Package net.sf.jasperreports.engine.base

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

/*
* 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.IOException;
import java.io.ObjectInputStream;
import java.util.ArrayList;
import java.util.List;

import net.sf.jasperreports.engine.JRConstants;
import net.sf.jasperreports.engine.JRExpressionCollector;
import net.sf.jasperreports.engine.JRGenericElement;
import net.sf.jasperreports.engine.JRGenericElementParameter;
import net.sf.jasperreports.engine.JRGenericElementType;
import net.sf.jasperreports.engine.JRVisitor;
import net.sf.jasperreports.engine.type.EvaluationTimeEnum;

/**
* A read-only implementation of {@link JRGenericElement}
* that is included in compiled reports.
*
* @author Lucian Chirita (lucianc@users.sourceforge.net)
* @version $Id: JRBaseGenericElement.java 3715 2010-04-08 18:08:49Z teodord $
*/
public class JRBaseGenericElement extends JRBaseElement implements
    JRGenericElement
{

  private static final long serialVersionUID = JRConstants.SERIAL_VERSION_UID;
 
  private JRGenericElementType genericType;
  private List parameters;
  private EvaluationTimeEnum evaluationTimeValue = EvaluationTimeEnum.NOW;
  private String evaluationGroupName;
 
  /**
   * Creates a generic element by copying an existing element.
   *
   * @param element the element to copy
   * @param factory the object factory to be used for creating sub objects
   */
  public JRBaseGenericElement(JRGenericElement element,
      JRBaseObjectFactory factory)
  {
    super(element, factory);

    this.genericType = element.getGenericType();
    this.evaluationTimeValue = element.getEvaluationTimeValue();
    this.evaluationGroupName = element.getEvaluationGroupName();
   
    JRGenericElementParameter[] elementParameters = element.getParameters();
    this.parameters = new ArrayList(elementParameters.length);
    for (int i = 0; i < elementParameters.length; i++)
    {
      JRGenericElementParameter elementParameter = elementParameters[i];
      JRGenericElementParameter parameter = factory.getGenericElementParameter(
          elementParameter);
      this.parameters.add(parameter);
    }
  }

  public JRGenericElementType getGenericType()
  {
    return genericType;
  }

  public JRGenericElementParameter[] getParameters()
  {
    return (JRGenericElementParameter[]) parameters.toArray(
        new JRGenericElementParameter[parameters.size()]);
  }

  public void collectExpressions(JRExpressionCollector collector)
  {
    collector.collect(this);
  }

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

  public String getEvaluationGroupName()
  {
    return evaluationGroupName;
  }

  /**
   * @deprecated Replaced by {@link #getEvaluationTimeValue()}.
   */
  public byte getEvaluationTime()
  {
    return getEvaluationTimeValue().getValue();
  }

  public EvaluationTimeEnum getEvaluationTimeValue()
  {
    return evaluationTimeValue;
  }

 
  /*
   * These fields are only for serialization backward compatibility.
   */
  private int PSEUDO_SERIAL_VERSION_UID = JRConstants.PSEUDO_SERIAL_VERSION_UID; //NOPMD
  /**
   * @deprecated
   */
  private byte evaluationTime;
 
  private void readObject(ObjectInputStream in) throws IOException, ClassNotFoundException
  {
    in.defaultReadObject();

    if (PSEUDO_SERIAL_VERSION_UID < JRConstants.PSEUDO_SERIAL_VERSION_UID_3_7_2)
    {
      evaluationTimeValue = EvaluationTimeEnum.getByValue(evaluationTime);
    }
  }
}
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