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>, AbstractWalRecordsIterator.AbstractFileDescriptor

Enclosing class:

FileWriteAheadLogManager

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

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
FileDescriptor(File file) Creates file descriptor.
FileDescriptor(File file, Long idx)

Method Summary

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

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

FileDescriptor

public FileDescriptor(@NotNull
                      File file)

Creates file descriptor. Index is restored from file name

Parameters:

file - WAL segment file.

FileDescriptor

public 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(@NotNull
                     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.

isCompressed

public boolean isCompressed()

Specified by:

isCompressed in interface AbstractWalRecordsIterator.AbstractFileDescriptor

Returns:

True if segment is ZIP compressed.

file

public File file()

Specified by:

file in interface AbstractWalRecordsIterator.AbstractFileDescriptor

idx

public long idx()

Specified by:

idx in interface AbstractWalRecordsIterator.AbstractFileDescriptor