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/*
 * JasperReports - Free Java Reporting Library.
 * Copyright (C) 2001 - 2011 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 .
 */
package net.sf.jasperreports.engine.fill;

import java.util.LinkedHashMap;
import java.util.Map;
import java.util.Set;

import net.sf.jasperreports.engine.JRConstants;
import net.sf.jasperreports.engine.JRGenericElementType;
import net.sf.jasperreports.engine.JRGenericPrintElement;
import net.sf.jasperreports.engine.PrintElementVisitor;

/**
 * Implementation of {@link JRGenericPrintElement} that uses
 * a {@link JRTemplateGenericElement} instance to
 * store common attributes. 
 * 
 * @author Lucian Chirita ([email protected])
 * @version $Id: JRTemplateGenericPrintElement.java 5407 2012-05-22 13:27:32Z lucianc $
 * @see JRTemplateGenericPrintElement
 */
public class JRTemplateGenericPrintElement extends JRTemplatePrintElement
		implements JRGenericPrintElement
{

	private static final long serialVersionUID = JRConstants.SERIAL_VERSION_UID;

	private Map parameters;
	
	/**
	 * Creates a generic print element.
	 * 
	 * @param template the template to use for the element
	 * @deprecated provide a source Id via {@link #JRTemplateGenericPrintElement(JRTemplateGenericElement, int)}
	 */
	public JRTemplateGenericPrintElement(JRTemplateGenericElement template)
	{
		super(template);
		
		parameters = new LinkedHashMap();
	}
	
	/**
	 * Creates a generic print element.
	 * 
	 * @param template the template to use for the element
	 * @param sourceElementId the Id of the source element
	 */
	public JRTemplateGenericPrintElement(JRTemplateGenericElement template, int sourceElementId)
	{
		super(template, sourceElementId);
		
		parameters = new LinkedHashMap();
	}
	
	/**
	 * Creates a generic print element.
	 * 
	 * @param template the template to use for the element
	 * @param sourceElementId the Id of the source element
	 * @param parameterCount the number of parameters that the element will have
	 */
	public JRTemplateGenericPrintElement(JRTemplateGenericElement template, int sourceElementId,
			int parameterCount)
	{
		super(template, sourceElementId);
		
		parameters = new LinkedHashMap(parameterCount * 4 / 3, 0.75f);
	}

	/**
	 * Returns the generic type specified by the element template.
	 * 
	 * @see JRTemplateGenericElement#getGenericType()
	 */
	public JRGenericElementType getGenericType()
	{
		return ((JRTemplateGenericElement) template).getGenericType();
	}

	public Set getParameterNames()
	{
		return parameters.keySet();
	}

	public Object getParameterValue(String name)
	{
		return parameters.get(name);
	}

	public boolean hasParameter(String name)
	{
		return parameters.containsKey(name);
	}

	public void setParameterValue(String name, Object value)
	{
		parameters.put(name, value);
	}

	public  void accept(PrintElementVisitor visitor, T arg)
	{
		visitor.visit(this, arg);
	}

}