package CountAPPC;

public abstract class CountComponent
{
	int count = 0;
	
	// classes to be defined by the extending inner class
	public abstract Object get_host();
	public abstract void expected_pushOp(Object passed);
	public abstract Object expected_popOp();

	// real component methods
	public void pushOp(Object passed)
	{
		count++;
		System.out.println("current count: " + count);
		actual_pushOp(passed);
	}
	public Object popOp()
	{
		count--;
		System.out.println("current count: " + count);
		return actual_popOp();
	}

	public abstract void actual_pushOp(Object passed);
	public abstract Object actual_popOp();
	
}