Bug 198172 Crosstab - cannot cast from BigDecimal to Double
data/org.eclipse.birt.report.data.adapter/src/org/eclipse/birt/report/data/adapter/impl/DataSetIterator.java
{
		private ICalculator calculator;
		
		DataProcessorWrapper ( ICalculator calculator )
		{
			this.calculator = calculator;
		}
		
		public Object process( Object d ) throws AdapterException
		{
			try
			{
				return this.calculator.calculate( d );
			}
			catch ( BirtException e )
			{
				throw new AdapterException( e.getLocalizedMessage( ));
			}
		}
		
	}
}