org.apache.cassandra.db

Class RangeTombstone.Tracker

java.lang.Object

org.apache.cassandra.db.RangeTombstone.Tracker

Enclosing class:

RangeTombstone

public static class RangeTombstone.Tracker
extends java.lang.Object

Field Summary

Fields

Modifier and Type	Field and Description
java.util.Set<RangeTombstone>	expired

Constructor Summary

Constructors

Constructor and Description
RangeTombstone.Tracker(java.util.Comparator<java.nio.ByteBuffer> comparator)

Method Summary

Methods

Modifier and Type	Method and Description
boolean	isDeleted(Column column)
void	update(OnDiskAtom atom, boolean isExpired) Update this tracker given an atom.
long	writeOpenedMarker(OnDiskAtom firstColumn, java.io.DataOutput out, OnDiskAtom.Serializer atomSerializer) Compute RangeTombstone that are needed at the beginning of an index block starting with firstColumn.
int	writtenAtom()

Methods inherited from class java.lang.Object

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

Field Detail

expired

public final java.util.Set<RangeTombstone> expired

Constructor Detail

RangeTombstone.Tracker

public RangeTombstone.Tracker(java.util.Comparator<java.nio.ByteBuffer> comparator)

Method Detail

writeOpenedMarker

public long writeOpenedMarker(OnDiskAtom firstColumn,
                     java.io.DataOutput out,
                     OnDiskAtom.Serializer atomSerializer)
                       throws java.io.IOException

Compute RangeTombstone that are needed at the beginning of an index block starting with firstColumn. Returns the total serialized size of said tombstones and write them to out it if isn't null.

Throws:

java.io.IOException

writtenAtom

public int writtenAtom()

update

public void update(OnDiskAtom atom,
          boolean isExpired)

Update this tracker given an atom. If column is a Column, check if any tracked range is useless and can be removed. If it is a RangeTombstone, add it to this tracker.

isDeleted

public boolean isDeleted(Column column)