RefCountedMemory (apache-cassandra API)

java.lang.Object
- org.apache.cassandra.io.util.Memory
- - org.apache.cassandra.cache.RefCountedMemory

All Implemented Interfaces:: java.lang.AutoCloseable, ReadableMemory

public class RefCountedMemory
extends Memory
implements java.lang.AutoCloseable

Field Summary
- Fields inherited from class org.apache.cassandra.io.util.Memory
  NO_BYTE_BUFFERS, peer, size

Constructor Summary

Constructors
Constructor Description

RefCountedMemory(long size)

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`void`	`close()`
`RefCountedMemory`	`copy(long newSize)`
`void`	`free()`
`boolean`	`reference()`
`void`	`unreference()`	decrement reference count.

Methods inherited from class org.apache.cassandra.io.util.Memory
allocate, asByteBuffer, asByteBuffers, checkBounds, equals, getByte, getBytes, getInt, getLong, put, setByte, setByteBuffer, setBytes, setBytes, setInt, setLong, setMemory, setShort, size, toString, toString

Methods inherited from class java.lang.Object
clone, finalize, getClass, hashCode, notify, notifyAll, 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.
  - copy
```
public RefCountedMemory copy(long newSize)
```
    Overrides:
    
    copy in class Memory
  - free
```
public void free()
```
    Overrides:
    
    free in class Memory
  - close
```
public void close()
```
    Specified by:
    
    close in interface java.lang.AutoCloseable
    
    Overrides:
    
    close in class Memory