001/*
002 * (C) Copyright 2006-2008 Nuxeo SAS (http://nuxeo.com/) and contributors.
003 *
004 * All rights reserved. This program and the accompanying materials
005 * are made available under the terms of the GNU Lesser General Public License
006 * (LGPL) version 2.1 which accompanies this distribution, and is available at
007 * http://www.gnu.org/licenses/lgpl.html
008 *
009 * This library is distributed in the hope that it will be useful,
010 * but WITHOUT ANY WARRANTY; without even the implied warranty of
011 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
012 * Lesser General Public License for more details.
013 *
014 * Contributors:
015 *     bstefanescu
016 *
017 * $Id$
018 */
019
020package org.nuxeo.ecm.webengine.security.guards;
021
022import org.nuxeo.ecm.webengine.security.Guard;
023import org.nuxeo.runtime.model.Adaptable;
024
025/**
026 * @author <a href="mailto:bs@nuxeo.com">Bogdan Stefanescu</a>
027 */
028public class Not implements Guard {
029
030    protected final Guard perm;
031
032    public Not(Guard guard) {
033        perm = guard;
034    }
035
036    public boolean check(Adaptable context) {
037        return !perm.check(context);
038    }
039
040    @Override
041    public String toString() {
042        return "NOT " + perm;
043    }
044
045}