org.apache.cassandra.io.sstable

Class IndexSummary

java.lang.Object

org.apache.cassandra.io.sstable.IndexSummary

All Implemented Interfaces:

java.io.Closeable, java.lang.AutoCloseable

public class IndexSummary
extends java.lang.Object
implements java.io.Closeable

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	IndexSummary.IndexSummarySerializer

Field Summary

Fields

Modifier and Type	Field and Description
static IndexSummary.IndexSummarySerializer	serializer

Constructor Summary

Constructors

Constructor and Description
IndexSummary(IPartitioner partitioner, Memory memory, int summary_size, int indexInterval)

Method Summary

Methods

Modifier and Type	Method and Description
int	binarySearch(RowPosition key)
void	close()
int	getIndex(int index)
int	getIndexInterval()
byte[]	getKey(int index)
long	getPosition(int index)
long	offHeapSize() Returns the amount of memory in bytes used off heap.
int	size()

Methods inherited from class java.lang.Object

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

Field Detail

serializer

public static final IndexSummary.IndexSummarySerializer serializer

Constructor Detail

IndexSummary

public IndexSummary(IPartitioner partitioner,
            Memory memory,
            int summary_size,
            int indexInterval)

Method Detail

binarySearch

public int binarySearch(RowPosition key)

getIndex

public int getIndex(int index)

getKey

public byte[] getKey(int index)

getPosition

public long getPosition(int index)

getIndexInterval

public int getIndexInterval()

size

public int size()

offHeapSize

public long offHeapSize()

Returns the amount of memory in bytes used off heap.

Returns:

the amount of memory in bytes used off heap

close

public void close()
           throws java.io.IOException

Specified by:

close in interface java.io.Closeable

Specified by:

close in interface java.lang.AutoCloseable

Throws:

java.io.IOException