インタフェースの使用
org.apache.arrow.memory.BufferAllocator

BufferAllocatorを使用しているパッケージ

パッケージ	説明
io.netty.buffer
org.apache.arrow.memory	Memory Allocation, Account and Management See the README.md file in this directory for detailed information about Arrow's memory allocation subsystem.

io.netty.bufferでのBufferAllocatorの使用

BufferAllocator型のパラメータを持つio.netty.bufferのメソッド

修飾子とタイプ	メソッドと説明
ArrowBuf	ArrowBuf.retain(BufferAllocator target) Create a new ArrowBuf that is associated with an alternative allocator for the purposes of memory ownership and accounting.
ArrowBuf.TransferResult	ArrowBuf.transferOwnership(BufferAllocator target) Transfer the memory accounting ownership of this ArrowBuf to another allocator.

BufferAllocator型のパラメータを持つio.netty.bufferのコンストラクタ

コンストラクタと説明
ExpandableByteBuf(io.netty.buffer.ByteBuf buffer, BufferAllocator allocator)

org.apache.arrow.memoryでのBufferAllocatorの使用

BufferAllocatorを実装しているorg.apache.arrow.memoryのクラス

修飾子とタイプ	クラスと説明
class	BaseAllocator
class	RootAllocator The root allocator for using direct memory inside a Drillbit.

BufferAllocatorを返すorg.apache.arrow.memoryのメソッド

修飾子とタイプ	メソッドと説明
BufferAllocator	BaseAllocator.newChildAllocator(String name, AllocationListener listener, long initReservation, long maxAllocation)
BufferAllocator	BufferAllocator.newChildAllocator(String name, AllocationListener listener, long initReservation, long maxAllocation) Create a new child allocator.
BufferAllocator	BaseAllocator.newChildAllocator(String name, long initReservation, long maxAllocation)
BufferAllocator	BufferAllocator.newChildAllocator(String name, long initReservation, long maxAllocation) Create a new child allocator.
BufferAllocator	ArrowByteBufAllocator.unwrap()

BufferAllocator型のパラメータを持つorg.apache.arrow.memoryのメソッド

修飾子とタイプ	メソッドと説明
AllocationManager.BufferLedger	AllocationManager.BufferLedger.getLedgerForAllocator(BufferAllocator allocator) Returns the ledger associated with a particular BufferAllocator.
void	AllocationListener.onChildAdded(BufferAllocator parentAllocator, BufferAllocator childAllocator) Called immediately after a child allocator was added to the parent allocator
void	AllocationListener.onChildRemoved(BufferAllocator parentAllocator, BufferAllocator childAllocator) Called immediately after a child allocator was removed from the parent allocator

BufferAllocator型のパラメータを持つorg.apache.arrow.memoryのコンストラクタ

コンストラクタと説明
ArrowByteBufAllocator(BufferAllocator allocator)