001/**
002 * www.jcoverage.com
003 * Copyright (C)2003 jcoverage ltd.
004 *
005 * This file is part of jcoverage.
006 *
007 * jcoverage is free software; you can redistribute it and/or modify
008 * it under the terms of the GNU General Public License as published
009 * by the Free Software Foundation; either version 2 of the License,
010 * or (at your option) any later version.
011 *
012 * jcoverage is distributed in the hope that it will be useful, but
013 * WITHOUT ANY WARRANTY; without even the implied warranty of
014 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
015 * General Public License for more details.
016 *
017 * You should have received a copy of the GNU General Public License
018 * along with jcoverage; if not, write to the Free Software
019 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
020 * USA
021 *
022 */
023package com.jcoverage.reporting;
024
025import org.apache.log4j.Logger;
026
027/**
028 * Instances of this class represent an information type.
029 * Like a database column, it has a name and a type.
030 * <p>
031 * A field's value can be defined to be any Java object, an int, double or boolean.
032 */
033public class Column {
034  
035  static Logger logger=Logger.getLogger(Column.class);
036  
037  String label,classid,description;
038  Class type;
039
040  public Column(String label,Class type) {
041    this(label,"",type);
042  }
043
044  public Column(String label,String description,Class type) {
045    if (Object.class.isAssignableFrom(type) || type.equals(Integer.TYPE) || type.equals(Boolean.TYPE) || type.equals(Double.TYPE)) {
046      this.label=label;
047      this.description=description;
048      this.type=type;
049    } else {
050      throw new IllegalArgumentException("Attribute type cannot be "+type);
051    }
052  }
053
054  public boolean isAcceptableValue(Object value) {
055    if (type.equals(Integer.TYPE) && value.getClass().equals(Integer.class)) {
056      return true;
057    }
058    if (type.equals(Double.TYPE) && value.getClass().equals(Double.class)) {
059      return true;
060    }
061    if (type.equals(Boolean.TYPE) && value.getClass().equals(Boolean.class)) {
062      return true;
063    }
064    return this.type.isAssignableFrom(value.getClass());
065  }
066
067  public Object getType() {
068    return type;
069  }
070
071  public String getLabel() {
072    return label;
073  }
074
075  public String getDescription() {
076    return description;
077  }
078
079  public String toString() {
080    return "[" + getLabel() + "]";
081  }
082
083}