Package org.apache.cassandra.index.sai.memory

Interface MemtableOrdering

All Known Implementing Classes:

MemoryIndex, MemtableIndex, TrieMemoryIndex, VectorMemoryIndex

public interface MemtableOrdering

Analogue of SegmentOrdering, but for memtables.

Method Summary

Modifier and Type	Method	Description
CloseableIterator<PrimaryKeyWithScore>	orderBy(QueryContext queryContext, Expression orderer, AbstractBounds<PartitionPosition> keyRange)	Order the index based on the given orderer (expression).
CloseableIterator<PrimaryKeyWithScore>	orderResultsBy(QueryContext context, List<PrimaryKey> results, Expression orderer)	Order the given list of PrimaryKey results corresponding to the given orderer.

Method Details

orderBy

CloseableIterator<PrimaryKeyWithScore> orderBy(QueryContext queryContext,
 Expression orderer,
 AbstractBounds<PartitionPosition> keyRange)

Order the index based on the given orderer (expression).

Parameters:

queryContext - - the query context

orderer - - the expression to order by

keyRange - - the key range to search

Returns:

an iterator over the results in score order.

orderResultsBy

CloseableIterator<PrimaryKeyWithScore> orderResultsBy(QueryContext context,
 List<PrimaryKey> results,
 Expression orderer)

Order the given list of PrimaryKey results corresponding to the given orderer. Returns an iterator over the results in score order. Assumes that the given spans the same rows as the implementing index's segment.