ClockFactory

java.lang.Object
- org.apache.logging.log4j.core.util.ClockFactory

public final class ClockFactory
extends java.lang.Object

Factory for Clock objects.

Field Summary

Fields
Modifier and Type	Field	Description
`private static StatusLogger`	`LOGGER`
`static java.lang.String`	`PROPERTY_NAME`	Name of the system property that can be used to specify a `Clock` implementation class.

Constructor Summary

Constructors
Modifier Constructor Description

private ClockFactory()

Method Summary

All Methods Static Methods Concrete Methods
Modifier and Type	Method	Description
`private static java.util.Map<java.lang.String,Supplier<Clock>>`	`aliases()`
`private static Clock`	`createClock()`
`static Clock`	`getClock()`	Returns a `Clock` instance depending on the value of system property `PROPERTY_NAME`.
`private static Clock`	`logSupportedPrecision(Clock clock)`

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Field Detail
  - PROPERTY_NAME
```
public static final java.lang.String PROPERTY_NAME
```
    Name of the system property that can be used to specify a Clock implementation class. The value of this property is "log4j.Clock".
    
    See Also:
    
    Constant Field Values
  - LOGGER
```
private static final StatusLogger LOGGER
```
- Constructor Detail
  - ClockFactory
```
private ClockFactory()
```
- Method Detail
  - getClock
```
public static Clock getClock()
```
    Returns a Clock instance depending on the value of system property PROPERTY_NAME.
    If system property log4j.Clock=CachedClock is specified, this method returns an instance of CachedClock. If system property log4j.Clock=CoarseCachedClock is specified, this method returns an instance of CoarseCachedClock.
    
    If another value is specified, this value is taken as the fully qualified class name of a class that implements the Clock interface. An object of this class is instantiated and returned.
    
    If no value is specified, or if the specified value could not correctly be instantiated or did not implement the Clock interface, then an instance of SystemClock is returned.
    
    Returns:
    
    a Clock instance
  - aliases
```
private static java.util.Map<java.lang.String,Supplier<Clock>> aliases()
```
  - createClock
```
private static Clock createClock()
```
  - logSupportedPrecision
```
private static Clock logSupportedPrecision(Clock clock)
```