org.apache.cassandra.db

Class MutableDeletionInfo

java.lang.Object

org.apache.cassandra.db.MutableDeletionInfo

All Implemented Interfaces:

IMeasurableMemory, DeletionInfo

public class MutableDeletionInfo
extends java.lang.Object
implements DeletionInfo

A mutable implementation of DeletionInfo.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	MutableDeletionInfo.Builder Builds DeletionInfo object from (in order) range tombstone markers.

Field Summary

Fields inherited from interface org.apache.cassandra.db.DeletionInfo

LIVE

Constructor Summary

Constructors

Constructor and Description
MutableDeletionInfo(DeletionTime partitionDeletion)
MutableDeletionInfo(DeletionTime partitionDeletion, RangeTombstoneList ranges)
MutableDeletionInfo(long markedForDeleteAt, int localDeletionTime) Creates a DeletionInfo with only a top-level (row) tombstone.

Method Summary

Modifier and Type	Method and Description
DeletionInfo	add(DeletionInfo newInfo) Combines another DeletionInfo with this one and returns the result.
void	add(DeletionTime newInfo) Potentially replaces the top-level tombstone with another, keeping whichever has the higher markedForDeleteAt timestamp.
void	add(RangeTombstone tombstone, ClusteringComparator comparator)
static MutableDeletionInfo.Builder	builder(DeletionTime partitionLevelDeletion, ClusteringComparator comparator, boolean reversed)
void	collectStats(EncodingStats.Collector collector)
MutableDeletionInfo	copy(AbstractAllocator allocator)
int	dataSize()
boolean	equals(java.lang.Object o)
DeletionTime	getPartitionDeletion()
int	hashCode()
boolean	hasRanges()
boolean	isLive() Returns whether this DeletionInfo is live, that is deletes no columns.
static MutableDeletionInfo	live() Returns a new DeletionInfo that has no top-level tombstone or any range tombstones.
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)
java.lang.String	toString()
long	unsharedHeapSize()
DeletionInfo	updateAllTimestamp(long timestamp)

Methods inherited from class java.lang.Object

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

Constructor Detail

MutableDeletionInfo

public MutableDeletionInfo(long markedForDeleteAt,
                           int localDeletionTime)

Creates a DeletionInfo with only a top-level (row) tombstone.

Parameters:

markedForDeleteAt - the time after which the entire row should be considered deleted

localDeletionTime - what time the deletion write was applied locally (for purposes of purging the tombstone after gc_grace_seconds).

MutableDeletionInfo

public MutableDeletionInfo(DeletionTime partitionDeletion)

MutableDeletionInfo

public MutableDeletionInfo(DeletionTime partitionDeletion,
                           RangeTombstoneList ranges)

Method Detail

live

public static MutableDeletionInfo live()

Returns a new DeletionInfo that has no top-level tombstone or any range tombstones.

mutableCopy

public MutableDeletionInfo mutableCopy()

Specified by:

mutableCopy in interface DeletionInfo

copy

public MutableDeletionInfo copy(AbstractAllocator allocator)

Specified by:

copy in interface DeletionInfo

isLive

public boolean isLive()

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

Specified by:

isLive in interface DeletionInfo

add

public void add(DeletionTime newInfo)

Potentially replaces the top-level tombstone with another, keeping whichever has the higher markedForDeleteAt timestamp.

Parameters:

newInfo - the deletion time to add to this deletion info.

add

public void add(RangeTombstone tombstone,
                ClusteringComparator comparator)

add

public DeletionInfo add(DeletionInfo newInfo)

Combines another DeletionInfo with this one and returns the result. Whichever top-level tombstone has the higher markedForDeleteAt timestamp will be kept, along with its localDeletionTime. The range tombstones will be combined.

Returns:

this object.

getPartitionDeletion

public DeletionTime getPartitionDeletion()

Specified by:

getPartitionDeletion in interface DeletionInfo

rangeIterator

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

Specified by:

rangeIterator in interface DeletionInfo

rangeIterator

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

Specified by:

rangeIterator in interface DeletionInfo

rangeCovering

public RangeTombstone rangeCovering(Clustering name)

Specified by:

rangeCovering in interface DeletionInfo

dataSize

public int dataSize()

Specified by:

dataSize in interface DeletionInfo

hasRanges

public boolean hasRanges()

Specified by:

hasRanges in interface DeletionInfo

rangeCount

public int rangeCount()

Specified by:

rangeCount in interface DeletionInfo

maxTimestamp

public long maxTimestamp()

Specified by:

maxTimestamp in interface DeletionInfo

mayModify

public boolean mayModify(DeletionInfo delInfo)

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

Specified by:

mayModify in interface DeletionInfo

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object

updateAllTimestamp

public DeletionInfo updateAllTimestamp(long timestamp)

equals

public boolean equals(java.lang.Object o)

Overrides:

equals in class java.lang.Object

hashCode

public final int hashCode()

Overrides:

hashCode in class java.lang.Object

unsharedHeapSize

public 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.

collectStats

public void collectStats(EncodingStats.Collector collector)

Specified by:

collectStats in interface DeletionInfo

builder

public static MutableDeletionInfo.Builder builder(DeletionTime partitionLevelDeletion,
                                                  ClusteringComparator comparator,
                                                  boolean reversed)