Package org.lenskit.util.keys

Data structures indexed by long IDs (keys).

See: Description

Interface Summary

Interface	Description
KeyedObject	Interface for objects that can be identified by long key.
KeyExtractor<T>	Extract keys from objects.
KeyIndex	Bidirectional mapping between long keys and a contiguous range of integer indexes.

Class Summary

Class	Description
FrozenHashKeyIndex	Immutable key index backed by a hash table.
HashKeyIndex	Mutable index mapping backed by a hash table.
KeyedObjectMap<T>	A map that allows objects with long keys to be looked up by key.
KeyedObjectMapBuilder<T>	Builder for keyed object maps.
Keys	Utility class for key extractors.
Long2DoubleSortedArrayMap	An immutable long-to-double map backed by a sorted key array.
LongSortedArraySet	A sorted set of longs implemented using a sorted array.
SortedKeyIndex	Implement an index of long keys, sorted by key.

Package org.lenskit.util.keys Description

Data structures indexed by long IDs (keys).