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

Class FileWriteAheadLogManager.FileDescriptor

java.lang.Object

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

All Implemented Interfaces:

Comparable<FileWriteAheadLogManager.FileDescriptor>

Enclosing class:

FileWriteAheadLogManager

public static class FileWriteAheadLogManager.FileDescriptor
extends Object
implements Comparable<FileWriteAheadLogManager.FileDescriptor>

WAL file descriptor.

Field Summary

Fields

Modifier and Type	Field and Description
protected File	file
protected long	idx Absolute WAL segment file index

Constructor Summary

Constructors

Constructor and Description
FileWriteAheadLogManager.FileDescriptor(File file) Creates file descriptor.
FileWriteAheadLogManager.FileDescriptor(File file, Long idx)

Method Summary

Methods

Modifier and Type	Method and Description
int	compareTo(FileWriteAheadLogManager.FileDescriptor o)
boolean	equals(Object o)
static String	fileName(long segment)
String	getAbsolutePath()
long	getIdx()
int	hashCode()

Methods inherited from class java.lang.Object

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

Field Detail

file

protected final File file

idx

protected final long idx

Absolute WAL segment file index

Constructor Detail

FileWriteAheadLogManager.FileDescriptor

public FileWriteAheadLogManager.FileDescriptor(@NotNull
                                       File file)

Creates file descriptor. Index is restored from file name

Parameters:

file - WAL segment file.

FileWriteAheadLogManager.FileDescriptor

public FileWriteAheadLogManager.FileDescriptor(@NotNull
                                       File file,
                                       @Nullable
                                       Long idx)

Parameters:

file - WAL segment file.

idx - Absolute WAL segment file index. For null value index is restored from file name

Method Detail

fileName

public static String fileName(long segment)

Parameters:

segment - Segment index.

Returns:

Segment file name.

compareTo

public int compareTo(FileWriteAheadLogManager.FileDescriptor o)

Specified by:

compareTo in interface Comparable<FileWriteAheadLogManager.FileDescriptor>

equals

public boolean equals(Object o)

Overrides:

equals in class Object

hashCode

public int hashCode()

Overrides:

hashCode in class Object

getIdx

public long getIdx()

Returns:

Absolute WAL segment file index

getAbsolutePath

public String getAbsolutePath()

Returns:

absolute pathname string of this file descriptor pathname.