getTime(TimeZone tz)
{
/*
** Strip date component by re-formatting as time value.
*/
return(SqlDates.parseTime(SqlDates.formatTime(get(tz), false), false));
} // getTime
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
set(DateTime value, TimeZone tz)
{
// DateTime does not have a null
//if (value == null)
//{
// setNull();
// return;
//}
setNotNull();
nanos = 0;
if (value.Kind == DateTimeKind.Utc) // if UTC, normalize to LOCAL
{
value = value.ToLocalTime();
}
switch (dbms_type)
{
case DBMS_TYPE_TIME:
/*
** DAS parses local time using GMT.
*/
this.value = SqlDates.formatTime(value, true);
break;
case DBMS_TYPE_TMWO:
/*
** Format as local time using requested or default timezone.
*/
this.value = (tz != null) ? SqlDates.formatTime(value, tz)
: SqlDates.formatTime(value, false);
break;
case DBMS_TYPE_TMTZ:
/*
** Format as local time using requested or default timezone.
*/
this.value = (tz != null) ? SqlDates.formatTime(value, tz)
: SqlDates.formatTime(value, false);
/*
** Java applies TZ and DST of 'epoch' date: 1970-01-01.
** Ingres applies TZ and DST of todays date, so use
** current date to determine explicit TZ offset.
*/
long millis = DateTime.Now.Ticks / TimeSpan.TicksPerMillisecond;
timezone = (tz != null) ? SqlDates.formatTZ(tz, millis)
: SqlDates.formatTZ(millis);
break;
}
return;
} // set
setTime(DateTime value, TimeZone tz)
{
// DateTime is never null
//if ( value == null )
//setNull();
//else
{
/*
** The time is stored in GMT. Timezones are not applied to
** Ingres times since they are also stored in GMT. OpenSQL
** times are assumed to be in the client TZ, so timezones
** can be applied to store values for specific timezones.
*/
if (osql_dates && tz != null)
{
/*
** First retrieve the time in the desired TZ.
*/
String str = SqlDates.formatTime(value, tz);
/*
** The local TZ will be applied, either by the driver or
** the gateway, during subsequent processing. We use the
** local TZ to save the desired value so as to cancel the
** future application of the local TZ.
*/
value = SqlDates.parseTime(str, false);
}
/*
** Produce the correct time value for the current connection.
**
** Ingres only partially supports time only values and adds
** the current date to such values. JDBC specifies that the
** date portion for time values should be set to the date
** epoch 1970-01-01. When the current date has a different
** daylight savings offset than the epoch, a one hour offset
** can occur because of the different GMT offsets applied by
** Java and Ingres. Due to these problems, format the time
** as a timestamp to ensure consistent processing. Note that
** formatTimestamp() takes a java.util.Date parameter of which
** java.sql.Time is a sub-class.
*/
setNotNull();
this.value = SqlDates.formatTimestamp(value, use_gmt);
interval = false;
}
return;
} // setTime
getString()
{
/*
** Format using local default TZ for local time.
** Nano-seconds must be manually formatted.
*/
String str = SqlDates.formatTime(get(null), false);
if (nanos > 0)
{
str += SqlDates.formatFrac(nanos);
}
return(str);
} // getString
setTime(DateTime value, TimeZone tz)
{
// DateTime is never null
//if (value == null)
// setNull();
//else
if (tz != null)
{
setString(SqlDates.formatTime(value, tz));
}
else
{
setString(SqlDates.formatTime(value, false));
}
return;
} // setTime
