net.sf.jasperreports.engine.design.DesignExpressionReturnValue Maven / Gradle / Ivy
Go to download
Show more of this group Show more artifacts with this name
Show all versions of jasperreports Show documentation
Show all versions of jasperreports Show documentation
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.design;
import net.sf.jasperreports.engine.ExpressionReturnValue;
import net.sf.jasperreports.engine.JRConstants;
import net.sf.jasperreports.engine.JRExpression;
import net.sf.jasperreports.engine.util.JRCloneUtils;
/**
* Implementation of {@link net.sf.jasperreports.engine.ExpressionReturnValue ExpressionReturnValue}
* to be used for report design purposes.
*
* @author Teodor Danciu ([email protected])
*/
public class DesignExpressionReturnValue extends DesignCommonReturnValue implements ExpressionReturnValue
{
/**
*
*/
private static final long serialVersionUID = JRConstants.SERIAL_VERSION_UID;
public static final String PROPERTY_EXPRESSION = "expression";
/**
* The expression producing the value to copy.
*/
protected JRExpression expression;
/**
* Returns the expression whose value should be copied.
*
* @return the expression whose value should be copied.
*/
@Override
public JRExpression getExpression()
{
return expression;
}
/**
* Sets the expression.
*
* @param expression the expression
* @see net.sf.jasperreports.engine.ExpressionReturnValue#getExpression()
*/
public void setExpression(JRExpression expression)
{
Object old = this.expression;
this.expression = expression;
getEventSupport().firePropertyChange(PROPERTY_EXPRESSION, old, this.expression);
}
@Override
public Object clone()
{
DesignExpressionReturnValue clone = (DesignExpressionReturnValue)super.clone();
clone.expression = JRCloneUtils.nullSafeClone(expression);
return clone;
}
}