Package org.agrona.collections

Collections classes that support primitive types and tend to be cache friendly.

See: Description

Interface Summary

Interface	Description
BiInt2ObjectMap.EntryConsumer<V>	Handler for a map entry
BiInt2ObjectMap.EntryFunction<V>	Creates a new value based upon keys.
IntIntConsumer	This is an (int, int) primitive specialisation of a BiConsumer
IntObjConsumer<T>	This is an (int, Object) primitive specialisation of a BiConsumer.
LongLongConsumer	This is an (long, long) primitive specialisation of a BiConsumer

Class Summary

Class	Description
ArrayListUtil	Utility functions for working with ArrayLists.
ArrayUtil	Utility class for operating on arrays as if they were collections.
BiInt2ObjectMap<V>	Map that takes two part int key and associates with an object.
CollectionUtil	Utility functions for collection objects.
Hashing	Hashing functions for applying to integers.
Int2IntCounterMap	A open-addressing with linear probing hash map specialised for primitive key and counter pairs.
Int2IntHashMap	A open addressing with linear probing hash map specialised for primitive key and value pairs.
Int2NullableObjectHashMap<V>	Variation of Int2ObjectHashMap that allows null values.
Int2ObjectCache<V>	A cache implementation specialised for int keys using open addressing to probe a set of fixed size.
Int2ObjectHashMap<V>	Map implementation specialised for int keys using open addressing and linear probing for cache efficient access.
IntArrayList	A List implementation that stores int values with the ability to not have them boxed.
IntArrayQueue	Queue of ints which stores the elements without boxing.
IntHashSet	Open-addressing with linear-probing expandable hash set.
IntLruCache<E>	A fixed capacity cache of int keyed values that evicts the least-recently-used element when it runs out of space.
Long2LongCounterMap	A open-addressing with linear probing hash map specialised for primitive key and counter pairs.
Long2LongHashMap	A open addressing with linear probing hash map specialised for primitive key and value pairs.
Long2NullableObjectHashMap<V>	Variation of Long2ObjectHashMap that allows null values.
Long2ObjectCache<V>	A cache implementation specialised for long keys using open addressing to probe a set of fixed size.
Long2ObjectHashMap<V>	Map implementation specialised for long keys using open addressing and linear probing for cache efficient access.
LongArrayList	A List implementation that stores long values with the ability to not have them boxed.
LongArrayQueue	Queue of longs which stores the elements without boxing.
LongHashSet	Open-addressing with linear-probing expandable hash set.
LongLruCache<E>	A fixed capacity cache of long keyed values that evicts the least-recently-used element when it runs out of space.
MutableBoolean	Mutable boolean valid that is useful for capturing a value when using lambdas or collections.
MutableInteger	Holder for an int value that is mutable.
MutableLong	Holder for an long value that is mutable.
MutableReference<T>	Mutable reference that is useful for capturing an object reference when using lambdas.
NullReference	Sentinel value used in collections supporting null value references.
Object2IntHashMap<K>	Map implementation specialised for int values using open addressing and linear probing for cache efficient access.
Object2LongHashMap<K>	Map implementation specialised for long values using open addressing and linear probing for cache efficient access.
Object2NullableObjectHashMap<K,V>	Variation of Object2ObjectHashMap that allows null values.
Object2ObjectHashMap<K,V>	A open addressing with linear probing hash map, same algorithm as Int2IntHashMap.
ObjectHashSet<T>	Open-addressing with linear-probing expandable hash set.
UnmodifiableCollectionView<V,E>	An unmodifiable view of a collection that maps each element in an underlying collection into a view.

Package org.agrona.collections Description

Collections classes that support primitive types and tend to be cache friendly.