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openjdk / 17 / java.base / java / lang / system.logger.level.html

Enum Class System.Logger.Level

java.lang.Object
java.lang.Enum<System.Logger.Level>
java.lang.System.Logger.Level
All Implemented Interfaces:
Serializable, Comparable<System.Logger.Level>, Constable
Enclosing interface:
System.Logger 
public static enum System.Logger.Level extends Enum<System.Logger.Level>
System loggers levels. A level has a name and severity. Level values are ALL, TRACE, DEBUG, INFO, WARNING, ERROR, OFF, by order of increasing severity.
ALL and OFF are simple markers with severities mapped respectively to Integer.MIN_VALUE and Integer.MAX_VALUE.

Severity values and Mapping to java.util.logging.Level.

System logger levels are mapped to java.util.logging levels of corresponding severity.
The mapping is as follows:

System.Logger Severity Level Mapping
System.Logger Levels java.util.logging Levels
ALL ALL
TRACE FINER
DEBUG FINE
INFO INFO
WARNING WARNING
ERROR SEVERE
OFF OFF
Since:
9
See Also:

Nested Class Summary

Nested classes/interfaces declared in class java.lang.Enum

Enum.EnumDesc<E extends Enum<E>>

Enum Constant Summary

Enum Constant Description
ALL
A marker to indicate that all levels are enabled.
DEBUG
DEBUG level: usually used to log debug information traces.
ERROR
ERROR level: usually used to log error messages.
INFO
INFO level: usually used to log information messages.
OFF
A marker to indicate that all levels are disabled.
TRACE
TRACE level: usually used to log diagnostic information.
WARNING
WARNING level: usually used to log warning messages.

Method Summary

Modifier and Type Method Description
final String getName()
Returns the name of this level.
final int getSeverity()
Returns the severity of this level.
static System.Logger.Level valueOf(String name)
Returns the enum constant of this class with the specified name.
static System.Logger.Level[] values()
Returns an array containing the constants of this enum class, in the order they are declared.

Methods declared in class java.lang.Enum

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

Methods declared in class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

Enum Constant Details

ALL

public static final System.Logger.Level ALL
A marker to indicate that all levels are enabled. This level severity is Integer.MIN_VALUE.

TRACE

public static final System.Logger.Level TRACE
TRACE level: usually used to log diagnostic information. This level severity is 400.

DEBUG

public static final System.Logger.Level DEBUG
DEBUG level: usually used to log debug information traces. This level severity is 500.

INFO

public static final System.Logger.Level INFO
INFO level: usually used to log information messages. This level severity is 800.

WARNING

public static final System.Logger.Level WARNING
WARNING level: usually used to log warning messages. This level severity is 900.

ERROR

public static final System.Logger.Level ERROR
ERROR level: usually used to log error messages. This level severity is 1000.

OFF

public static final System.Logger.Level OFF
A marker to indicate that all levels are disabled. This level severity is Integer.MAX_VALUE.

Method Details

values

public static System.Logger.Level[] values()
Returns an array containing the constants of this enum class, in the order they are declared.
Returns:
an array containing the constants of this enum class, in the order they are declared

valueOf

public static System.Logger.Level valueOf(String name)
Returns the enum constant of this class with the specified name. The string must match exactly an identifier used to declare an enum constant in this class. (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:
IllegalArgumentException - if this enum class has no constant with the specified name
NullPointerException - if the argument is null

getName

public final String getName()
Returns the name of this level.
Returns:
this level Enum.name().

getSeverity

public final int getSeverity()
Returns the severity of this level. A higher severity means a more severe condition.
Returns:
this level severity.

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Documentation extracted from Debian's OpenJDK Development Kit package.
Licensed under the GNU General Public License, version 2, with the Classpath Exception.
Various third party code in OpenJDK is licensed under different licenses (see Debian package).
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https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/System.Logger.Level.html