JRBaseTimeSeriesDataset.java :  » Report » jasperreports-3.7.2 » net » sf » jasperreports » charts » base » Java Open Source

/*
 * JasperReports - Free Java Reporting Library.
 * Copyright (C) 2001 - 2009 Jaspersoft Corporation. All rights reserved.
 * http://www.jaspersoft.com
 *
 * Unless you have purchased a commercial license agreement from Jaspersoft,
 * the following license terms apply:
 *
 * This program is part of JasperReports.
 *
 * JasperReports is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Lesser General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * JasperReports is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 * GNU Lesser General Public License for more details.
 * 
 * You should have received a copy of the GNU Lesser General Public License
 * along with JasperReports. If not, see <http://www.gnu.org/licenses/>.
 */
package net.sf.jasperreports.charts.base;

import net.sf.jasperreports.charts.JRTimeSeries;
import net.sf.jasperreports.charts.JRTimeSeriesDataset;
import net.sf.jasperreports.engine.JRChartDataset;
import net.sf.jasperreports.engine.JRConstants;
import net.sf.jasperreports.engine.JRExpressionCollector;
import net.sf.jasperreports.engine.base.JRBaseChartDataset;
import net.sf.jasperreports.engine.base.JRBaseObjectFactory;
import net.sf.jasperreports.engine.design.JRVerifier;
import net.sf.jasperreports.engine.design.events.JRChangeEventsSupport;
import net.sf.jasperreports.engine.design.events.JRPropertyChangeSupport;

/**
 * @author Flavius Sana (flavius_sana@users.sourceforge.net)
 * @version $Id: JRBaseTimeSeriesDataset.java 3734 2010-04-12 14:24:34Z lucianc $
 */
public class JRBaseTimeSeriesDataset extends JRBaseChartDataset implements JRTimeSeriesDataset, JRChangeEventsSupport {
  
  /**
   * 
   */
  private static final long serialVersionUID = JRConstants.SERIAL_VERSION_UID;
  
  public static final String PROPERTY_TIME_PERIOD = "timePeriod";
  
  private JRTimeSeries[] timeSeries = null;
  private Class timePeriod;
  
  protected JRBaseTimeSeriesDataset( JRTimeSeriesDataset dataset ){
    super( dataset );
  }
  
  public JRBaseTimeSeriesDataset( JRTimeSeriesDataset dataset, JRBaseObjectFactory factory ){
    super( dataset, factory );
    
    timePeriod = dataset.getTimePeriod();
    JRTimeSeries[] srcTimeSeries = dataset.getSeries();
    
    if( srcTimeSeries != null && srcTimeSeries.length > 0 ){
      timeSeries = new JRTimeSeries[ srcTimeSeries.length ];
      for( int i = 0; i< timeSeries.length; i++ ){
        timeSeries[i] = factory.getTimeSeries( srcTimeSeries[i]);
      }
    }
  }
  
  public JRTimeSeries[] getSeries(){
    return timeSeries;
  }
  
  public Class getTimePeriod(){
    return timePeriod;
  }
  
  public void setTimePeriod( Class timePeriod ){
    Object old = this.timePeriod;
    this.timePeriod = timePeriod;
    getEventSupport().firePropertyChange(PROPERTY_TIME_PERIOD, old, this.timePeriod);
  }


  /** 
   * 
   */
  public byte getDatasetType() {
    return JRChartDataset.TIMESERIES_DATASET;
  }


  /**
   *
   */
  public void collectExpressions(JRExpressionCollector collector)
  {
    collector.collect(this);
  }


  public void validate(JRVerifier verifier)
  {
    verifier.verify(this);
  }

  /**
   * 
   */
  public Object clone() 
  {
    JRBaseTimeSeriesDataset clone = (JRBaseTimeSeriesDataset)super.clone();
    
    if (timeSeries != null)
    {
      clone.timeSeries = new JRTimeSeries[timeSeries.length];
      for(int i = 0; i < timeSeries.length; i++)
      {
        clone.timeSeries[i] = (JRTimeSeries)timeSeries[i].clone();
      }
    }
    
    return clone;
  }
  
  private transient JRPropertyChangeSupport eventSupport;
  
  public JRPropertyChangeSupport getEventSupport()
  {
    synchronized (this)
    {
      if (eventSupport == null)
      {
        eventSupport = new JRPropertyChangeSupport(this);
      }
    }
    
    return eventSupport;
  }

}