org.apache.cassandra.cache
Class FreeableMemory

java.lang.Object
  org.apache.cassandra.io.util.Memory
      org.apache.cassandra.cache.FreeableMemory

public class FreeableMemory
extends Memory

Field Summary

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

peer

Constructor Summary

FreeableMemory(long size)

Method Summary

byte	getByte(long offset)
boolean	reference()
void	unreference() decrement reference count.

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

allocate, free, getBytes, setByte, setBytes, size

Methods inherited from class java.lang.Object

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

Constructor Detail

FreeableMemory

public FreeableMemory(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.

getByte

public byte getByte(long offset)

Overrides:

getByte in class Memory