org.teiid.transport.pg

Class TimestampUtils

java.lang.Object

org.teiid.transport.pg.TimestampUtils

public class TimestampUtils
extends Object

Slimmed down from org.postgresql.jdbc2.TimestampUtils

Field Summary

Fields

Modifier and Type	Field and Description
static long	DATE_NEGATIVE_INFINITY
static long	DATE_NEGATIVE_SMALLER_INFINITY
static long	DATE_POSITIVE_INFINITY
static long	DATE_POSITIVE_SMALLER_INFINITY

Constructor Summary

Constructors

Constructor and Description
TimestampUtils()

Method Summary

Modifier and Type	Method and Description
static Time	convertToTime(long millis, TimeZone tz) Extracts the time part from a timestamp.
static Date	toDate(TimeZone tz, int days) Returns the SQL Date object given the timezone and number of days
static long	toPgSecs(long secs) Converts the given java seconds to postgresql seconds.
static Timestamp	toTimestamp(long time, TimeZone tz)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

DATE_POSITIVE_INFINITY

public static final long DATE_POSITIVE_INFINITY

See Also:

Constant Field Values

DATE_NEGATIVE_INFINITY

public static final long DATE_NEGATIVE_INFINITY

See Also:

Constant Field Values

DATE_POSITIVE_SMALLER_INFINITY

public static final long DATE_POSITIVE_SMALLER_INFINITY

See Also:

Constant Field Values

DATE_NEGATIVE_SMALLER_INFINITY

public static final long DATE_NEGATIVE_SMALLER_INFINITY

See Also:

Constant Field Values

Constructor Detail

TimestampUtils

public TimestampUtils()

Method Detail

toDate

public static Date toDate(TimeZone tz,
                          int days)

Returns the SQL Date object given the timezone and number of days

Parameters:

tz - The timezone used.

Returns:

The parsed date object.

toPgSecs

public static long toPgSecs(long secs)

Converts the given java seconds to postgresql seconds. See toJavaSecs(long) for the reverse operation. The conversion is valid for any year 100 BC onwards.

Parameters:

secs - Postgresql seconds.

Returns:

Java seconds.

toTimestamp

public static Timestamp toTimestamp(long time,
                                    TimeZone tz)

Parameters:

time - in microseconds

tz -

Returns:

convertToTime

public static Time convertToTime(long millis,
                                 TimeZone tz)

Extracts the time part from a timestamp. This method ensures the date part of output timestamp looks like 1970-01-01 in given timezone.

Parameters:

millis - The timestamp from which to extract the time.

tz - timezone to use.

Returns:

The extracted time.