org.apache.cassandra.db

Class ColumnIndex

java.lang.Object

org.apache.cassandra.db.ColumnIndex

public class ColumnIndex
extends java.lang.Object

Column index builder used by BigTableWriter. For index entries that exceed Config.column_index_cache_size_in_kb, this uses the serialization logic as in RowIndexEntry.

Field Summary

Fields

Modifier and Type	Field and Description
int	columnIndexCount
long	headerLength

Constructor Summary

Constructors

Constructor and Description
ColumnIndex(SerializationHeader header, SequentialWriter writer, Version version, java.util.Collection<SSTableFlushObserver> observers, ISerializer<IndexInfo> indexInfoSerializer)

Method Summary

Modifier and Type	Method and Description
java.nio.ByteBuffer	buffer()
void	buildRowIndex(UnfilteredRowIterator iterator)
int	indexInfoSerializedSize()
java.util.List<IndexInfo>	indexSamples()
int[]	offsets()
void	reset()

Methods inherited from class java.lang.Object

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

Field Detail

columnIndexCount

public int columnIndexCount

headerLength

public long headerLength

Constructor Detail

ColumnIndex

public ColumnIndex(SerializationHeader header,
                   SequentialWriter writer,
                   Version version,
                   java.util.Collection<SSTableFlushObserver> observers,
                   ISerializer<IndexInfo> indexInfoSerializer)

Method Detail

reset

public void reset()

buildRowIndex

public void buildRowIndex(UnfilteredRowIterator iterator)
                   throws java.io.IOException

Throws:

java.io.IOException

buffer

public java.nio.ByteBuffer buffer()

indexSamples

public java.util.List<IndexInfo> indexSamples()

offsets

public int[] offsets()

indexInfoSerializedSize

public int indexInfoSerializedSize()