IPrivilege.java

/*
 *  Copyright 2010 Richard Nichols.
 * 
 *  Licensed under the Apache License, Version 2.0 (the "License");
 *  you may not use this file except in compliance with the License.
 *  You may obtain a copy of the License at
 * 
 *       http://www.apache.org/licenses/LICENSE-2.0
 * 
 *  Unless required by applicable law or agreed to in writing, software
 *  distributed under the License is distributed on an "AS IS" BASIS,
 *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *  See the License for the specific language governing permissions and
 *  limitations under the License.
 *  under the License.
 */

package com.visural.wicket.security;

/**
 * A privilege is any condition that can be evaluated with respect to a {@link IClient}.
 * 
 * @version $Id: IPrivilege.java 153 2010-04-09 07:13:53Z tibes80@gmail.com $
 * @author Richard Nichols
 */
public interface IPrivilege<T extends IClient> {

    /**
     * Determine whether the privilege applies to the client.
     * @param client
     * @return
     */
    boolean isGrantedToClient(T client);

    // -----------------

    public static final IPrivilege NULL = new IPrivilege() {
        public boolean isGrantedToClient(IClient client) {
            return true;
        }
    };
}