ? DeletionTime.LIVE : topLevel;
  if (ranges != null)
  {
    ranges.purge(gcBefore);
    if (ranges.isEmpty())
      ranges = null;
  }
}

private String rangesAsString()
{
  assert !ranges.isEmpty();
  StringBuilder sb = new StringBuilder();
  ClusteringComparator cc = ranges.comparator();
  Iterator<RangeTombstone> iter = rangeIterator(false);
  while (iter.hasNext())
  {
    RangeTombstone i = iter.next();
    sb.append(i.deletedSlice().toString(cc));
    sb.append('@');
    sb.append(i.deletionTime());
  }
  return sb.toString();
}

private String rangesAsString()
{
  assert !ranges.isEmpty();
  StringBuilder sb = new StringBuilder();
  ClusteringComparator cc = ranges.comparator();
  Iterator<RangeTombstone> iter = rangeIterator(false);
  while (iter.hasNext())
  {
    RangeTombstone i = iter.next();
    sb.append(i.deletedSlice().toString(cc));
    sb.append('@');
    sb.append(i.deletionTime());
  }
  return sb.toString();
}

private String rangesAsString()
{
  assert !ranges.isEmpty();
  StringBuilder sb = new StringBuilder();
  ClusteringComparator cc = ranges.comparator();
  Iterator<RangeTombstone> iter = rangeIterator(false);
  while (iter.hasNext())
  {
    RangeTombstone i = iter.next();
    sb.append(i.deletedSlice().toString(cc));
    sb.append('@');
    sb.append(i.deletionTime());
  }
  return sb.toString();
}

/**
 * Evaluates difference between this deletion info and superset for read repair
 *
 * @return the difference between the two, or LIVE if no difference
 */
public DeletionInfo diff(DeletionInfo superset)
{
  RangeTombstoneList rangeDiff = superset.ranges == null || superset.ranges.isEmpty()
                 ? null
                 : ranges == null ? superset.ranges : ranges.diff(superset.ranges);
  return topLevel.markedForDeleteAt != superset.topLevel.markedForDeleteAt || rangeDiff != null
     ? new DeletionInfo(superset.topLevel, rangeDiff)
     : DeletionInfo.live();
}