Package edu.cnu.mdi.log

Enum Class Log.Level

java.lang.Object

java.lang.Enum<Log.Level>

edu.cnu.mdi.log.Log.Level

All Implemented Interfaces:

Serializable, Comparable<Log.Level>, Constable

Enclosing class:

Log

public static enum Log.Level
extends Enum<Log.Level>

Severity levels for log messages.

Each constant carries its own dispatch logic via an abstract dispatch(ILogListener, String) method, eliminating the need for a switch statement in the notification loop.

Nested Class Summary

Nested classes/interfaces inherited from class java.lang.Enum

Enum.EnumDesc<E extends Enum<E>>

Enum Constant Summary

Enum Constants

Enum Constant	Description
CONFIG	Application configuration and setup events.
ERROR	Significant failures that may have prevented an operation.
EXCEPTION	Unhandled exceptions.
INFO	Normal application events.
WARNING	Recoverable problems or unexpected conditions.

Method Summary

Modifier and Type	Method	Description
abstract void	dispatch(ILogListener listener, String message)	Dispatch message to the appropriate method on listener for this level.
static Log.Level	valueOf(String name)	Returns the enum constant of this class with the specified name.
static Log.Level[]	values()	Returns an array containing the constants of this enum class, in the order they are declared.

Methods inherited from class java.lang.Enum

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

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

Enum Constant Details

INFO

public static final Log.Level INFO

Normal application events.

CONFIG

public static final Log.Level CONFIG

Application configuration and setup events.

WARNING

public static final Log.Level WARNING

Recoverable problems or unexpected conditions.

ERROR

public static final Log.Level ERROR

Significant failures that may have prevented an operation.

EXCEPTION

public static final Log.Level EXCEPTION

Unhandled exceptions.

The message contains the full stack trace produced by Log.exception(Throwable).

Method Details

values

public static Log.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 Log.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

dispatch

public abstract void dispatch(ILogListener listener,
 String message)

Dispatch message to the appropriate method on listener for this level.

Parameters:

listener - the target listener; never null

message - the log message; never null