org.apache.log4j.helpers

Class LogLog

java.lang.Object

org.apache.log4j.helpers.LogLog

public class LogLog
extends java.lang.Object

This class used to output log statements from within the log4j package.

Log4j components cannot make log4j logging calls. However, it is sometimes useful for the user to learn about what log4j is doing. You can enable log4j internal logging by defining the log4j.configDebug variable.

All log4j internal debug calls go to System.out where as internal error messages are sent to System.err. All internal messages are prepended with the string "log4j: ".

Since:

0.8.2

Field Summary

Fields

Modifier and Type	Field and Description
static java.lang.String	CONFIG_DEBUG_KEY Deprecated. Use DEBUG_KEY instead.
static java.lang.String	DEBUG_KEY Defining this value makes log4j print log4j-internal debug statements to System.out.

Constructor Summary

Constructors

Constructor and Description
LogLog()

Method Summary

Modifier and Type	Method and Description
static void	debug(java.lang.String msg) This method is used to output log4j internal debug statements.
static void	debug(java.lang.String msg, java.lang.Throwable t) This method is used to output log4j internal debug statements.
static void	error(java.lang.String msg) This method is used to output log4j internal error statements.
static void	error(java.lang.String msg, java.lang.Throwable t) This method is used to output log4j internal error statements.
static void	setInternalDebugging(boolean enabled) Allows to enable/disable log4j internal logging.
static void	setQuietMode(boolean quietMode) In quite mode no LogLog generates strictly no output, not even for errors.
static void	warn(java.lang.String msg) This method is used to output log4j internal warning statements.
static void	warn(java.lang.String msg, java.lang.Throwable t) This method is used to output log4j internal warnings.

Methods inherited from class java.lang.Object

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

Field Detail

DEBUG_KEY

public static final java.lang.String DEBUG_KEY

Defining this value makes log4j print log4j-internal debug statements to System.out.

The value of this string is log4j.debug.

Note that the search for all option names is case sensitive.

See Also:

Constant Field Values

CONFIG_DEBUG_KEY

public static final java.lang.String CONFIG_DEBUG_KEY

Deprecated. Use DEBUG_KEY instead.

Defining this value makes log4j components print log4j-internal debug statements to System.out.

The value of this string is log4j.configDebug.

Note that the search for all option names is case sensitive.

See Also:

Constant Field Values

Constructor Detail

LogLog

public LogLog()

Method Detail

setInternalDebugging

public static void setInternalDebugging(boolean enabled)

Allows to enable/disable log4j internal logging.

debug

public static void debug(java.lang.String msg)

This method is used to output log4j internal debug statements. Output goes to System.out.

debug

public static void debug(java.lang.String msg,
                         java.lang.Throwable t)

This method is used to output log4j internal debug statements. Output goes to System.out.

error

public static void error(java.lang.String msg)

This method is used to output log4j internal error statements. There is no way to disable error statements. Output goes to System.err.

error

public static void error(java.lang.String msg,
                         java.lang.Throwable t)

This method is used to output log4j internal error statements. There is no way to disable error statements. Output goes to System.err.

setQuietMode

public static void setQuietMode(boolean quietMode)

In quite mode no LogLog generates strictly no output, not even for errors.

Parameters:

quietMode - A true for not

warn

public static void warn(java.lang.String msg)

This method is used to output log4j internal warning statements. There is no way to disable warning statements. Output goes to System.err.

warn

public static void warn(java.lang.String msg,
                        java.lang.Throwable t)

This method is used to output log4j internal warnings. There is no way to disable warning statements. Output goes to System.err.