org.apache.arrow.memory

Class ForeignAllocation

java.lang.Object

org.apache.arrow.memory.ForeignAllocation

public abstract class ForeignAllocation
extends Object

EXPERIMENTAL: a memory allocation that does not come from a BufferAllocator, but rather an outside source (like JNI).

To use this, subclass this class and implement release0() to free the allocation.

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	ForeignAllocation(long size, long memoryAddress) Create a new AllocationManager representing an imported buffer.

Method Summary

Modifier and Type	Method and Description
long	getSize() Get the size of this allocation.
protected long	memoryAddress() Get the address of this allocation.
protected abstract void	release0() Free this allocation.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

ForeignAllocation

protected ForeignAllocation(long size,
                            long memoryAddress)

Create a new AllocationManager representing an imported buffer.

Parameters:

size - The buffer size.

memoryAddress - The buffer address.

Method Detail

getSize

public long getSize()

Get the size of this allocation.

memoryAddress

protected long memoryAddress()

Get the address of this allocation.

release0

protected abstract void release0()

Free this allocation. Will only be called once.