getTime(TimeZone tz)
{
/*
** Ingres dates are overloaded with 'empty' date,
** date only, timestamp and interval values. The
** first three types are handled explicitly below.
** Intervals will either cause an exception while
** attempting to parse the value or as the default
** action for an unrecognized format.
*/
try
{
if (value.Length == 0 || // Empty date
value.Length == SqlDates.D_FMT.Length) // Date only
{
/*
** There is no time component, so create a time EPOCH value.
** If no timezone is provided, we can return the local epoch
** constant. Otherwise, the epoch value for the requested
** timezone must be generated.
*/
return((tz == null) ? SqlDates.getEpochTime()
: SqlDates.parseTime(SqlDates.T_EPOCH, tz));
}
else if (value.Length == SqlDates.TS_FMT.Length) // Timestamp
{
/*
** Remove the date component but retain correct time:
**
** 1. Convert to GMT timestamp using TZ for current connection.
** 2. Re-format as time only using local TZ to get local time.
** 3. Generate Time value using requested/local TZ.
*/
DateTime ts = SqlDates.parseTimestamp(value, use_gmt);
String str = SqlDates.formatTime(ts, false);
return((osql_dates && tz != null)
? SqlDates.parseTime(str, tz)
: SqlDates.parseTime(str, false));
}
else // Interval
{
/*
** Can't support intervals with Time objects.
*/
throw SqlEx.get(ERR_GC401B_INVALID_DATE);
}
}
catch (SqlEx ex)
{
/*
** Any parsing error is assumed to be caused by an interval.
*/
interval = true;
throw ex;
}
} // getTime
