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 */ 023 package com.jcoverage.reporting; 024 025 import java.util.*; 026 027 import org.apache.log4j.Logger; 028 029 /** 030 * 031 */ 032 public 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 }