001    /*
002     * 
003     * $Revision$ $Date$
004     *
005     * This file is part of ***  M y C o R e  ***
006     * See http://www.mycore.de/ for details.
007     *
008     * This program is free software; you can use it, redistribute it
009     * and / or modify it under the terms of the GNU General Public License
010     * (GPL) as published by the Free Software Foundation; either version 2
011     * of the License or (at your option) any later version.
012     *
013     * This program is distributed in the hope that it will be useful, but
014     * WITHOUT ANY WARRANTY; without even the implied warranty of
015     * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
016     * GNU General Public License for more details.
017     *
018     * You should have received a copy of the GNU General Public License
019     * along with this program, in a file called gpl.txt or license.txt.
020     * If not, write to the Free Software Foundation Inc.,
021     * 59 Temple Place - Suite 330, Boston, MA  02111-1307 USA
022     */
023    
024    package org.mycore.access.mcrimpl;
025    
026    import java.text.DateFormat;
027    import java.text.SimpleDateFormat;
028    import java.util.Date;
029    
030    import org.jdom.Attribute;
031    import org.jdom.Element;
032    import org.mycore.parsers.bool.MCRCondition;
033    import org.mycore.parsers.bool.MCRConditionVisitor;
034    
035    /**
036     * Implementation of a (date > xy) clause
037     * 
038     * @author Matthias Kramm
039     */
040    class MCRDateAfterClause implements MCRCondition {
041        private Date date;
042        private static DateFormat dateformat = new SimpleDateFormat("dd.MM.yyyy");
043    
044        MCRDateAfterClause(Date date) {
045            this.date = date;
046        }
047    
048        public boolean evaluate(Object o) {
049            MCRAccessData data = (MCRAccessData) o;
050    
051            return data.getDate().after(this.date);
052        }
053    
054        public String toString() {
055            return "date > " + dateformat.format(date) + " ";
056        }
057    
058        public Element toXML() {
059            Element cond = new Element("condition");
060            cond.setAttribute("field", "date");
061            cond.setAttribute("operator", ">");
062            cond.setAttribute("value", dateformat.format(date));
063            return cond;
064        }
065    
066        public Element info() {
067            Element el = new Element("info");
068            el.setAttribute(new Attribute("type", "DATE"));
069            return el;
070        }
071    
072        public void accept(MCRConditionVisitor visitor) {
073            visitor.visitType(info());
074        }
075    };