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

Class WALPointer

java.lang.Object

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

All Implemented Interfaces:

Serializable, Comparable<WALPointer>

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

File WAL pointer.

See Also:

Serialized Form

Field Summary

Fields

Modifier and Type	Field and Description
static int	POINTER_SIZE Pointer serialized size.

Constructor Summary

Constructors

Constructor and Description
WALPointer(long idx, int fileOff, int len)

Method Summary

Modifier and Type	Method and Description
int	compareTo(@NotNull WALPointer o)
boolean	equals(Object o)
int	fileOffset()
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

Field Detail

POINTER_SIZE

public static final int POINTER_SIZE

Pointer serialized size.

See Also:

Constant Field Values

Constructor Detail

WALPointer

public WALPointer(long idx,
                  int fileOff,
                  int len)

Parameters:

idx - Absolute WAL segment file index (incremental counter).

fileOff - Offset in file, from the beginning.

len - Record length.

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.

equals

public boolean equals(Object o)

Overrides:

equals in class Object

hashCode

public int hashCode()

Overrides:

hashCode in class Object

compareTo

public int compareTo(@NotNull
                     @NotNull WALPointer o)

Specified by:

compareTo in interface Comparable<WALPointer>

toString

public String toString()

Overrides:

toString in class Object