net.spy.memcached.compat.log

Interface Logger

All Known Implementing Classes:

AbstractLogger, DefaultLogger, Log4JLogger, SLF4JLogger, SunLogger

public interface Logger

Abstract mechanism for dealing with logs from various objects. Implementations are expected to have a constructor that takes a single String representing the name of the logging item, or an empty constructor.

See Also:

LoggerFactory

Method Summary

Methods

Modifier and Type	Method and Description
void	debug(java.lang.Object message) Log a message at debug level.
void	debug(java.lang.Object message, java.lang.Throwable exception) Log a message at debug level.
void	debug(java.lang.String message, java.lang.Object... args) Log a formatted message at debug level.
void	error(java.lang.Object message) Log a message at error level.
void	error(java.lang.Object message, java.lang.Throwable exception) Log a message at error level.
void	error(java.lang.String message, java.lang.Object... args) Log a formatted message at debug level.
void	fatal(java.lang.Object message) Log a message at fatal level.
void	fatal(java.lang.Object message, java.lang.Throwable exception) Log a message at fatal level.
void	fatal(java.lang.String message, java.lang.Object... args) Log a formatted message at debug level.
java.lang.String	getName() Get the name of this logger.
void	info(java.lang.Object message) Log a message at info level.
void	info(java.lang.Object message, java.lang.Throwable exception) Log a message at info level.
void	info(java.lang.String message, java.lang.Object... args) Log a formatted message at info level.
boolean	isDebugEnabled() Checks whether DEBUG logging is enabled.
boolean	isInfoEnabled() Checks whether INFO logging is enabled.
boolean	isTraceEnabled() Checks whether TRACE logging is enabled.
void	log(Level level, java.lang.Object message) Log a message at the specified level.
void	log(Level level, java.lang.Object message, java.lang.Throwable exception) Log a message at the specified level.
void	trace(java.lang.Object message) Log a message at trace level.
void	trace(java.lang.Object message, java.lang.Throwable exception) Log a message at trace level.
void	trace(java.lang.String message, java.lang.Object... args) Log a formatted message at trace level.
void	warn(java.lang.Object message) Log a message at warning level.
void	warn(java.lang.Object message, java.lang.Throwable exception) Log a message at warning level.
void	warn(java.lang.String message, java.lang.Object... args) Log a formatted message at debug level.

Method Detail

getName

java.lang.String getName()

Get the name of this logger.

isDebugEnabled

boolean isDebugEnabled()

Checks whether DEBUG logging is enabled. This may return true, even when the logger is configured to not put the resulting output anywhere. You can use this method to avoid potential expensive (debugging) code when there is no need for it since it will be dropped anyway:

if (log.isDebugEnabled()) {
  ... expensive code here ...
  log.debug(result);
}
 

Returns:

true if debug messages would be displayed.

isInfoEnabled

boolean isInfoEnabled()

Checks whether INFO logging is enabled. This may return true, even when the logger is configured to not put the resulting output anywhere. You can use this method to avoid potential expensive (debugging) code when there is no need for it since it will be dropped anyway:

if (log.isInfoEnabled()) {
  ... expensive code here ...
  log.info(result);
}
 

Returns:

true if info messages would be displayed.

isTraceEnabled

boolean isTraceEnabled()

Checks whether TRACE logging is enabled. This may return true, even when the logger is configured to not put the resulting output anywhere. You can use this method to avoid potential expensive (debugging) code when there is no need for it since it will be dropped anyway:

if (log.isTraceEnabled()) {
  ... expensive code here ...
  log.trace(result);
}
 

Returns:

true if trace messages would be displayed.

log

void log(Level level,
       java.lang.Object message,
       java.lang.Throwable exception)

Log a message at the specified level.

Parameters:

level - the level at which to log

message - the message to log

exception - an exception that caused the message

log

void log(Level level,
       java.lang.Object message)

Log a message at the specified level.

Parameters:

level - the level at which to log

message - the message to log

trace

void trace(java.lang.Object message,
         java.lang.Throwable exception)

Log a message at trace level.

Parameters:

message - the message to log

exception - the exception that caused the message to be generated

trace

void trace(java.lang.Object message)

Log a message at trace level.

Parameters:

message - the message to log

trace

void trace(java.lang.String message,
         java.lang.Object... args)

Log a formatted message at trace level.

Parameters:

message - the message to log

args - the arguments for that message

debug

void debug(java.lang.Object message,
         java.lang.Throwable exception)

Log a message at debug level.

Parameters:

message - the message to log

exception - the exception that caused the message to be generated

debug

void debug(java.lang.Object message)

Log a message at debug level.

Parameters:

message - the message to log

debug

void debug(java.lang.String message,
         java.lang.Object... args)

Log a formatted message at debug level.

Parameters:

message - the message to log

args - the arguments for that message

info

void info(java.lang.Object message,
        java.lang.Throwable exception)

Log a message at info level.

Parameters:

message - the message to log

exception - the exception that caused the message to be generated

info

void info(java.lang.Object message)

Log a message at info level.

Parameters:

message - the message to log

info

void info(java.lang.String message,
        java.lang.Object... args)

Log a formatted message at info level.

Parameters:

message - the message to log

args - the arguments for that message

warn

void warn(java.lang.Object message,
        java.lang.Throwable exception)

Log a message at warning level.

Parameters:

message - the message to log

exception - the exception that caused the message to be generated

warn

void warn(java.lang.Object message)

Log a message at warning level.

Parameters:

message - the message to log

warn

void warn(java.lang.String message,
        java.lang.Object... args)

Log a formatted message at debug level.

Parameters:

message - the message to log

args - the arguments for that message

error

void error(java.lang.Object message,
         java.lang.Throwable exception)

Log a message at error level.

Parameters:

message - the message to log

exception - the exception that caused the message to be generated

error

void error(java.lang.Object message)

Log a message at error level.

Parameters:

message - the message to log

error

void error(java.lang.String message,
         java.lang.Object... args)

Log a formatted message at debug level.

Parameters:

message - the message to log

args - the arguments for that message

fatal

void fatal(java.lang.Object message,
         java.lang.Throwable exception)

Log a message at fatal level.

Parameters:

message - the message to log

exception - the exception that caused the message to be generated

fatal

void fatal(java.lang.Object message)

Log a message at fatal level.

Parameters:

message - the message to log

fatal

void fatal(java.lang.String message,
         java.lang.Object... args)

Log a formatted message at debug level.

Parameters:

message - the message to log

args - the arguments for that message