public static DayTimeDurationValue Multiply(DayTimeDurationValue a, double b)
{
if (Double.IsNaN(b) || Double.IsNegativeInfinity(b) || Double.IsPositiveInfinity(b))
throw new XQueryException(Properties.Resources.FOCA0005);
long timespan = (long)(a.LowPartValue.Ticks * b);
return new DayTimeDurationValue(new TimeSpan(timespan));
}
public static DayTimeDurationValue Divide(DayTimeDurationValue a, double b)
{
if (b == 0.0)
throw new XQueryException(Properties.Resources.FOAR0001);
if (Double.IsNaN(b))
throw new XQueryException(Properties.Resources.FOCA0005);
long timespan = (long)(a.LowPartValue.Ticks / b);
return new DayTimeDurationValue(new TimeSpan(timespan));
}
public static TimeValue Add(TimeValue tm, DayTimeDurationValue duration)
{
DateTimeValue dat;
if (tm.IsLocal)
dat = new DateTimeValue(false, DateTime.Today, tm.Value.DateTime);
else
dat = new DateTimeValue(false, DateTime.Today, tm.Value.DateTime, tm.Value.Offset);
DateTime dt = DateTimeValue.Add(dat, duration).Value.DateTime;
DateTime today = DateTime.Today;
dt = new DateTime(today.Year, today.Month, today.Day, dt.Hour, dt.Minute, dt.Second, dt.Millisecond);
if (tm.IsLocal)
return new TimeValue(dt);
else
return new TimeValue(new DateTimeOffset(dt, tm.Value.Offset));
}
public static DateValue Add(DateValue dat, DayTimeDurationValue duration)
{
try
{
decimal seconds = (decimal)duration.LowPartValue.Ticks / TimeSpan.TicksPerSecond;
decimal julian = dat.ToJulianInstant();
julian += seconds;
DateTimeValue dt = DateTimeValue.CreateFromJulianInstant(julian);
if (dat.IsLocal)
return new DateValue(dt.S, dt.Value.Date);
else
return new DateValue(dt.S, new DateTimeOffset(dt.Value.Date, dat.Value.Offset));
}
catch (ArgumentOutOfRangeException)
{
throw new XQueryException(Properties.Resources.FODT0001);
}
}
private static decimal Divide(DayTimeDurationValue a, DayTimeDurationValue b)
{
if (b.LowPartValue == TimeSpan.Zero)
throw new XQueryException(Properties.Resources.FOAR0001);
return (decimal)a.LowPartValue.Ticks / (decimal)b.LowPartValue.Ticks;
}
public Proxy(DayTimeDurationValue value)
{
_value = value;
}