Java tutorial
/* * Copyright (c) 2007, 2009, 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; /** * A {@code UserPrincipal} representing a <em>group identity</em>, used to * determine access rights to objects in a file system. The exact definition of * a group is implementation specific, but typically, it represents an identity * created for administrative purposes so as to determine the access rights for * the members of the group. Whether an entity can be a member of multiple * groups, and whether groups can be nested, are implementation specified and * therefore not specified. * * @since 1.7 * * @see UserPrincipalLookupService#lookupPrincipalByGroupName */ public interface GroupPrincipal extends UserPrincipal { }