ucar.unidata.util

Class Timestamp

java.lang.Object

ucar.unidata.util.Timestamp

All Implemented Interfaces:

java.io.Serializable, java.lang.Comparable

public class Timestamp
extends java.lang.Object
implements java.lang.Comparable, java.io.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

Fields

Modifier and Type	Field and Description
protected long	millis_ _more_
static Timestamp	NONE _more_

Constructor Summary

Constructors

Constructor and Description
Timestamp() Construct a Timestamp and initialized to the current time.
Timestamp(java.util.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

Modifier and Type	Method and Description
int	compareTo(java.lang.Object oo) _more_
int	compareTo(Timestamp ts) _more_
boolean	equals(java.lang.Object oo) _more_
java.lang.StringBuffer	format(java.lang.StringBuffer buf) _more_
long	getMillis()
int	hashCode() _more_
static void	main(java.lang.String[] args) _more_
java.lang.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

_more_

millis_

protected final long millis_

_more_

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(java.util.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 java.lang.StringBuffer format(java.lang.StringBuffer buf)

_more_

Parameters:

buf -

Returns:

_more_

hashCode

public int hashCode()

_more_

Overrides:

hashCode in class java.lang.Object

Returns:

_more_

equals

public boolean equals(java.lang.Object oo)

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Overrides:

equals in class java.lang.Object

Parameters:

oo -

Returns:

_more_

toString

public java.lang.String toString()

_more_

Overrides:

toString in class java.lang.Object

Returns:

_more_

compareTo

public int compareTo(Timestamp ts)

_more_

Parameters:

ts -

Returns:

_more_

compareTo

public int compareTo(java.lang.Object oo)

_more_

Specified by:

compareTo in interface java.lang.Comparable

Parameters:

oo -

Returns:

_more_

main

public static void main(java.lang.String[] args)

_more_

Parameters:

args -