Uses of Interface
com.yahoo.memory.Memory

Uses of Memory in com.yahoo.memory

Classes in com.yahoo.memory that implement Memory

Modifier and Type	Class and Description
class	AllocMemory The AllocMemory class is a subclass of NativeMemory1.
class	MemoryMappedFile MemoryMappedFile class extends NativeMemory and is used to memory map files (including those > 2GB) off heap.
class	MemoryRegion The MemoryRegion class implements the Memory interface and provides a means of hierarchically partitioning a large block of native memory into smaller regions of memory, each with their own capacity and offsets.
class	NativeMemory The NativeMemory class implements the Memory interface and is used to access Java primitive arrays, and ByteBuffers by presenting them as arguments to the constructors of this class.

Methods in com.yahoo.memory that return Memory

Modifier and Type	Method and Description
Memory	NativeMemory.asReadOnlyMemory()
Memory	Memory.asReadOnlyMemory() Returns a read-only version of this memory
static Memory	MemoryUtil.memoryRequestHandler(Memory origMem, long newCapacityBytes, boolean copy) Exception handler for requesting a new Memory allocation of the given newCapacityBytes, using the MemoryRequest callback interface.
Memory	MemoryRequest.request(long capacityBytes) Request new Memory with the given capacity.
Memory	MemoryRequest.request(Memory origMem, long copyToBytes, long capacityBytes) Request for allocate and copy.
static Memory	NativeMemory.wrap(ByteBuffer byteBuffer) Provides access to the backing store of the given ByteBuffer using Memory interface.

Methods in com.yahoo.memory with parameters of type Memory

Modifier and Type	Method and Description
static int	MemoryUtil.binarySearchLongs(Memory mem, int fromLongIndex, int toLongIndex, long key) Searches a range of the specified array of longs for the specified value using the binary search algorithm.
void	NativeMemory.copy(long srcOffsetBytes, Memory destination, long dstOffsetBytes, long lengthBytes)
void	MemoryRegion.copy(long srcOffsetBytes, Memory destination, long dstOffsetBytes, long lengthBytes)
void	Memory.copy(long srcOffsetBytes, Memory destination, long dstOffsetBytes, long lengthBytes) Copies bytes from a source range of this Memory to a destination range of the given Memory using the same low-level system copy function as found in System.arraycopy(Object, int, Object, int, int).
static void	NativeMemory.copy(Memory source, long srcOffsetBytes, Memory destination, long dstOffsetBytes, long lengthBytes) Deprecated. Use copy(long, Memory, long, long) instead.
static void	MemoryUtil.copy(Memory source, long srcOffsetBytes, Memory destination, long dstOffsetBytes, long lengthBytes) Deprecated. Use copy(long, Memory, long, long) instead.
void	MemoryRequest.free(Memory mem) The given Memory with its capacity is to be freed.
void	MemoryRequest.free(Memory memToFree, Memory newMem) The given memToFree with its capacity may be freed by the implementation.
static Memory	MemoryUtil.memoryRequestHandler(Memory origMem, long newCapacityBytes, boolean copy) Exception handler for requesting a new Memory allocation of the given newCapacityBytes, using the MemoryRequest callback interface.
Memory	MemoryRequest.request(Memory origMem, long copyToBytes, long capacityBytes) Request for allocate and copy.

Constructors in com.yahoo.memory with parameters of type Memory

Constructor and Description
MemoryRegion(Memory memory, long memOffsetBytes, long capacityBytes) Defines a region of the given parent Memory by defining an offset and capacity that are within the boundaries of the parent.
MemoryRegion(Memory memory, long memOffsetBytes, long capacityBytes, MemoryRequest memReq) Defines a region of the given parent Memory by defining an offset and capacity that are within the boundaries of the parent.