org.apache.avalon.framework.logger

Class NullLogger

public final class NullLogger extends Object implements Logger

The Null Logger class. This is useful for implementations where you need to provide a logger to a utility class, but do not want any output from it. It also helps when you have a utility that does not have a logger to supply.

Version: CVS $Revision: 1.11 $ $Date: 2003/02/11 15:58:41 $

Author: Avalon Development Team

Constructor Summary
	NullLogger() Creates a new `NullLogger`.

Method Summary
void	debug(String message) No-op.
void	debug(String message, Throwable throwable) No-op.
void	error(String message) No-op.
void	error(String message, Throwable throwable) No-op.
void	fatalError(String message) No-op.
void	fatalError(String message, Throwable throwable) No-op.
Logger	getChildLogger(String name) Returns this `NullLogger`.
void	info(String message) No-op.
void	info(String message, Throwable throwable) No-op.
boolean	isDebugEnabled() No-op.
boolean	isErrorEnabled() No-op.
boolean	isFatalErrorEnabled() No-op.
boolean	isInfoEnabled() No-op.
boolean	isWarnEnabled() No-op.
void	warn(String message) No-op.
void	warn(String message, Throwable throwable) No-op.

Constructor Detail

NullLogger

public NullLogger()

Creates a new NullLogger.

Method Detail

debug

public void debug(String message)

No-op.

Parameters: message ignored

debug

public void debug(String message, Throwable throwable)

No-op.

Parameters: message ignored throwable ignored

error

public void error(String message)

No-op.

Parameters: message ignored

error

public void error(String message, Throwable throwable)

No-op.

Parameters: message ignored throwable ignored

fatalError

public void fatalError(String message)

No-op.

Parameters: message ignored

fatalError

public void fatalError(String message, Throwable throwable)

No-op.

Parameters: message ignored throwable ignored

getChildLogger

public Logger getChildLogger(String name)

Returns this NullLogger.

Parameters: name ignored

Returns: this NullLogger

info

public void info(String message)

No-op.

Parameters: message ignored

info

public void info(String message, Throwable throwable)

No-op.

Parameters: message ignored throwable ignored

isDebugEnabled

public boolean isDebugEnabled()

No-op.

Returns: false

isErrorEnabled

public boolean isErrorEnabled()

No-op.

Returns: false

isFatalErrorEnabled

public boolean isFatalErrorEnabled()

No-op.

Returns: false

isInfoEnabled

public boolean isInfoEnabled()

No-op.

Returns: false

isWarnEnabled

public boolean isWarnEnabled()

No-op.

Returns: false

warn

public void warn(String message)

No-op.

Parameters: message ignored

warn

public void warn(String message, Throwable throwable)

No-op.

Parameters: message ignored throwable ignored