Class CachedClock
- java.lang.Object
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- org.apache.logging.log4j.core.util.CachedClock
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- All Implemented Interfaces:
Clock
public final class CachedClock extends Object implements Clock
Implementation of theClock
interface that tracks the time in a private long field that is updated by a background thread once every millisecond. Timers on most platforms do not have millisecond granularity, so the returned value may "jump" every 10 or 16 milliseconds. To reduce this problem, this class also updates the internal time value every 1024 calls tocurrentTimeMillis()
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Method Summary
All Methods Static Methods Instance Methods Concrete Methods Modifier and Type Method Description long
currentTimeMillis()
Returns the value of a private long field that is updated by a background thread once every millisecond.static CachedClock
instance()
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Method Detail
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instance
public static CachedClock instance()
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currentTimeMillis
public long currentTimeMillis()
Returns the value of a private long field that is updated by a background thread once every millisecond. Timers on most platforms do not have millisecond granularity, the returned value may "jump" every 10 or 16 milliseconds. To reduce this problem, this method also updates the internal time value every 1024 calls.- Specified by:
currentTimeMillis
in interfaceClock
- Returns:
- the cached time
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