ucar.unidata.util
Class Timestamp

java.lang.Object
  ucar.unidata.util.Timestamp

All Implemented Interfaces:

Serializable, Comparable

public class Timestamp
extends Object
implements Comparable, Serializable

A immutable timestamp and related utilities. Hopefully lighter weight than java.util.Date (which is mutable), and we don't have to trip over javasoft/Taligent deprecations.

We are using the java "long millisecs since the epoch" as internal representation. This doesn't roll over until August of 292,278,994.

Version:

$Revision: 1.13 $ $Date: 2006/05/05 19:19:38 $

Author:

$Author: jeffmc $

See Also:

Serialized Form

Field Summary

protected long	millis_ _more_
static Timestamp	NONE _more_

Constructor Summary

Timestamp()
Construct a Timestamp and initialized to the current time.

Timestamp(Date date)
Construct a Timestamp and initialized by a Date object.

Timestamp(int secsPrior)
Construct a Timestamp initialized by current time minus given seconds.

Timestamp(long millis)
Construct a Timestamp and initialized to represent the specified number of milliseconds since the standard base time known as "the epoch", namely January 1, 1970, 00:00:00 GMT.

Method Summary

int	compareTo(Object oo) _more_
int	compareTo(Timestamp ts) _more_
boolean	equals(Object oo) _more_
StringBuffer	format(StringBuffer buf) _more_
long	getMillis()
int	hashCode() _more_
static void	main(String[] args) _more_
String	toString() _more_

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Field Detail

NONE

public static final Timestamp NONE

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millis_

protected final long millis_

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Constructor Detail

Timestamp

public Timestamp(long millis)

Construct a Timestamp and initialized to represent the specified number of milliseconds since the standard base time known as "the epoch", namely January 1, 1970, 00:00:00 GMT.

Parameters:

millis - long milliseconds since January 1, 1970, 00:00:00 GMT

See Also:

System.currentTimeMillis()

Timestamp

public Timestamp()

Construct a Timestamp and initialized to the current time.

See Also:

System.currentTimeMillis()

Timestamp

public Timestamp(Date date)

Construct a Timestamp and initialized by a Date object.

Parameters:

date -

See Also:

Date

Timestamp

public Timestamp(int secsPrior)

Construct a Timestamp initialized by current time minus given seconds.

Parameters:

secsPrior - number oif seconds prior to current time

Method Detail

getMillis

public long getMillis()

Returns:

long time value represented by this, in number of milliseconds since January 1, 1970, 00:00:00 GMT

format

public StringBuffer format(StringBuffer buf)

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Parameters:

buf -

Returns:

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hashCode

public int hashCode()

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Overrides:

hashCode in class Object

Returns:

_more_

equals

public boolean equals(Object oo)

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Overrides:

equals in class Object

Parameters:

oo -

Returns:

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toString

public String toString()

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Overrides:

toString in class Object

Returns:

_more_

compareTo

public int compareTo(Timestamp ts)

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Parameters:

ts -

Returns:

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compareTo

public int compareTo(Object oo)

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Specified by:

compareTo in interface Comparable

Parameters:

oo -

Returns:

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main

public static void main(String[] args)

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Parameters:

args -