oracle.javatools.util

Enum Chronometer.Precision

java.lang.Object

java.lang.Enum<Chronometer.Precision>

oracle.javatools.util.Chronometer.Precision

All Implemented Interfaces:

java.io.Serializable, java.lang.Comparable<Chronometer.Precision>

Enclosing class:

Chronometer

public static enum Chronometer.Precision
extends java.lang.Enum<Chronometer.Precision>

Defines the method to be utilized by a Chronometer instance in order to obtain current time.

Enum Constant Summary

Enum Constants

Enum Constant and Description
Milliseconds Use System.currentTimeMillis() to obtain current time.
Nanoseconds Use System.nanoTime() to obtain current time

Method Summary

Methods

Modifier and Type	Method and Description
static Chronometer.Precision	valueOf(java.lang.String name) Returns the enum constant of this type with the specified name.
static Chronometer.Precision[]	values() Returns an array containing the constants of this enum type, in the order they are declared.

Methods inherited from class java.lang.Enum

clone, compareTo, equals, finalize, getDeclaringClass, hashCode, name, ordinal, toString, valueOf

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

Enum Constant Detail

Milliseconds

public static final Chronometer.Precision Milliseconds

Use System.currentTimeMillis() to obtain current time.

This will usually be the cheapest method.

Nanoseconds

public static final Chronometer.Precision Nanoseconds

Use System.nanoTime() to obtain current time

This method will be more precise than Milliseconds, but it is also likely to be more expensive and more sensitive to low level OS issues, especially regarding clock syncing across multiple cores.

Method Detail

values

public static Chronometer.Precision[] values()

Returns an array containing the constants of this enum type, in the order they are declared. This method may be used to iterate over the constants as follows:

for (Chronometer.Precision c : Chronometer.Precision.values())
    System.out.println(c);

Returns:

an array containing the constants of this enum type, in the order they are declared

valueOf

public static Chronometer.Precision valueOf(java.lang.String name)

Returns the enum constant of this type with the specified name. The string must match exactly an identifier used to declare an enum constant in this type. (Extraneous whitespace characters are not permitted.)

Parameters:

name - the name of the enum constant to be returned.

Returns:

the enum constant with the specified name

Throws:

java.lang.IllegalArgumentException - if this enum type has no constant with the specified name

java.lang.NullPointerException - if the argument is null