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GeezerVison is showing docs.oracle.com — System.Logger.Level (Java SE 25 & JDK 25)

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:
  • System.LoggerFinder
  • System.Logger

  • Nested Class Summary

    Nested classes/interfaces declared in class Enum

    Enum.EnumDesc<E>

  • Enum Constant Summary

    Enum Constants
    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 Enum

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

    Methods declared in class 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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