FileOwnerAttributeView.java revision 908
893N/A * Copyright 2007-2009 Sun Microsystems, Inc. All Rights Reserved. 893N/A * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 893N/A * This code is free software; you can redistribute it and/or modify it 893N/A * under the terms of the GNU General Public License version 2 only, as 893N/A * published by the Free Software Foundation. Sun designates this 893N/A * particular file as subject to the "Classpath" exception as provided 893N/A * by Sun in the LICENSE file that accompanied this code. 893N/A * This code is distributed in the hope that it will be useful, but WITHOUT 893N/A * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 893N/A * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 893N/A * version 2 for more details (a copy is included in the LICENSE file that 893N/A * accompanied this code). 893N/A * You should have received a copy of the GNU General Public License version 893N/A * 2 along with this work; if not, write to the Free Software Foundation, 893N/A * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 893N/A * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, 893N/A * CA 95054 USA or visit www.sun.com if you need additional information or 893N/A * A file attribute view that supports reading or updating the owner of a file. 893N/A * This file attribute view is intended for file system implementations that 893N/A * support a file attribute that represents an identity that is the owner of 893N/A * the file. Often the owner of a file is the identity of the entity that 893N/A * <p> The {@link #getOwner getOwner} or {@link #setOwner setOwner} methods may 893N/A * be used to read or update the owner of the file. 893N/A * <p> Where dynamic access to file attributes is required, the owner attribute 893N/A * is identified by the name {@code "owner"}, and the value of the attribute is 893N/A * a {@link UserPrincipal}. The {@link #readAttributes readAttributes}, {@link 893N/A * #getAttribute getAttribute} and {@link #setAttribute setAttributes} methods 893N/A * may be used to read or update the file owner. 893N/A * Returns the name of the attribute view. Attribute views of this type 893N/A * have the name {@code "owner"}. 893N/A * <p> It it implementation specific if the file owner can be a {@link 893N/A * GroupPrincipal group}. 893N/A * @return the file owner 908N/A * if an I/O error occurs 893N/A * @throws SecurityException 893N/A * In the case of the default provider, a security manager is 893N/A * installed, and it denies {@link 893N/A * RuntimePermission}<tt>("accessUserInformation")</tt> or its 893N/A * {@link SecurityManager#checkRead(String) checkRead} method 893N/A * denies read access to the file. 893N/A * Updates the file owner. 893N/A * <p> It it implementation specific if the file owner can be a {@link 893N/A * GroupPrincipal group}. To ensure consistent and correct behavior 893N/A * across platforms it is recommended that this method should only be used 893N/A * to set the file owner to a user principal that is not a group. 908N/A * if an I/O error occurs, or the {@code owner} parameter is a 893N/A * group and this implementation does not support setting the owner 893N/A * @throws SecurityException 893N/A * In the case of the default provider, a security manager is 893N/A * installed, and it denies {@link 893N/A * RuntimePermission}<tt>("accessUserInformation")</tt> or its 893N/A * {@link SecurityManager#checkWrite(String) checkWrite} method 893N/A * denies write access to the file.