org.apache.log4j.spi

Interface LoggerRepository

public interface LoggerRepository

A LoggerRepository is used to create and retrieve Loggers.

The relation between loggers in a repository depends on the repository but typically loggers are arranged in a named hierarchy.

In addition to the creational methods, a LoggerRepository can be queried for existing loggers, can act as a point of registry for events related to loggers.

Since:

1.2

Method Summary

Modifier and Type	Method and Description
void	addHierarchyEventListener(HierarchyEventListener listener) Add a HierarchyEventListener event to the repository.
void	emitNoAppenderWarning(Category cat)
Logger	exists(String name)
void	fireAddAppenderEvent(Category logger, Appender appender)
Enumeration	getCurrentCategories() Deprecated.
Enumeration	getCurrentLoggers()
Logger	getLogger(String name)
Logger	getLogger(String name, LoggerFactory factory)
Logger	getRootLogger()
Level	getThreshold() Get the repository-wide threshold.
boolean	isDisabled(int level) Returns whether this repository is disabled for a given level.
void	resetConfiguration()
void	setThreshold(Level level) Set the repository-wide threshold.
void	setThreshold(String val) Another form of setThreshold(Level) accepting a string parameter instead of a Level.
void	shutdown()

Method Detail

addHierarchyEventListener

void addHierarchyEventListener(HierarchyEventListener listener)

Add a HierarchyEventListener event to the repository.

Parameters:

listener - The listener

isDisabled

boolean isDisabled(int level)

Returns whether this repository is disabled for a given level. The answer depends on the repository threshold and the level parameter. See also setThreshold(org.apache.log4j.Level) method.

Parameters:

level - The level

Returns:

whether this repository is disabled.

setThreshold

void setThreshold(Level level)

Set the repository-wide threshold. All logging requests below the threshold are immediately dropped. By default, the threshold is set to Level.ALL which has the lowest possible rank.

Parameters:

level - The level

setThreshold

void setThreshold(String val)

Another form of setThreshold(Level) accepting a string parameter instead of a Level.

Parameters:

val - The threshold value

emitNoAppenderWarning

void emitNoAppenderWarning(Category cat)

getThreshold

Level getThreshold()

Get the repository-wide threshold. See setThreshold(Level) for an explanation.

Returns:

the level.

getLogger

Logger getLogger(String name)

getLogger

Logger getLogger(String name,
                 LoggerFactory factory)

getRootLogger

Logger getRootLogger()

exists

Logger exists(String name)

shutdown

void shutdown()

getCurrentLoggers

Enumeration getCurrentLoggers()

getCurrentCategories

Enumeration getCurrentCategories()

Deprecated. Please use getCurrentLoggers() instead.

Returns:

an enumeration of loggers.

fireAddAppenderEvent

void fireAddAppenderEvent(Category logger,
                          Appender appender)

resetConfiguration

void resetConfiguration()