com.hazelcast.internal.util.hashslot

Interface HashSlotArray12byteKey

All Superinterfaces:

Disposable, HashSlotArray

All Known Implementing Classes:

HashSlotArray12byteKeyImpl

public interface HashSlotArray12byteKey
extends HashSlotArray

Specialization of HashSlotArray to the case where the key consists of a long and an int value and the value part is a block whose size is 4 + multiple of 8 (including zero).

Method Summary

Modifier and Type	Method and Description
HashSlotCursor12byteKey	cursor() Returns a cursor over all assigned slots in this array.
SlotAssignmentResult	ensure(long key1, int key2) Ensures that there is a mapping from (key1, key2) to a slot in the array.
long	get(long key1, int key2) Returns the address of the value block mapped by (key1, key2).
boolean	remove(long key1, int key2) Removes the mapping for (key1, key2), if any.

Methods inherited from interface com.hazelcast.internal.util.hashslot.HashSlotArray

address, capacity, clear, expansionThreshold, gotoAddress, gotoNew, size, trimToSize

Methods inherited from interface com.hazelcast.nio.Disposable

dispose

Method Detail

ensure

SlotAssignmentResult ensure(long key1,
                            int key2)

Ensures that there is a mapping from (key1, key2) to a slot in the array. The returned object contains the slot value block address and whether a new slot had to be assigned. The hash slot array implementation keeps a reference to the returned object and will always return the same instance, albeit with updated fields on each new invocation. This means the returned object is valid until the next invocation of this method.

Parameters:

key1 - key part 1

key2 - key part 2

Returns:

the value block assignment result

get

long get(long key1,
         int key2)

Returns the address of the value block mapped by (key1, key2).

Parameters:

key1 - key part 1

key2 - key part 2

Returns:

address of the value block or MemoryAllocator.NULL_ADDRESS if no mapping for (key1, key2) exists.

remove

boolean remove(long key1,
               int key2)

Removes the mapping for (key1, key2), if any.

Parameters:

key1 - key part 1

key2 - key part 2

Returns:

true if there was a mapping, false otherwise

cursor

HashSlotCursor12byteKey cursor()

Returns a cursor over all assigned slots in this array.