Package org.apache.druid.frame.key

Interface Summary

Interface	Description
FrameComparisonWidget	Wraps a Frame and provides ways to compare rows of that frame to various other things.

Class Summary

Class	Description
ByteRowKeyComparator	Comparator for byte arrays from RowKey.key instances.
ClusterBy	Describes a key used for sorting or partitioning.
ClusterByPartition	Boundaries of a partition marked by start and end keys.
ClusterByPartitions	Holder object for a set of ClusterByPartition.
FrameComparisonWidgetImpl	Implementation of FrameComparisonWidget for pairs of FrameType.ROW_BASED frames.
KeyColumn	Represents a component of a hash or sorting key.
RowKey	Represents a specific sorting or hashing key.
RowKeyComparator	Comparator for RowKey instances.
RowKeyComparisonRunLengths	Denotes the ascending-descending run lengths of the fields of the keycolumns that can be compared together.
RowKeyReader	Embeds the logic to read RowKey from a particular signature of row-based frame.
RunLengthEntry	Information about a continguous run of keys, that has the same sorting order

Enum Summary

Enum	Description
KeyOrder	Ordering associated with a KeyColumn.