Package org.apache.cassandra.db.rows

Class CellPath

java.lang.Object

org.apache.cassandra.db.rows.CellPath

All Implemented Interfaces:

IMeasurableMemory

public abstract class CellPath
extends Object
implements IMeasurableMemory

A path for a cell belonging to a complex column type (non-frozen collection or UDT).

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static interface	CellPath.Serializer

Field Summary

Fields

Modifier and Type	Field	Description
static final CellPath	BOTTOM
static final CellPath	TOP

Constructor Summary

Constructors

Constructor	Description
CellPath()

Method Summary

Modifier and Type	Method	Description
abstract CellPath	clone(ByteBufferCloner cloner)
static CellPath	create(ByteBuffer value)
int	dataSize()
void	digest(Digest digest)
final boolean	equals(Object o)
abstract ByteBuffer	get(int i)
final int	hashCode()
abstract int	size()
abstract long	unsharedHeapSize()
abstract long	unsharedHeapSizeExcludingData()

Methods inherited from class java.lang.Object

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

Field Details

BOTTOM

public static final CellPath BOTTOM

TOP

public static final CellPath TOP

Constructor Details

CellPath

public CellPath()

Method Details

size

public abstract int size()

get

public abstract ByteBuffer get(int i)

create

public static CellPath create(ByteBuffer value)

dataSize

public int dataSize()

digest

public void digest(Digest digest)

clone

public abstract CellPath clone(ByteBufferCloner cloner)

unsharedHeapSizeExcludingData

public abstract long unsharedHeapSizeExcludingData()

unsharedHeapSize

public abstract long unsharedHeapSize()

Specified by:

unsharedHeapSize in interface IMeasurableMemory

Returns:

the amount of on-heap memory retained by the object that might be reclaimed if the object were reclaimed, i.e. it should try to exclude globally cached data where possible, or counting portions of arrays that are referenced by the object but used by other objects only (e.g. slabbed byte-buffers), etc.

hashCode

public final int hashCode()

Overrides:

hashCode in class Object

equals

public final boolean equals(Object o)

Overrides:

equals in class Object