org.apache.ignite.internal.processors.cache.persistence.wal

Class FileWALPointer

java.lang.Object

org.apache.ignite.internal.processors.cache.persistence.wal.FileWALPointer

All Implemented Interfaces:

Comparable<FileWALPointer>, WALPointer

public class FileWALPointer
extends Object
implements WALPointer, Comparable<FileWALPointer>

File WAL pointer.

Constructor Summary

Constructors

Constructor and Description
FileWALPointer(long idx, int fileOffset, int len)
FileWALPointer(long idx, int fileOffset, int len, boolean forceFlush)

Method Summary

Methods

Modifier and Type	Method and Description
int	compareTo(FileWALPointer o)
boolean	equals(Object o)
int	fileOffset()
boolean	forceFlush()
int	hashCode()
long	index()
int	length()
void	length(int len)
WALPointer	next() Pointer to the next record.
String	toString()

Methods inherited from class java.lang.Object

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

Constructor Detail

FileWALPointer

public FileWALPointer(long idx,
              int fileOffset,
              int len)

Parameters:

idx - Absolute WAL segment file index (incremental counter)

fileOffset - Offset in file, from the beginning.

len - Record length.

FileWALPointer

public FileWALPointer(long idx,
              int fileOffset,
              int len,
              boolean forceFlush)

Parameters:

idx - Absolute WAL segment file index .

fileOffset - Offset in file, from the beginning.

len - Record length.

forceFlush - Force flush flag.

Method Detail

index

public long index()

Returns:

Absolute WAL segment file index .

fileOffset

public int fileOffset()

Returns:

File offset.

length

public int length()

Returns:

Record length.

length

public void length(int len)

Parameters:

len - Record length.

next

public WALPointer next()

Pointer to the next record. Can be used only for original pointers obtained from WAL manager.

Specified by:

next in interface WALPointer

forceFlush

public boolean forceFlush()

Returns:

Force flush flag.

equals

public boolean equals(Object o)

Overrides:

equals in class Object

hashCode

public int hashCode()

Overrides:

hashCode in class Object

compareTo

public int compareTo(FileWALPointer o)

Specified by:

compareTo in interface Comparable<FileWALPointer>

toString

public String toString()

Overrides:

toString in class Object