Showing the changes to java/pkg/java/security/Guard.java (1 of 18352 files). Show all
Unified · Split
| @@ -0,0 +1,56 @@ | |||
| 1 | /* | ||
| 2 | * Copyright (c) 1997, 1998, 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.security; | ||
| 27 | |||
| 28 | /** | ||
| 29 | * <p> This interface represents a guard, which is an object that is used | ||
| 30 | * to protect access to another object. | ||
| 31 | * | ||
| 32 | * <p>This interface contains a single method, <code>checkGuard</code>, | ||
| 33 | * with a single <code>object</code> argument. <code>checkGuard</code> is | ||
| 34 | * invoked (by the GuardedObject <code>getObject</code> method) | ||
| 35 | * to determine whether or not to allow access to the object. | ||
| 36 | * | ||
| 37 | * @see GuardedObject | ||
| 38 | * | ||
| 39 | * @author Roland Schemers | ||
| 40 | * @author Li Gong | ||
| 41 | */ | ||
| 42 | |||
| 43 | public interface Guard { | ||
| 44 | |||
| 45 | /** | ||
| 46 | * Determines whether or not to allow access to the guarded object | ||
| 47 | * <code>object</code>. Returns silently if access is allowed. | ||
| 48 | * Otherwise, throws a SecurityException. | ||
| 49 | * | ||
| 50 | * @param object the object being protected by the guard. | ||
| 51 | * | ||
| 52 | * @exception SecurityException if access is denied. | ||
| 53 | * | ||
| 54 | */ | ||
| 55 | void checkGuard(Object object) throws SecurityException; | ||
| 56 | } | ||