Package com.oracle.coherence.common.base

Class TimeHelper

java.lang.Object

com.oracle.coherence.common.base.TimeHelper

public abstract class TimeHelper
extends Object

Class for providing time functionality.

Since:

20.06

Author:

cp 2000.08.02

Constructor Summary

Constructors

Constructor	Description
TimeHelper()

Method Summary

Modifier and Type	Method	Description
static long	computeSafeWaitTime(long ldtTimeout)	compute the number of milliseconds until the specified time.
static long	getLastSafeTimeMillis()	Returns the last "safe" time as computed by a previous call to the getSafeTimeMillis() method.
static long	getSafeTimeMillis()	Returns a "safe" current time in milliseconds.
static TimeZone	getTimeZone(String sId)	Gets the TimeZone for the given ID.
static long	getUpTimeMillis()	Return the number of milliseconds which have elapsed since the JVM was started.

Methods inherited from class java.lang.Object

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

Constructor Detail

TimeHelper

public TimeHelper()

Method Detail

getUpTimeMillis

public static long getUpTimeMillis()

Return the number of milliseconds which have elapsed since the JVM was started.

Returns:

the number of milliseconds which have elapsed since the JVM was started

getSafeTimeMillis

public static long getSafeTimeMillis()

Returns a "safe" current time in milliseconds.

Returns:

the difference, measured in milliseconds, between the corrected current time and midnight, January 1, 1970 UTC.

See Also:

SafeClock

getLastSafeTimeMillis

public static long getLastSafeTimeMillis()

Returns the last "safe" time as computed by a previous call to the getSafeTimeMillis() method.

Returns:

the last "safe" time in milliseconds

See Also:

SafeClock

computeSafeWaitTime

public static long computeSafeWaitTime(long ldtTimeout)

compute the number of milliseconds until the specified time.

Note: this method will only return zero if ldtTimeout == Long.MAX_VALUE.

Parameters:

ldtTimeout - the timeout as computed by getSafeTimeMillis()

Returns:

the number of milliseconds to wait, or negative if the timeout has expired

getTimeZone

public static TimeZone getTimeZone(String sId)

Gets the TimeZone for the given ID.

This method will cache returned TimeZones to avoid the contention caused by the TimeZone.getTimeZone(String) implementation.

Parameters:

sId - the ID for a TimeZone

Returns:

the specified TimeZone, or the GMT zone if the given ID cannot be understood.

Since:

Coherence 12.1.3

See Also:

TimeZone.getTimeZone(String)