org.apache.cassandra.db.composites

Class CompoundComposite

java.lang.Object

org.apache.cassandra.db.composites.AbstractComposite

org.apache.cassandra.db.composites.CompoundComposite

All Implemented Interfaces:

IMeasurableMemory, Composite

Direct Known Subclasses:

CompoundDenseCellName, CompoundSparseCellName

public class CompoundComposite
extends AbstractComposite

A "truly-composite" Composite.

Nested Class Summary

Nested classes/interfaces inherited from interface org.apache.cassandra.db.composites.Composite

Composite.EOC

Method Summary

Modifier and Type	Method and Description
Composite	copy(CFMetaData cfm, AbstractAllocator allocator)
protected java.nio.ByteBuffer[]	elementsCopy(AbstractAllocator allocator)
java.nio.ByteBuffer	get(int i)
boolean	isStatic()
int	size()
long	unsharedHeapSize()
long	unsharedHeapSizeExcludingData()

Methods inherited from class org.apache.cassandra.db.composites.AbstractComposite

dataSize, end, eoc, equals, hashCode, isEmpty, isPrefixOf, slice, start, toByteBuffer, withEOC

Methods inherited from class java.lang.Object

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

Method Detail

size

public int size()

get

public java.nio.ByteBuffer get(int i)

isStatic

public boolean isStatic()

Specified by:

isStatic in interface Composite

Overrides:

isStatic in class AbstractComposite

elementsCopy

protected java.nio.ByteBuffer[] elementsCopy(AbstractAllocator allocator)

unsharedHeapSize

public long unsharedHeapSize()

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.

unsharedHeapSizeExcludingData

public long unsharedHeapSizeExcludingData()

copy

public Composite copy(CFMetaData cfm,
                      AbstractAllocator allocator)