package calculator2003;

	/** Strategy to use when a number key is hit and it is appropriate
	 * to just accumulate values. 
	 * 
	 * @author jbergin
	 *
	 * Code Smell: Should be a singleton -- stateless.
	 */
	public class AccumulateStrategy implements NumberStrategy
	{	public AccumulateStrategy(CalculatorModel calc)
		{	calculator = calc;
		}
		
		public void apply(int value)
		{	int newValue = calculator.value() * 10 + value;
			calculator.setDisplay(newValue);
		}
		
		private CalculatorModel calculator = null;
	}