Package net.sf.jasperreports.engine.base

Source Code of net.sf.jasperreports.engine.base.JRBaseComponentElement

/*
* 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 net.sf.jasperreports.engine.JRComponentElement;
import net.sf.jasperreports.engine.JRConstants;
import net.sf.jasperreports.engine.JRExpressionCollector;
import net.sf.jasperreports.engine.JRVisitor;
import net.sf.jasperreports.engine.component.Component;
import net.sf.jasperreports.engine.component.ComponentKey;
import net.sf.jasperreports.engine.component.ComponentManager;
import net.sf.jasperreports.engine.component.ComponentsEnvironment;

/**
* A read-only {@link JRComponentElement} implementation which is included
* in compiled reports.
*
* @author Lucian Chirita (lucianc@users.sourceforge.net)
* @version $Id: JRBaseComponentElement.java 3033 2009-08-27 11:46:22Z teodord $
*/
public class JRBaseComponentElement extends JRBaseElement implements
    JRComponentElement
{

  private static final long serialVersionUID = JRConstants.SERIAL_VERSION_UID;

  private ComponentKey componentKey;
  private Component component;
 
  public JRBaseComponentElement(JRComponentElement element, JRBaseObjectFactory factory)
  {
    super(element, factory);
   
    componentKey = element.getComponentKey();
   
    ComponentManager manager = ComponentsEnvironment.getComponentManager(componentKey);
    component = manager.getComponentCompiler().toCompiledComponent(
        element.getComponent(), factory);
  }

  public Component getComponent()
  {
    return component;
  }

  public ComponentKey getComponentKey()
  {
    return componentKey;
  }

  public void collectExpressions(JRExpressionCollector collector)
  {
    ComponentManager manager = ComponentsEnvironment.getComponentManager(componentKey);
    manager.getComponentCompiler().collectExpressions(component, collector);
  }

  public void visit(JRVisitor visitor)
  {
    visitor.visitComponentElement(this);
  }

}
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