001    /*
002     * Copyright (C) 2014 XStream Committers.
003     * All rights reserved.
004     *
005     * Created on 08. January 2014 by Joerg Schaible
006     */
007    package com.thoughtworks.xstream.security;
008    
009    /**
010     * No permission for any type.
011     * <p>
012     * Can be used to skip any existing default permission.
013     * </p>
014     * 
015     * @author J&ouml;rg Schaible
016     * @since 1.4.7
017     */
018    public class NoTypePermission implements TypePermission {
019    
020        /**
021         * @since 1.4.7
022         */
023        public static final TypePermission NONE = new NoTypePermission();
024    
025        public boolean allows(Class type) {
026            throw new ForbiddenClassException(type);
027        }
028    
029        public int hashCode() {
030            return 1;
031        }
032    
033        public boolean equals(Object obj) {
034            return obj != null && obj.getClass() == NoTypePermission.class;
035        }
036    }