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Quelle Guard.java Sprache: JAVA |
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/* * Copyright (c) 1997, 2022, 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.security; /** * <p> This interface represents a guard, which is an object that is used * to protect access to another object. * * <p>This interface contains a single method, {@code checkGuard}, * with a single {@code object} argument. {@code checkGuard} is * invoked (by the GuardedObject {@code getObject} method) * to determine whether to allow access to the object. * * @see GuardedObject * * @author Roland Schemers * @author Li Gong * @since 1.2 */ public interface Guard { /** * Determines whether to allow access to the guarded object * {@code object}. Returns silently if access is allowed. * Otherwise, throws a {@code SecurityException}. * * @param object the object being protected by the guard. * * @throws SecurityException if access is denied. * */ void checkGuard(Object object) throws SecurityException; }
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2026-04-02