org.apache.cassandra.io.sstable

Class SSTableIdentityIterator

java.lang.Object

org.apache.cassandra.io.sstable.SSTableIdentityIterator

All Implemented Interfaces:

java.io.Closeable, java.lang.AutoCloseable, java.lang.Comparable<SSTableIdentityIterator>, java.util.Iterator<OnDiskAtom>, OnDiskAtomIterator, CloseableIterator<OnDiskAtom>

public class SSTableIdentityIterator
extends java.lang.Object
implements java.lang.Comparable<SSTableIdentityIterator>, OnDiskAtomIterator

Field Summary

Fields

Modifier and Type	Field and Description
ColumnSerializer.Flag	flag

Constructor Summary

Constructors

Constructor and Description
SSTableIdentityIterator(SSTableReader sstable, RandomAccessReader file, DecoratedKey key) Used to iterate through the columns of a row.
SSTableIdentityIterator(SSTableReader sstable, RandomAccessReader file, DecoratedKey key, boolean checkData) Used to iterate through the columns of a row.

Method Summary

Modifier and Type	Method and Description
void	close() clean up any open resources
int	compareTo(SSTableIdentityIterator o)
static SSTableIdentityIterator	createFragmentIterator(SSTableReader sstable, RandomAccessReader file, DecoratedKey key, long dataSize, boolean checkData) Used only by scrubber to solve problems with data written after the END_OF_ROW marker.
ColumnFamily	getColumnFamily()
DecoratedKey	getKey()
java.lang.String	getPath()
boolean	hasNext()
OnDiskAtom	next()
void	remove()

Methods inherited from class java.lang.Object

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

Methods inherited from interface java.util.Iterator

forEachRemaining

Field Detail

flag

public final ColumnSerializer.Flag flag

Constructor Detail

SSTableIdentityIterator

public SSTableIdentityIterator(SSTableReader sstable,
                               RandomAccessReader file,
                               DecoratedKey key)

Used to iterate through the columns of a row.

Parameters:

sstable - SSTable we are reading ffrom.

file - Reading using this file.

key - Key of this row.

SSTableIdentityIterator

public SSTableIdentityIterator(SSTableReader sstable,
                               RandomAccessReader file,
                               DecoratedKey key,
                               boolean checkData)

Used to iterate through the columns of a row.

Parameters:

sstable - SSTable we are reading ffrom.

file - Reading using this file.

key - Key of this row.

checkData - if true, do its best to deserialize and check the coherence of row data

Method Detail

createFragmentIterator

public static SSTableIdentityIterator createFragmentIterator(SSTableReader sstable,
                                                             RandomAccessReader file,
                                                             DecoratedKey key,
                                                             long dataSize,
                                                             boolean checkData)

Used only by scrubber to solve problems with data written after the END_OF_ROW marker. Iterates atoms for the given dataSize only and does not accept an END_OF_ROW marker.

getKey

public DecoratedKey getKey()

Specified by:

getKey in interface OnDiskAtomIterator

Returns:

the current row key

getColumnFamily

public ColumnFamily getColumnFamily()

Specified by:

getColumnFamily in interface OnDiskAtomIterator

Returns:

A ColumnFamily holding metadata for the row being iterated. Do not modify this CF. Whether it is empty or not is implementation-dependent.

hasNext

public boolean hasNext()

Specified by:

hasNext in interface java.util.Iterator<OnDiskAtom>

next

public OnDiskAtom next()

Specified by:

next in interface java.util.Iterator<OnDiskAtom>

remove

public void remove()

Specified by:

remove in interface java.util.Iterator<OnDiskAtom>

close

public void close()

Description copied from interface: OnDiskAtomIterator

clean up any open resources

Specified by:

close in interface java.io.Closeable

Specified by:

close in interface java.lang.AutoCloseable

Specified by:

close in interface OnDiskAtomIterator

getPath

public java.lang.String getPath()

compareTo

public int compareTo(SSTableIdentityIterator o)

Specified by:

compareTo in interface java.lang.Comparable<SSTableIdentityIterator>