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 java.util.*;
026
027import org.apache.log4j.Logger;
028
029/**
030 *
031 */
032public abstract class AbstractReport implements Report {
033  
034  static Logger logger=Logger.getLogger(AbstractReport.class);
035
036  Collator collator;
037  Line line;
038  
039  public void setCollator(Collator collator) {
040    this.collator=collator;
041  }
042
043  public Collator getCollator() {
044    return collator;
045  }
046
047  public final Page createFrontPage() {
048    Line line=createMasterLine();
049    if (line==null) {
050      throw new NullPointerException("This class ("+getClass()+") must return a valid non-null object from the instantiateMasterLine method");
051    }
052    return line.openDetailPage();
053  }
054
055  public final Line createMasterLine() {
056    line=instantiateMasterLine();
057    if (line!=null) {
058      line.setReport(this);
059    }
060    return line;
061  }
062
063  protected Line instantiateMasterLine() {
064    return null;
065  }
066
067}