/*
* 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.design;
import net.sf.jasperreports.charts.JRDataRange;
import net.sf.jasperreports.charts.base.JRBaseDataRange;
import net.sf.jasperreports.engine.JRConstants;
import net.sf.jasperreports.engine.JRExpression;
import net.sf.jasperreports.engine.design.events.JRChangeEventsSupport;
import net.sf.jasperreports.engine.design.events.JRPropertyChangeSupport;
/**
* Contains a range of values. Used to specify the set of acceptable values
* for a meter or thermometer, and to divide those charts up into subsections.
*
* @author Barry Klawans (bklawans@users.sourceforge.net)
* @version $Id: JRDesignDataRange.java 3032 2009-08-27 11:32:28Z teodord $
*/
public class JRDesignDataRange extends JRBaseDataRange implements JRChangeEventsSupport
{
/**
*
*/
private static final long serialVersionUID = JRConstants.SERIAL_VERSION_UID;
public static final String PROPERTY_HIGH_EXPRESSION = "highExpression";
public static final String PROPERTY_LOW_EXPRESSION = "lowExpression";
/**
* Constructs a new data range that is a copy of an existing one.
*
* @param dataRange the range to copy
*/
public JRDesignDataRange(JRDataRange dataRange)
{
super(dataRange);
}
/**
* Sets the low expression of the range. The low expression is
* evaluted to get the lower bound of the range.
*
* @param lowExpression used to get the lower bound of the range
*/
public void setLowExpression(JRExpression lowExpression)
{
Object old = this.lowExpression;
this.lowExpression = lowExpression;
getEventSupport().firePropertyChange(PROPERTY_LOW_EXPRESSION, old, this.lowExpression);
}
/**
* Sets the high expression of the range. The high expression is
* used to get the upper bound of the range.
*
* @param highExpression used to get the upper bound of the range
*/
public void setHighExpression(JRExpression highExpression)
{
Object old = this.highExpression;
this.highExpression = highExpression;
getEventSupport().firePropertyChange(PROPERTY_HIGH_EXPRESSION, old, this.highExpression);
}
private transient JRPropertyChangeSupport eventSupport;
public JRPropertyChangeSupport getEventSupport()
{
synchronized (this)
{
if (eventSupport == null)
{
eventSupport = new JRPropertyChangeSupport(this);
}
}
return eventSupport;
}
}