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Free Java Reporting Library
/*
* JasperReports - Free Java Reporting Library.
* Copyright (C) 2001 - 2019 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.base;
import java.io.Serializable;
import net.sf.jasperreports.engine.JRConstants;
import net.sf.jasperreports.engine.JRExpression;
import net.sf.jasperreports.engine.JRPropertyExpression;
import net.sf.jasperreports.engine.JRRuntimeException;
import net.sf.jasperreports.engine.design.events.JRChangeEventsSupport;
import net.sf.jasperreports.engine.design.events.JRPropertyChangeSupport;
import net.sf.jasperreports.engine.util.JRCloneUtils;
/**
* Base implementation of {@link JRPropertyExpression}.
*
* @author Lucian Chirita ([email protected])
*/
public class JRBasePropertyExpression implements JRPropertyExpression, Serializable, JRChangeEventsSupport
{
private static final long serialVersionUID = JRConstants.SERIAL_VERSION_UID;
public static final String PROPERTY_NAME = "name";
public static final String PROPERTY_VALUE_EXPRESSION = "valueExpression";
/**
* @deprecated Replaced by {@link #PROPERTY_VALUE_EXPRESSION}.
*/
public static final String pROPERTY_VALUE_EXPRESSION = PROPERTY_VALUE_EXPRESSION;
private String name;
private JRExpression valueExpression;
protected JRBasePropertyExpression()
{
//empty
}
public JRBasePropertyExpression(JRPropertyExpression propertyExpression,
JRBaseObjectFactory factory)
{
this.name = propertyExpression.getName();
this.valueExpression = factory.getExpression(propertyExpression.getValueExpression());
}
@Override
public String getName()
{
return name;
}
@Override
public void setName(String name)
{
Object old = this.name;
this.name = name;
getEventSupport().firePropertyChange(PROPERTY_NAME, old, this.name);
}
@Override
public JRExpression getValueExpression()
{
return valueExpression;
}
protected void setValueExpression(JRExpression valueExpression)
{
Object old = this.valueExpression;
this.valueExpression = valueExpression;
getEventSupport().firePropertyChange(PROPERTY_VALUE_EXPRESSION, old, this.valueExpression);
}
@Override
public Object clone()
{
JRBasePropertyExpression clone = null;
try
{
clone = (JRBasePropertyExpression) super.clone();
}
catch (CloneNotSupportedException e)
{
throw new JRRuntimeException(e);
}
clone.valueExpression = JRCloneUtils.nullSafeClone(valueExpression);
clone.eventSupport = null;
return clone;
}
private transient JRPropertyChangeSupport eventSupport;
@Override
public JRPropertyChangeSupport getEventSupport()
{
synchronized (this)
{
if (eventSupport == null)
{
eventSupport = new JRPropertyChangeSupport(this);
}
}
return eventSupport;
}
}