org.apache.paimon.memory

Interface MemorySegmentPool

All Superinterfaces:

MemorySegmentSource

All Known Implementing Classes:

AbstractMemorySegmentPool, ArraySegmentPool, CachelessSegmentPool, FlinkMemorySegmentPool, HeapMemorySegmentPool

@Public
public interface MemorySegmentPool
extends MemorySegmentSource

MemorySegment pool to hold pages in memory.

Since:

0.4.0

Field Summary

Fields

Modifier and Type	Field and Description
static int	DEFAULT_PAGE_SIZE

Method Summary

Modifier and Type	Method and Description
static MemorySegmentPool	createHeapPool(MemorySize maxMemory, MemorySize pageSize)
int	freePages()
int	pageSize() Get the page size of each page this pool holds.
void	returnAll(List<MemorySegment> memory) Return all pages back into this pool.

Methods inherited from interface org.apache.paimon.memory.MemorySegmentSource

nextSegment

Field Detail

DEFAULT_PAGE_SIZE

static final int DEFAULT_PAGE_SIZE

See Also:

Constant Field Values

Method Detail

pageSize

int pageSize()

Get the page size of each page this pool holds.

Returns:

the page size, the bytes size in one page.

returnAll

void returnAll(List<MemorySegment> memory)

Return all pages back into this pool.

Parameters:

memory - the pages which want to be returned.

freePages

int freePages()

Returns:

Free page number.

createHeapPool

static MemorySegmentPool createHeapPool(MemorySize maxMemory,
                                        MemorySize pageSize)