Bug 210507 Enhance Report engine to support multiple view
engine/org.eclipse.birt.report.engine/src/org/eclipse/birt/report/engine/ir/Report.java
.get( handle );
		}
		return null;
	}
	/**
	 * set report item id to report item instance
	 * 
	 * @param id
	 *            the report item component id
	 * @param rptItem
	 *            the report item
	 */
	public void setReportItemInstanceID( long id, ReportElementDesign rptElement )
	{
		if ( mapReportItemIDtoInstance == null )
		{
			mapReportItemIDtoInstance = new HashMap( );
		}
		mapReportItemIDtoInstance.put( new Long( id ), rptElement );
	}
	/**
	 * return the report item with the specific component ID
	 * 
	 * @param id
	 *            the component id
	 * @return the report item instance
	 */
	public ReportElementDesign getReportItemByID( long id )
	{
		assert mapReportItemIDtoInstance != null;