Bug 136820 viewer supports render report in pdf format
viewer/org.eclipse.birt.report.viewer/birt/WEB-INF/classes/org/eclipse/birt/report/context/BaseAttributeBean.java
*/
	abstract protected void __init( HttpServletRequest request )
			throws Exception;
	abstract protected IViewerReportService getReportService( );
	abstract protected void __finalize( ) throws Throwable;
	/**
	 * Default constructor.
	 */
	public BaseAttributeBean( )
	{
	}
	/**
	 * Constructor.
	 */
	public BaseAttributeBean( HttpServletRequest request )
	{
		try
		{
			init( request );
		}
		catch ( Exception e )
		{
			this.exception = e;
		}
	}
	/**
	 * Template init implementation.
	 * 
	 * @param request
	 * @throws Exception