BigDecimalBenchmark.java

public class BigDecimalBenchmark extends SimpleBenchmark
{
    private static final BigDecimal QUANTITY_DIVISOR = new BigDecimal(100);
    private static final BigDecimal PRICE_DIVISOR = new BigDecimal(1000000);
    private static final BigDecimal QUANTITY_INCREMENT = new BigDecimal("0.001");
    private static final BigDecimal PRICE_INCREMENT = new BigDecimal("0.00001");

    @Override
    protected void setUp() throws Exception
    {
    }

    public long timeQuantityDivisor(final int reps)
    {
        int signum = 0;

        for(int i = 0; i < reps; i++)
        {
            signum += new BigDecimal(Math.abs(i)).divide(QUANTITY_DIVISOR).setScale(5).signum();
        }

        return signum;
    }

    public long timePriceDivisor(final int reps)
    {
        int signum = 0;

        for(int i = 0; i < reps; i++)
        {
            signum += new BigDecimal(i).divide(PRICE_DIVISOR).setScale(6).signum();
        }

        return signum;
    }

    public long timeQuantityMultiplier(final int reps)
    {
        int signum = 0;

        for(int i = 0; i < reps; i++)
        {
            signum += QUANTITY_INCREMENT.multiply(BigDecimal.valueOf(i)).signum();
        }

        return signum;
    }

    public long timePriceMultiplier(final int reps)
    {
        int signum = 0;

        for(int i = 0; i < reps; i++)
        {
            signum += PRICE_INCREMENT.multiply(BigDecimal.valueOf(i)).signum();
        }

        return signum;
    }
}