Enum Feature

java.lang.Object

java.lang.Enum<Feature>

io.roastedroot.zerofs.Feature

All Implemented Interfaces:

Serializable, Comparable<Feature>

public enum Feature
extends Enum<Feature>

Optional file system features that may be supported or unsupported by a ZeroFs file system instance.

Enum Constant Summary

Enum Constants

Enum Constant	Description
FILE_CHANNEL	Feature controlling support for invalid reference FileChannel .
LINKS	Feature controlling support for hard links to regular files.
SECURE_DIRECTORY_STREAM	Feature controlling support for invalid reference SecureDirectoryStream .
SYMBOLIC_LINKS	Feature controlling support for symbolic links.

Constructor Summary

Constructors

Modifier	Constructor	Description
private	Feature()

Method Summary

Modifier and Type	Method	Description
static Feature	valueOf(String name)	Returns the enum constant of this type with the specified name.
static Feature[]	values()	Returns an array containing the constants of this enum type, in the order they are declared.

Methods inherited from class Enum

clone, compareTo, equals, finalize, getDeclaringClass, hashCode, name, ordinal, toString, valueOf

Methods inherited from class Object

getClass, notify, notifyAll, wait, wait, wait

Enum Constant Details

LINKS

public static final Feature LINKS

Feature controlling support for hard links to regular files.

Affected method:

• invalid reference

  Files#createLink(Path, Path)

If this feature is not enabled, this method will throw UnsupportedOperationException.

SYMBOLIC_LINKS

public static final Feature SYMBOLIC_LINKS

Feature controlling support for symbolic links.

Affected methods:

• invalid reference

  Files#createSymbolicLink(Path, Path, FileAttribute...)

• invalid reference

  Files#readSymbolicLink(Path)

If this feature is not enabled, these methods will throw UnsupportedOperationException.

SECURE_DIRECTORY_STREAM

public static final Feature SECURE_DIRECTORY_STREAM

Feature controlling support for

invalid reference

SecureDirectoryStream

.

Affected methods:

• invalid reference

  Files#newDirectoryStream(Path)

• invalid reference

  Files#newDirectoryStream(Path, DirectoryStream.Filter)

• invalid reference

  Files#newDirectoryStream(Path, String)

If this feature is enabled, the

invalid reference

DirectoryStream

instances returned by these methods will also implement

invalid reference

SecureDirectoryStream

.

FILE_CHANNEL

public static final Feature FILE_CHANNEL

Feature controlling support for

invalid reference

FileChannel

.

Affected methods:

• invalid reference

  Files#newByteChannel(Path, OpenOption...)

• invalid reference

  Files#newByteChannel(Path, Set, FileAttribute...)

• invalid reference

  FileChannel#open(Path, OpenOption...)

• invalid reference

  FileChannel#open(Path, Set, FileAttribute...)

• invalid reference

  AsynchronousFileChannel#open(Path, OpenOption...)

• invalid reference

  AsynchronousFileChannel#open(Path, Set, ExecutorService, FileAttribute...)

If this feature is not enabled, the

invalid reference

SeekableByteChannel

instances returned by the Files methods will not be FileChannel instances and the FileChannel.open and AsynchronousFileChannel.open methods will throw UnsupportedOperationException.

Constructor Details

Feature

private Feature()

Method Details

values

public static Feature[] values()

Returns an array containing the constants of this enum type, in the order they are declared.

Returns:

an array containing the constants of this enum type, in the order they are declared

valueOf

public static Feature valueOf(String name)

Returns the enum constant of this type with the specified name. The string must match exactly an identifier used to declare an enum constant in this type. (Extraneous whitespace characters are not permitted.)

Parameters:

name - the name of the enum constant to be returned.

Returns:

the enum constant with the specified name

Throws:

IllegalArgumentException - if this enum type has no constant with the specified name

NullPointerException - if the argument is null