Interface DosFileAttributeView

All Superinterfaces:: AttributeView, BasicFileAttributeView, FileAttributeView

public interface DosFileAttributeView extends BasicFileAttributeView

A file attribute view that provides a view of the legacy "DOS" file attributes. These attributes are supported by file systems such as the File Allocation Table (FAT) format commonly used in consumer devices.

A DosFileAttributeView is a BasicFileAttributeView that additionally supports access to the set of DOS attribute flags that are used to indicate if the file is read-only, hidden, a system file, or archived.

Where dynamic access to file attributes is required, the attributes supported by this attribute view are as defined by BasicFileAttributeView, and in addition, the following attributes are supported:

Supported attributes

Name Type

readonly Boolean

hidden Boolean

system Boolean

archive Boolean

Supported attributes
Name	Type
readonly	`Boolean`
hidden	`Boolean`
system	`Boolean`
archive	`Boolean`

The getAttribute method may be used to read any of these attributes, or any of the attributes defined by BasicFileAttributeView as if by invoking the readAttributes() method.

The setAttribute method may be used to update the file's last modified time, last access time or create time attributes as defined by BasicFileAttributeView. It may also be used to update the DOS attributes as if by invoking the setReadOnly, setHidden, setSystem, and setArchive methods respectively.

Since:: 1.7

Method Summary

Modifier and Type	Method	Description
`String`	`name()`	Returns the name of the attribute view.
`DosFileAttributes`	`readAttributes()`	Reads the basic file attributes as a bulk operation.
`void`	`setArchive(boolean value)`	Updates the value of the archive attribute.
`void`	`setHidden(boolean value)`	Updates the value of the hidden attribute.
`void`	`setReadOnly(boolean value)`	Updates the value of the read-only attribute.
`void`	`setSystem(boolean value)`	Updates the value of the system attribute.

Methods declared in interface BasicFileAttributeView

setTimes

Modifier and Type	Method	Description
`void`	`setTimes(FileTime lastModifiedTime, FileTime lastAccessTime, FileTime createTime)`	Updates any or all of the file's last modified time, last access time, and create time attributes.

Method Details

name

String name()

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

Specified by:: name in interface AttributeView
Specified by:: name in interface BasicFileAttributeView
Returns:: the name of the attribute view

readAttributes

DosFileAttributes readAttributes() throws IOException

Description copied from interface: BasicFileAttributeView

Reads the basic file attributes as a bulk operation.

It is implementation specific if all file attributes are read as an atomic operation with respect to other file system operations.

Specified by:: readAttributes in interface BasicFileAttributeView
Returns:: the file attributes
Throws:: IOException - if an I/O error occurs

setReadOnly

void setReadOnly(boolean value) throws IOException

Updates the value of the read-only attribute.

It is implementation specific if the attribute can be updated as an atomic operation with respect to other file system operations. An implementation may, for example, require to read the existing value of the DOS attribute in order to update this attribute.

Parameters:: value - the new value of the attribute
Throws:: IOException - if an I/O error occurs

setHidden

void setHidden(boolean value) throws IOException

Updates the value of the hidden attribute.

Parameters:: value - the new value of the attribute
Throws:: IOException - if an I/O error occurs

setSystem

void setSystem(boolean value) throws IOException

Updates the value of the system attribute.

Parameters:: value - the new value of the attribute
Throws:: IOException - if an I/O error occurs

setArchive

void setArchive(boolean value) throws IOException

Updates the value of the archive attribute.

Parameters:: value - the new value of the attribute
Throws:: IOException - if an I/O error occurs

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