Package org.apache.cassandra.utils.memory

Class MemtableAllocator

java.lang.Object

org.apache.cassandra.utils.memory.MemtableAllocator

Direct Known Subclasses:

MemtableBufferAllocator, NativeAllocator

public abstract class MemtableAllocator
extends Object

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	MemtableAllocator.SubAllocator	Mark the BB as unused, permitting it to be reclaimed

Method Summary

Modifier and Type	Method	Description
abstract Cloner	cloner(OpOrder.Group opGroup)
abstract EnsureOnHeap	ensureOnHeap()
boolean	isLive()
MemtableAllocator.SubAllocator	offHeap()
MemtableAllocator.SubAllocator	onHeap()
void	setDiscarded()	Indicate the memory and resources owned by this allocator are no longer referenced, and can be reclaimed/reused.
void	setDiscarding()	Mark this allocator reclaiming; this will permit any outstanding allocations to temporarily overshoot the maximum memory limit so that flushing can begin immediately

Methods inherited from class java.lang.Object

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

Method Details

ensureOnHeap

public abstract EnsureOnHeap ensureOnHeap()

cloner

public abstract Cloner cloner(OpOrder.Group opGroup)

onHeap

public MemtableAllocator.SubAllocator onHeap()

offHeap

public MemtableAllocator.SubAllocator offHeap()

setDiscarding

public void setDiscarding()

Mark this allocator reclaiming; this will permit any outstanding allocations to temporarily overshoot the maximum memory limit so that flushing can begin immediately

setDiscarded

public void setDiscarded()

Indicate the memory and resources owned by this allocator are no longer referenced, and can be reclaimed/reused.

isLive

public boolean isLive()