001    /* EVolve - an Extensible Software Visualization Framework
002     * Copyright (C) 2001-2002 Qin Wang
003     *
004     * This library is free software; you can redistribute it and/or
005     * modify it under the terms of the GNU Library General Public
006     * License as published by the Free Software Foundation; either
007     * version 2 of the License, or (at your option) any later version.
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     * Library General Public License for more details.
013     *
014     * You should have received a copy of the GNU Library General Public
015     * License along with this library; if not, write to the
016     * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
017     * Boston, MA 02111-1307, USA.
018     */
019    
020    /*
021     * EVolve is distributed at http://www.sable.mcgill.ca/EVolve/
022     */
023    
024    package EVolve.visualization;
025    
026    import EVolve.data.*;
027    
028    public abstract class Dimension implements Cloneable{
029        private String name; // name of the dimension
030        protected DataFilter dataFilter; // data filter that gets data for the dimension
031    
032        /**
033         * Gets the name of the dimension.
034         *
035         * @return  name of the dimension
036         */
037        public String getName() {
038            return name;
039        }
040    
041        /**
042         * Sets the data filter.
043         *
044         * @param  dataFilter  data filter
045         */
046        public void setDataFilter(DataFilter dataFilter) {
047            this.name = dataFilter.getName();
048            this.dataFilter = dataFilter;
049        }
050    
051        /**
052         * Gets the data filter.
053         *
054         * @return  data filter
055         */
056        public DataFilter getDataFilter() {
057            return dataFilter;
058        }
059    
060        /**
061         * Gets the data from the element.
062         *
063         * @return  id of the entity if the field is a reference, or the value if the field is a value
064         */
065        public abstract long getField(Element element);
066    
067        public abstract void preVisualize();
068    
069        public int getEntityNumber() {
070            return 0;
071        }
072    
073        public Object clone() {
074            Dimension o = null;
075            try {
076                o = (Dimension)super.clone();
077            } catch (CloneNotSupportedException e) {
078                e.printStackTrace();
079                return null;
080            }
081            o.name = name;
082            o.dataFilter = (dataFilter == null) ? null : (DataFilter) dataFilter.clone();
083            return o;
084        }
085    }