Package org.apache.cassandra.db

Interface DeletionInfo

All Superinterfaces:

IMeasurableMemory

All Known Implementing Classes:

MutableDeletionInfo

public interface DeletionInfo
extends IMeasurableMemory

A combination of a top-level (partition) tombstone and range tombstones describing the deletions within a partition.

Note that in practice MutableDeletionInfo is the only concrete implementation of this, however different parts of the code will return either DeletionInfo or MutableDeletionInfo based on whether it can/should be mutated or not.

Warning: do not ever cast a DeletionInfo into a MutableDeletionInfo to mutate it!!! TODO: it would be safer to have 2 actual implementation of DeletionInfo, one mutable and one that isn't (I'm just lazy right this minute).

Field Summary

Fields

Modifier and Type	Field	Description
static DeletionInfo	LIVE

Method Summary

Modifier and Type	Method	Description
DeletionInfo	clone(ByteBufferCloner cloner)
void	collectStats(EncodingStats.Collector collector)
int	dataSize()
DeletionTime	getPartitionDeletion()
boolean	hasRanges()
boolean	isLive()	Returns whether this DeletionInfo is live, that is deletes no columns.
long	maxTimestamp()
boolean	mayModify(DeletionInfo delInfo)	Whether this deletion info may modify the provided one if added to it.
MutableDeletionInfo	mutableCopy()
int	rangeCount()
RangeTombstone	rangeCovering(Clustering<?> name)
java.util.Iterator<RangeTombstone>	rangeIterator(boolean reversed)
java.util.Iterator<RangeTombstone>	rangeIterator(Slice slice, boolean reversed)

Methods inherited from interface org.apache.cassandra.cache.IMeasurableMemory

unsharedHeapSize

Field Detail

LIVE

static final DeletionInfo LIVE

Method Detail

isLive

boolean isLive()

Returns whether this DeletionInfo is live, that is deletes no columns.

getPartitionDeletion

DeletionTime getPartitionDeletion()

rangeIterator

java.util.Iterator<RangeTombstone> rangeIterator(boolean reversed)

rangeIterator

java.util.Iterator<RangeTombstone> rangeIterator(Slice slice,
                                                 boolean reversed)

rangeCovering

RangeTombstone rangeCovering(Clustering<?> name)

collectStats

void collectStats(EncodingStats.Collector collector)

dataSize

int dataSize()

hasRanges

boolean hasRanges()

rangeCount

int rangeCount()

maxTimestamp

long maxTimestamp()

mayModify

boolean mayModify(DeletionInfo delInfo)

Whether this deletion info may modify the provided one if added to it.

mutableCopy

MutableDeletionInfo mutableCopy()

clone

DeletionInfo clone(ByteBufferCloner cloner)