net.sf.jasperreports.engine.util.ElementsVisitorUtils Maven / Gradle / Ivy
/*
* 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.util;
import java.util.Collection;
import net.sf.jasperreports.engine.ElementsVisitor;
import net.sf.jasperreports.engine.JRVisitable;
import net.sf.jasperreports.engine.JRVisitor;
/**
* Utility methods for element visitors.
*
* @author Lucian Chirita ([email protected])
*/
public class ElementsVisitorUtils
{
/**
* Determines whether a visitor is to visit deep/nested elements.
*
* @param visitor the visitor
* @return whether a visitor is to visit deep/nested elements
*/
public static boolean visitDeepElements(JRVisitor visitor)
{
return visitor instanceof ElementsVisitor
&& ((ElementsVisitor) visitor).visitDeepElements();
}
/**
* Visits a collections of elements.
*
* @param visitor the visitor
* @param elements the elements
*/
public static void visitElements(JRVisitor visitor,
Collection elements)
{
if (elements != null)
{
for (JRVisitable element : elements)
{
element.visit(visitor);
}
}
}
}