org.xmpp.component
Interface Log

public interface Log

A simple logging service for components. Four log levels are provided:

• Error -- an error occured in the component.
• Warn -- a condition occured that an administrator should be warned about.
• Info -- used to send information messages, such as a version or license notice.
• Debug -- used to send debugging information. Most Log implementations will disable debug output by default.

Log implementations will attempt use the native logging service of the component host server. However, this may not be possible in some cases -- for example, when using an external component that is not currently connected to the server.

Author:

Matt Tucker

Method Summary

void	debug(String message) Logs a debug message.
void	debug(String message, Throwable throwable) Logs a debug message.
void	debug(Throwable throwable) Logs a debug message.
void	error(String message) Logs an error.
void	error(String message, Throwable throwable) Logs an error.
void	error(Throwable throwable) Logs an error.
void	info(String message) Logs an info message.
void	info(String message, Throwable throwable) Logs an info message.
void	info(Throwable throwable) Logs an info message.
void	warn(String message) Logs a warning.
void	warn(String message, Throwable throwable) Logs a warning.
void	warn(Throwable throwable) Logs a warning.

Method Detail

error

void error(String message)

Logs an error.

Parameters:

message - the error message.

error

void error(String message,
           Throwable throwable)

Logs an error.

Parameters:

message - the error message.

throwable - the Throwable that caused the error.

error

void error(Throwable throwable)

Logs an error.

Parameters:

throwable - the Throwable that caused the error.

warn

void warn(String message)

Logs a warning.

Parameters:

message - the warning message.

warn

void warn(String message,
          Throwable throwable)

Logs a warning.

Parameters:

message - the warning message.

throwable - the Throwable that caused the error.

warn

void warn(Throwable throwable)

Logs a warning.

Parameters:

throwable - the Throwable that caused the error.

info

void info(String message)

Logs an info message.

Parameters:

message - the info message.

info

void info(String message,
          Throwable throwable)

Logs an info message.

Parameters:

message - the info message.

throwable - the Throwable that caused the info message.

info

void info(Throwable throwable)

Logs an info message.

Parameters:

throwable - the Throwable that caused the info message.

debug

void debug(String message)

Logs a debug message.

Parameters:

message - the debug message.

debug

void debug(String message,
           Throwable throwable)

Logs a debug message.

Parameters:

message - the debug message.

throwable - the Throwable that caused the debug message.

debug

void debug(Throwable throwable)

Logs a debug message.

Parameters:

throwable - the Throwable the caused the debug message.