| /* |
| * Copyright (c) 1999, 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 |
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| */ |
| |
| package com.sun.security.auth; |
| |
| /** |
| * An object that implements the {@code java.security.Principal} |
| * interface typically also implements this interface to provide |
| * a means for comparing that object to a specified {@code Subject}. |
| * |
| * <p> The comparison is achieved via the {@code implies} method. |
| * The implementation of the {@code implies} method determines |
| * whether this object "implies" the specified {@code Subject}. |
| * One example application of this method may be for |
| * a "group" object to imply a particular {@code Subject} |
| * if that {@code Subject} belongs to the group. |
| * Another example application of this method would be for |
| * "role" object to imply a particular {@code Subject} |
| * if that {@code Subject} is currently acting in that role. |
| * |
| * <p> Although classes that implement this interface typically |
| * also implement the {@code java.security.Principal} interface, |
| * it is not required. In other words, classes may implement the |
| * {@code java.security.Principal} interface by itself, |
| * the {@code PrincipalComparator} interface by itself, |
| * or both at the same time. |
| * |
| * @see java.security.Principal |
| * @see javax.security.auth.Subject |
| */ |
| public interface PrincipalComparator { |
| /** |
| * Check if the specified {@code Subject} is implied by |
| * this object. |
| * |
| * @return true if the specified {@code Subject} is implied by |
| * this object, or false otherwise. |
| */ |
| boolean implies(javax.security.auth.Subject subject); |
| } |