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FileOwnerAttributeView

public interface FileOwnerAttributeView
implements FileAttributeView

java.nio.file.attribute.FileOwnerAttributeView


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 void setOwner(UserPrincipal owner)

Updates the file owner.

Inherited methods

Public methods


getOwner

public abstract UserPrincipal getOwner ()

Read the file owner.

It it implementation specific if the file owner can be a GroupPrincipal.

Returns
UserPrincipal the file owner

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

name

public abstract String name ()

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

Returns
String the name of the attribute view

setOwner

public abstract void setOwner (UserPrincipal owner)

Updates the file owner.

It it implementation specific if the file owner can be a GroupPrincipal. 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

Throws
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
SecurityException In the case of the default provider, a security manager is installed, and it denies RuntimePermission("accessUserInformation") or its SecurityManager#checkWrite(String) method denies write access to the file.

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