public IndexedSliceReader(
SSTableReader sstable,
FileDataInput input,
ByteBuffer startColumn,
ByteBuffer finishColumn,
boolean reversed) {
this.file = input;
this.startColumn = startColumn;
this.finishColumn = finishColumn;
this.reversed = reversed;
comparator = sstable.metadata.comparator;
try {
IndexHelper.skipBloomFilter(file);
indexes = IndexHelper.deserializeIndex(file);
emptyColumnFamily =
ColumnFamily.serializer()
.deserializeFromSSTableNoColumns(ColumnFamily.create(sstable.metadata), file);
fetcher = indexes == null ? new SimpleBlockFetcher() : new IndexedBlockFetcher();
} catch (IOException e) {
throw new IOError(e);
}
}
IndexedBlockFetcher() throws IOException {
file.readInt(); // column count
this.mark = file.mark();
curRangeIndex = IndexHelper.indexFor(startColumn, indexes, comparator, reversed);
}