Bug 212478 Exception occurs when preview the table including a Autotext
engine/org.eclipse.birt.report.engine/src/org/eclipse/birt/report/engine/data/dte/ReportQueryBuilder.java
* create input parameter bindings
		 * 
		 * @param iter
		 *            parameter bindings iterator
		 * @return a list of input parameter bindings
		 */
		protected ArrayList createParamBindings( Iterator iter )
		{
			ArrayList list = new ArrayList( );
			if ( iter != null )
			{
				while ( iter.hasNext( ) )
				{
					ParamBindingHandle modelParamBinding = (ParamBindingHandle) iter
							.next( );
					IInputParameterBinding binding = createParamBinding( modelParamBinding );
					if ( binding != null )
					{
						list.add( binding );
					}
				}
			}
			return list;
		}
		/**
		 * converts interval string values to integer values
		 */
		protected int parseInterval( String interval )
		{
			if ( DesignChoiceConstants.INTERVAL_YEAR.equals( interval ) )