org.apache.cassandra.cache

Class RefCountedMemory

java.lang.Object

org.apache.cassandra.io.util.Memory

org.apache.cassandra.cache.RefCountedMemory

public class RefCountedMemory
extends Memory

Field Summary

Fields inherited from class org.apache.cassandra.io.util.Memory

peer

Constructor Summary

Constructors

Constructor and Description
RefCountedMemory(long size)

Method Summary

Methods

Modifier and Type	Method and Description
boolean	reference()
void	unreference() decrement reference count.

Methods inherited from class org.apache.cassandra.io.util.Memory

allocate, equals, free, getByte, getBytes, getLong, setByte, setBytes, setLong, setMemory, size

Methods inherited from class java.lang.Object

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

Constructor Detail

RefCountedMemory

public RefCountedMemory(long size)

Method Detail

reference

public boolean reference()

Returns:

true if we succeed in referencing before the reference count reaches zero. (A FreeableMemory object is created with a reference count of one.)

unreference

public void unreference()

decrement reference count. if count reaches zero, the object is freed.