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Free Java Reporting Library
/*
* JasperReports - Free Java Reporting Library.
* Copyright (C) 2001 - 2022 TIBCO Software Inc. 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 .
*/
package net.sf.jasperreports.engine.design;
import net.sf.jasperreports.engine.JRConstants;
import net.sf.jasperreports.engine.JRExpression;
import net.sf.jasperreports.engine.JRReportTemplate;
import net.sf.jasperreports.engine.base.JRBaseReportTemplate;
import net.sf.jasperreports.engine.design.events.JRChangeEventsSupport;
import net.sf.jasperreports.engine.design.events.JRPropertyChangeSupport;
/**
* {@link JRReportTemplate} implementation to be used at report design time.
*
* @author Lucian Chirita ([email protected])
*/
public class JRDesignReportTemplate extends JRBaseReportTemplate implements JRChangeEventsSupport
{
private static final long serialVersionUID = JRConstants.SERIAL_VERSION_UID;
public static final String PROPERTY_SOURCE_EXPRESSION = "sourceExpression";
/**
* Creates an empty report template.
*/
public JRDesignReportTemplate()
{
super();
}
/**
* Creates a report template for a template source expression.
*/
public JRDesignReportTemplate(JRExpression sourceExpression)
{
super();
this.sourceExpression = sourceExpression;
}
/**
* Sets the template source expression.
*
* @param sourceExpression the template source expression
* @see #getSourceExpression()
*/
public void setSourceExpression(JRExpression sourceExpression)
{
Object old = this.sourceExpression;
this.sourceExpression = sourceExpression;
getEventSupport().firePropertyChange(PROPERTY_SOURCE_EXPRESSION, old, this.sourceExpression);
}
@Override
public Object clone()
{
JRDesignReportTemplate clone = (JRDesignReportTemplate)super.clone();
clone.eventSupport = null;
return clone;
}
private transient JRPropertyChangeSupport eventSupport;
@Override
public JRPropertyChangeSupport getEventSupport()
{
synchronized (this)
{
if (eventSupport == null)
{
eventSupport = new JRPropertyChangeSupport(this);
}
}
return eventSupport;
}
}