How to use

openWithIndex

method

in

org.apache.cassandra.db.RowIndexEntry

public IndexState(Reader reader, ClusteringComparator comparator, RowIndexEntry indexEntry, boolean reversed, FileHandle indexFile)
{
  this.reader = reader;
  this.comparator = comparator;
  this.indexEntry = indexEntry;
  this.indexInfoRetriever = indexEntry.openWithIndex(indexFile);
  this.reversed = reversed;
  this.currentIndexIdx = reversed ? indexEntry.columnsIndexCount() : -1;
}

public IndexState(Reader reader, ClusteringComparator comparator, RowIndexEntry indexEntry, boolean reversed, FileHandle indexFile)
{
  this.reader = reader;
  this.comparator = comparator;
  this.indexEntry = indexEntry;
  this.indexInfoRetriever = indexEntry.openWithIndex(indexFile);
  this.reversed = reversed;
  this.currentIndexIdx = reversed ? indexEntry.columnsIndexCount() : -1;
}

public IndexState(Reader reader, ClusteringComparator comparator, RowIndexEntry indexEntry, boolean reversed, FileHandle indexFile)
{
  this.reader = reader;
  this.comparator = comparator;
  this.indexEntry = indexEntry;
  this.indexInfoRetriever = indexEntry.openWithIndex(indexFile);
  this.reversed = reversed;
  this.currentIndexIdx = reversed ? indexEntry.columnsIndexCount() : -1;
}

public IndexState(Reader reader, ClusteringComparator comparator, RowIndexEntry indexEntry, boolean reversed, FileHandle indexFile)
{
  this.reader = reader;
  this.comparator = comparator;
  this.indexEntry = indexEntry;
  this.indexInfoRetriever = indexEntry.openWithIndex(indexFile);
  this.reversed = reversed;
  this.currentIndexIdx = reversed ? indexEntry.columnsIndexCount() : -1;
}

/**
 * @return the lower bound stored on the index entry for this partition, if available.
 */
private ClusteringBound getPartitionIndexLowerBound()
{
  // NOTE: CASSANDRA-11206 removed the lookup against the key-cache as the IndexInfo objects are no longer
  // in memory for not heap backed IndexInfo objects (so, these are on disk).
  // CASSANDRA-11369 is there to fix this afterwards.
  // Creating the iterator ensures that rowIndexEntry is loaded if available (partitions bigger than
  // DatabaseDescriptor.column_index_size_in_kb)
  if (!canUseMetadataLowerBound())
    maybeInit();
  RowIndexEntry rowIndexEntry = null;
  try (RowIndexEntry.IndexInfoRetriever onHeapRetriever = rowIndexEntry.openWithIndex(null))
  {
    IndexInfo column = onHeapRetriever.columnsIndex(filter.isReversed() ? rowIndexEntry.columnsIndexCount() - 1 : 0);
    ClusteringPrefix lowerBoundPrefix = filter.isReversed() ? column.lastName : column.firstName;
    assert lowerBoundPrefix.getRawValues().length <= sstable.metadata.comparator.size() :
    String.format("Unexpected number of clustering values %d, expected %d or fewer for %s",
           lowerBoundPrefix.getRawValues().length,
           sstable.metadata.comparator.size(),
           sstable.getFilename());
    return ClusteringBound.inclusiveOpen(filter.isReversed(), lowerBoundPrefix.getRawValues());
  }
  catch (IOException e)
  {
    throw new RuntimeException("should never occur", e);
  }
}

  return null;
try (RowIndexEntry.IndexInfoRetriever onHeapRetriever = rowIndexEntry.openWithIndex(null))

  return null;
try (RowIndexEntry.IndexInfoRetriever onHeapRetriever = rowIndexEntry.openWithIndex(null))

  return null;
try (RowIndexEntry.IndexInfoRetriever onHeapRetriever = rowIndexEntry.openWithIndex(null))