Added in API level 26

FileOwnerAttributeView

interface FileOwnerAttributeView : FileAttributeView

java.nio.file.attribute.FileOwnerAttributeView

Known Direct Subclasses AclFileAttributeView, PosixFileAttributeView AclFileAttributeView A file attribute view that supports reading or updating a file's Access Control Lists (ACL) or file owner attributes. PosixFileAttributeView A file attribute view that provides a view of the file attributes commonly associated with files on file systems used by operating systems that implement the Portable Operating System Interface (POSIX) family of standards.

A file attribute view that supports reading or updating the owner of a file. This file attribute view is intended for file system implementations that support a file attribute that represents an identity that is the owner of the file. Often the owner of a file is the identity of the entity that created the file.

The getOwner or setOwner methods may be used to read or update the owner of the file.

The getAttribute and setAttribute methods may also be used to read or update the owner. In that case, the owner attribute is identified by the name "owner", and the value of the attribute is a UserPrincipal.

Summary

Public methods
abstract UserPrincipal!	getOwner() Read the file owner.
abstract String!	name() Returns the name of the attribute view.
abstract Unit	setOwner(owner: UserPrincipal!) Updates the file owner.

Public methods

getOwner

Added in API level 26

abstract fun getOwner(): UserPrincipal!

Read the file owner.

It is implementation specific if the file owner can be a group.

Return
UserPrincipal!	the file owner

Exceptions
java.io.IOException	if an I/O error occurs
java.lang.SecurityException	In the case of the default provider, a security manager is installed, and it denies RuntimePermission("accessUserInformation") or its checkRead method denies read access to the file.

name

Added in API level 26

abstract fun name(): String!

Returns the name of the attribute view. Attribute views of this type have the name "owner".

Return
String!	the name of the attribute view

setOwner

Added in API level 26

abstract fun setOwner(owner: UserPrincipal!): Unit

Updates the file owner.

It is implementation specific if the file owner can be a group. To ensure consistent and correct behavior across platforms it is recommended that this method should only be used to set the file owner to a user principal that is not a group.

Parameters
owner	UserPrincipal!: the new file owner

Exceptions
java.io.IOException	if an I/O error occurs, or the owner parameter is a group and this implementation does not support setting the owner to a group
java.lang.SecurityException	In the case of the default provider, a security manager is installed, and it denies RuntimePermission("accessUserInformation") or its checkWrite method denies write access to the file.