/*
* 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.engine.base;
import java.io.Serializable;
import net.sf.jasperreports.engine.JRConstants;
import net.sf.jasperreports.engine.JRField;
import net.sf.jasperreports.engine.JRPropertiesHolder;
import net.sf.jasperreports.engine.JRPropertiesMap;
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.JRClassLoader;
/**
* @author Teodor Danciu (teodord@users.sourceforge.net)
* @version $Id: JRBaseField.java 3939 2010-08-20 09:52:00Z teodord $
*/
public class JRBaseField implements JRField, Serializable, JRChangeEventsSupport
{
/**
*
*/
private static final long serialVersionUID = JRConstants.SERIAL_VERSION_UID;
public static final String PROPERTY_DESCRIPTION = "description";
/**
*
*/
protected String name;
protected String description;
protected String valueClassName = java.lang.String.class.getName();
protected String valueClassRealName;
protected transient Class valueClass;
protected JRPropertiesMap propertiesMap;
/**
*
*/
protected JRBaseField()
{
this.propertiesMap = new JRPropertiesMap();
}
/**
*
*/
protected JRBaseField(JRField field, JRBaseObjectFactory factory)
{
factory.put(field, this);
name = field.getName();
description = field.getDescription();
valueClassName = field.getValueClassName();
this.propertiesMap = field.getPropertiesMap().cloneProperties();
}
/**
*
*/
public String getName()
{
return this.name;
}
/**
*
*/
public String getDescription()
{
return this.description;
}
/**
*
*/
public void setDescription(String description)
{
Object old = this.description;
this.description = description;
getEventSupport().firePropertyChange(PROPERTY_DESCRIPTION, old, this.description);
}
/**
*
*/
public Class getValueClass()
{
if (valueClass == null)
{
String className = getValueClassRealName();
if (className != null)
{
try
{
valueClass = JRClassLoader.loadClassForName(className);
}
catch(ClassNotFoundException e)
{
throw new JRRuntimeException(e);
}
}
}
return valueClass;
}
/**
*
*/
public String getValueClassName()
{
return this.valueClassName;
}
/**
*
*/
private String getValueClassRealName()
{
if (valueClassRealName == null)
{
valueClassRealName = JRClassLoader.getClassRealName(valueClassName);
}
return valueClassRealName;
}
public boolean hasProperties()
{
return propertiesMap != null && propertiesMap.hasProperties();
}
public JRPropertiesMap getPropertiesMap()
{
return propertiesMap;
}
public JRPropertiesHolder getParentProperties()
{
return null;
}
/**
*
*/
public Object clone()
{
JRBaseField clone = null;
try
{
clone = (JRBaseField)super.clone();
}
catch (CloneNotSupportedException e)
{
throw new JRRuntimeException(e);
}
if (propertiesMap != null)
{
clone.propertiesMap = (JRPropertiesMap)propertiesMap.clone();
}
return clone;
}
private transient JRPropertyChangeSupport eventSupport;
public JRPropertyChangeSupport getEventSupport()
{
synchronized (this)
{
if (eventSupport == null)
{
eventSupport = new JRPropertyChangeSupport(this);
}
}
return eventSupport;
}
}