/*
* 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;
import net.sf.jasperreports.engine.xml.JRXmlTemplateLoader;
/**
* A template included in a report.
* <p/>
* A template inclusion in a report consits of an expression that should be
* resolved at runtime to a {@link JRTemplate JRTemplate} instance.
*
* @author Lucian Chirita (lucianc@users.sourceforge.net)
* @version $Id: JRReportTemplate.java 3033 2009-08-27 11:46:22Z teodord $
* @see JRReport#getTemplates()
*/
public interface JRReportTemplate
{
/**
* Returns the template source expression.
* <p/>
* The expression type should be (compatible with) one of <code>java.lang.String</code>,
* <code>java.io.File</code>, <code>java.net.URL</code>, <code>java.io.InputStream</code>
* (in which cases the template is loaded via {@link JRXmlTemplateLoader}) or
* <code>net.sf.jasperreports.engine.JRTemplate</code> .
*
* @return the template source expression
*/
JRExpression getSourceExpression();
}