* <td> {@link Boolean}
* </tr>
* <tr>
* <td> hidden
* <td> {@link Boolean}
* </tr>
* <tr>
* <td> system
* <td> {@link Boolean}
* </tr>
* <tr>
* <td> archive
* <td> {@link Boolean}
* </tr>
* </table>
* </blockquote>
*
* <p> The {@link java.nio.file.Files#getAttribute getAttribute} method may
* be used to read any of these attributes, or any of the attributes defined by
* {@link BasicFileAttributeView} as if by invoking the {@link #readAttributes
* readAttributes()} method.
*
* <p> The {@link java.nio.file.Files#setAttribute setAttribute} method may
* be used to update the file's last modified time, last access time or create
* time attributes as defined by {@link BasicFileAttributeView}. It may also be
* used to update the DOS attributes as if by invoking the {@link #setReadOnly
* setReadOnly}, {@link #setHidden setHidden}, {@link #setSystem setSystem}, and
* {@link #setArchive setArchive} methods respectively.
*
* @since 1.7
*/
public interface DosFileAttributeView
extends BasicFileAttributeView
{
/**
* Returns the name of the attribute view. Attribute views of this type
* have the name {@code "dos"}.
*/
@Override
String name();
/**
* @throws IOException {@inheritDoc}
* @throws SecurityException {@inheritDoc}
*/
@Override
DosFileAttributes readAttributes() throws IOException;
/**
* Updates the value of the read-only attribute.
*
* <p> 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.
*
* @param value
* the new value of the attribute
*
* @throws IOException
* if an I/O error occurs
* @throws SecurityException
* In the case of the default, and a security manager is installed,
* its {@link SecurityManager#checkWrite(String) checkWrite} method
* is invoked to check write access to the file
*/
void setReadOnly(boolean value) throws IOException;
/**
* Updates the value of the hidden attribute.
*
* <p> 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.
*
* @param value
* the new value of the attribute
*
* @throws IOException
* if an I/O error occurs
* @throws SecurityException
* In the case of the default, and a security manager is installed,
* its {@link SecurityManager#checkWrite(String) checkWrite} method
* is invoked to check write access to the file
*/
void setHidden(boolean value) throws IOException;
/**
* Updates the value of the system attribute.
*
* <p> 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.
*
* @param value
* the new value of the attribute
*
* @throws IOException
* if an I/O error occurs
* @throws SecurityException
* In the case of the default, and a security manager is installed,
* its {@link SecurityManager#checkWrite(String) checkWrite} method
* is invoked to check write access to the file
*/
void setSystem(boolean value) throws IOException;
/**
* Updates the value of the archive attribute.
*
* <p> 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.
*
* @param value
* the new value of the attribute
*
* @throws IOException
* if an I/O error occurs
* @throws SecurityException
* In the case of the default, and a security manager is installed,
* its {@link SecurityManager#checkWrite(String) checkWrite} method
* is invoked to check write access to the file
*/
void setArchive(boolean value) throws IOException;
}
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The DosFileAttributeView.java Java example source code
/*
* Copyright (c) 2007, 2013, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation. Oracle designates this
* particular file as subject to the "Classpath" exception as provided
* by Oracle in the LICENSE file that accompanied this code.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
package java.nio.file.attribute;
import java.io.IOException;
/**
* 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 <em>consumer devices.
*
* <p> A {@code DosFileAttributeView} is a {@link 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.
*
* <p> Where dynamic access to file attributes is required, the attributes
* supported by this attribute view are as defined by {@code
* BasicFileAttributeView}, and in addition, the following attributes are
* supported:
* <blockquote>
* <table border="1" cellpadding="8" summary="Supported attributes">
* <tr>
* <th> Name
* <th> Type
* </tr>
* <tr>
* <td> readonly |
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