org.apache.log4j
Class Logger

java.lang.Object
  |
  +--org.apache.log4j.Category
        |
        +--org.apache.log4j.Logger

All Implemented Interfaces:

AppenderAttachable

Direct Known Subclasses:

RootCategory

public class Logger

extends Category

This is the central class in the log4j package. Most logging operations, except configuration, are done through this class.

Since:

log4j 1.2

Author:

Ceki Gülcü

Fields inherited from class org.apache.log4j.Category

additive, level, name, parent, repository, resourceBundle

Constructor Summary

protected

Logger(String name)

Method Summary

static Logger	getLogger(Class clazz) Same as calling getLogger(clazz.getName()).
static Logger	getLogger(String name) Retrieve a logger by name.
static Logger	getLogger(String name, LoggerFactory factory) Like getLogger(String) except that the type of logger instantiated depends on the type returned by the LoggerFactory.makeNewLoggerInstance(java.lang.String) method of the factory parameter.
static Logger	getRootLogger() Retrieve the root logger.

Methods inherited from class org.apache.log4j.Category

addAppender, assertLog, callAppenders, debug, debug, error, error, exists, fatal, fatal, forcedLog, getAdditivity, getAllAppenders, getAppender, getChainedPriority, getCurrentCategories, getDefaultHierarchy, getEffectiveLevel, getHierarchy, getInstance, getInstance, getLevel, getLoggerRepository, getName, getParent, getPriority, getResourceBundle, getResourceBundleString, getRoot, info, info, isAttached, isDebugEnabled, isEnabledFor, isInfoEnabled, l7dlog, l7dlog, log, log, log, removeAllAppenders, removeAppender, removeAppender, setAdditivity, setLevel, setPriority, setResourceBundle, shutdown, warn, warn

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

Logger

protected Logger(String name)

Method Detail

getLogger

public static Logger getLogger(String name)

Retrieve a logger by name.

getLogger

public static Logger getLogger(Class clazz)

Same as calling getLogger(clazz.getName()).

getRootLogger

public static Logger getRootLogger()

Retrieve the root logger.

getLogger

public static Logger getLogger(String name,
                               LoggerFactory factory)

Like getLogger(String) except that the type of logger instantiated depends on the type returned by the LoggerFactory.makeNewLoggerInstance(java.lang.String) method of the factory parameter.

This method is intended to be used by sub-classes.

Parameters:

name - The name of the logger to retrieve.

factory - A LoggerFactory implementation that will actually create a new Instance.

Since:

0.8.5