TimeUtil (webgl4j 0.2.8 API)

java.lang.Object
- com.shc.webgl4j.client.TimeUtil

```
public final class TimeUtil
extends java.lang.Object
```
Provides access to a high performance timer. This class creates a polyfill function on first access that uses the following APIs in the priority of given order.

window.performance.now() → window.performance.webkitNow() → Date.now()

The first two are high performance timers, which provide timestamps with microsecond precision. The last one is a low performance timer and is used as a fallback when the first two are not available. At first we check if the window.performance.now() is supported or not. If not then a check is performed for window.performance .webkitNow() and finally if everything fails we use Date.now() as the last option.

Nested Class Summary

Nested Classes
Modifier and Type Class and Description

static class TimeUtil.Implementation
An enumeration used to describe the method this polyfill is using to report time stamps.

Nested Classes
Modifier and Type	Class and Description
`static class`	`TimeUtil.Implementation` An enumeration used to describe the method this polyfill is using to report time stamps.

Method Summary

All Methods Static Methods Concrete Methods
Modifier and Type	Method and Description
`static double`	`currentMicros()` Returns the current time stamp in the unit of micro seconds.
`static double`	`currentMillis()` Returns the current time stamp in the unit of milli seconds.
`static double`	`currentNanos()` Returns the current time stamp in the unit of nano seconds.
`static double`	`currentSeconds()` Returns the current time stamp in the unit of seconds.
`static TimeUtil.Implementation`	`getImplementation()` Returns the implementation that this polyfill uses.

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

- Method Detail
  - currentSeconds
```
public static double currentSeconds()
```
    Returns the current time stamp in the unit of seconds. This method does multiply the current milli seconds by 0.001 to convert them into seconds.
    
    Returns:
    
    The current time stamp in the unit of seconds.
  - currentMillis
```
public static double currentMillis()
```
    Returns the current time stamp in the unit of milli seconds. This method simply returns the value returned by the underlying high performance timer which by default returns milli seconds.
    
    Returns:
    
    The current time stamp in the unit of milli seconds.
  - currentMicros
```
public static double currentMicros()
```
    Returns the current time stamp in the unit of micro seconds. This method does multiply the current milli seconds by 1000 to convert them into micro seconds.
    
    Returns:
    
    The current time stamp in the unit of micro seconds.
  - currentNanos
```
public static double currentNanos()
```
    Returns the current time stamp in the unit of nano seconds. This method does multiply the current milli seconds by 1000000 to convert them into nano seconds. This however will not be so accurate as the browsers as of now only provide timers to the microsecond resolution.
    
    Returns:
    
    The current time stamp in the unit of nano seconds.
  - getImplementation
```
public static TimeUtil.Implementation getImplementation()
```
    Returns the implementation that this polyfill uses. It might be window.performance.now() in the best case or window.performance.webkitNow() in the average case. In the worst case if both those timers are not available, that is we are using Date.now() it returns TimeUtil.Implementation.LOW_PERFORMANCE.
    
    Returns:
    
    Returns an enum describing which implementation that this timer polyfill is using.

Class TimeUtil

Nested Class Summary

Method Summary

Methods inherited from class java.lang.Object

Method Detail

currentSeconds

currentMillis

currentMicros

currentNanos

getImplementation