001    /*
002     * Licensed to the Apache Software Foundation (ASF) under one
003     * or more contributor license agreements.  See the NOTICE file
004     * distributed with this work for additional information
005     * regarding copyright ownership.  The ASF licenses this file
006     * to you under the Apache License, Version 2.0 (the
007     * "License"); you may not use this file except in compliance
008     * with the License.  You may obtain a copy of the License at
009     *
010     *     http://www.apache.org/licenses/LICENSE-2.0
011     *
012     * Unless required by applicable law or agreed to in writing,
013     * software distributed under the License is distributed on an
014     * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
015     * KIND, either express or implied.  See the License for the
016     * specific language governing permissions and limitations
017     * under the License.
018     */
019    package org.apache.shiro.authz.permission;
020    
021    import java.io.Serializable;
022    
023    import org.apache.shiro.authz.Permission;
024    
025    
026    /**
027     * An all <tt>AllPermission</tt> instance is one that always implies any other permission; that is, its
028     * {@link #implies implies} method always returns <tt>true</tt>.
029     *
030     * <p>You should be very careful about the users, roles, and/or groups to which this permission is assigned since
031     * those respective entities will have the ability to do anything.  As such, an instance of this class
032     * is typically only assigned only to "root" or "administrator" users or roles.
033     *
034     * @since 0.1
035     */
036    public class AllPermission implements Permission, Serializable {
037    
038        /**
039         * Always returns <tt>true</tt>, indicating any Subject granted this permission can do anything.
040         *
041         * @param p the Permission to check for implies logic.
042         * @return <tt>true</tt> always, indicating any Subject grated this permission can do anything.
043         */
044        public boolean implies(Permission p) {
045            return true;
046        }
047    }