MemtableAllocator (apache-cassandra API)

java.lang.Object
- org.apache.cassandra.utils.memory.MemtableAllocator

Direct Known Subclasses:: MemtableBufferAllocator, NativeAllocator

public abstract class MemtableAllocator
extends java.lang.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

All Methods Instance Methods Abstract Methods Concrete Methods
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 Detail
  - 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()
```