1 /* 2 * Copyright (c) 2007, 2011, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. Oracle designates this 8 * particular file as subject to the "Classpath" exception as provided 9 * by Oracle in the LICENSE file that accompanied this code. 10 * 11 * This code is distributed in the hope that it will be useful, but WITHOUT 12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 14 * version 2 for more details (a copy is included in the LICENSE file that 15 * accompanied this code). 16 * 17 * You should have received a copy of the GNU General Public License version 18 * 2 along with this work; if not, write to the Free Software Foundation, 19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 20 * 21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 22 * or visit www.oracle.com if you need additional information or have any 23 * questions. 24 */ 25 26 package java.nio.file.attribute; 27 28 import java.util.Set; 29 30 /** 31 * File attributes associated with files on file systems used by operating systems 32 * that implement the Portable Operating System Interface (POSIX) family of 33 * standards. 34 * 35 * <p> The POSIX attributes of a file are retrieved using a {@link 36 * PosixFileAttributeView} by invoking its {@link 37 * PosixFileAttributeView#readAttributes readAttributes} method. 38 * 39 * @since 1.7 40 */ 41 42 public interface PosixFileAttributes 43 extends BasicFileAttributes 44 { 45 /** 46 * Returns the owner of the file. 47 * 48 * @return the file owner 49 * 50 * @see PosixFileAttributeView#setOwner 51 */ owner()52 UserPrincipal owner(); 53 54 /** 55 * Returns the group owner of the file. 56 * 57 * @return the file group owner 58 * 59 * @see PosixFileAttributeView#setGroup 60 */ group()61 GroupPrincipal group(); 62 63 /** 64 * Returns the permissions of the file. The file permissions are returned 65 * as a set of {@link PosixFilePermission} elements. The returned set is a 66 * copy of the file permissions and is modifiable. This allows the result 67 * to be modified and passed to the {@link PosixFileAttributeView#setPermissions 68 * setPermissions} method to update the file's permissions. 69 * 70 * @return the file permissions 71 * 72 * @see PosixFileAttributeView#setPermissions 73 */ permissions()74 Set<PosixFilePermission> permissions(); 75 } 76