com.lightstreamer.log

Interface Logger

public interface Logger

Interface to be implemented to consume log from the library.
Instances of implemented classes are obtained by the library through the LoggerProvider instance set on LightstreamerClient.setLoggerProvider(com.lightstreamer.log.LoggerProvider).

Method Summary

Methods

Modifier and Type	Method and Description
void	debug(java.lang.String line) Receives log messages at Debug level.
void	debug(java.lang.String line, java.lang.Throwable exception) Receives log messages at Debug level and a related exception.
void	error(java.lang.String line) Receives log messages at Error level.
void	error(java.lang.String line, java.lang.Throwable exception) Receives log messages at Error level and a related exception.
void	fatal(java.lang.String line) Receives log messages at Fatal level.
void	fatal(java.lang.String line, java.lang.Throwable exception) Receives log messages at Fatal level and a related exception.
void	info(java.lang.String line) Receives log messages at Info level.
void	info(java.lang.String line, java.lang.Throwable exception) Receives log messages at Info level and a related exception.
boolean	isDebugEnabled() Checks if this logger is enabled for the Debug level.
boolean	isErrorEnabled() Checks if this logger is enabled for the Error level.
boolean	isFatalEnabled() Checks if this logger is enabled for the Fatal level.
boolean	isInfoEnabled() Checks if this logger is enabled for the Info level.
boolean	isWarnEnabled() Checks if this logger is enabled for the Warn level.
void	warn(java.lang.String line) Receives log messages at Warn level.
void	warn(java.lang.String line, java.lang.Throwable exception) Receives log messages at Warn level and a related exception.

Method Detail

error

void error(java.lang.String line)

Receives log messages at Error level.

Parameters:

line - The message to be logged.

error

void error(java.lang.String line,
         java.lang.Throwable exception)

Receives log messages at Error level and a related exception.

Parameters:

line - The message to be logged.

exception - An Exception instance related to the current log message.

warn

void warn(java.lang.String line)

Receives log messages at Warn level.

Parameters:

line - The message to be logged.

warn

void warn(java.lang.String line,
        java.lang.Throwable exception)

Receives log messages at Warn level and a related exception.

Parameters:

line - The message to be logged.

exception - An Exception instance related to the current log message.

info

void info(java.lang.String line)

Receives log messages at Info level.

Parameters:

line - The message to be logged.

info

void info(java.lang.String line,
        java.lang.Throwable exception)

Receives log messages at Info level and a related exception.

Parameters:

line - The message to be logged.

exception - An Exception instance related to the current log message.

debug

void debug(java.lang.String line)

Receives log messages at Debug level.

Parameters:

line - The message to be logged.

debug

void debug(java.lang.String line,
         java.lang.Throwable exception)

Receives log messages at Debug level and a related exception.

Parameters:

line - The message to be logged.

exception - An Exception instance related to the current log message.

fatal

void fatal(java.lang.String line)

Receives log messages at Fatal level.

Parameters:

line - The message to be logged.

fatal

void fatal(java.lang.String line,
         java.lang.Throwable exception)

Receives log messages at Fatal level and a related exception.

Parameters:

line - The message to be logged.

exception - An Exception instance related to the current log message.

isDebugEnabled

boolean isDebugEnabled()

Checks if this logger is enabled for the Debug level.
The property should be true if this logger is enabled for Debug events, false otherwise.
This property is intended to lessen the computational cost of disabled log Debug statements. Note that even if the property is false, Debug log lines may be received anyway by the Debug methods.

isInfoEnabled

boolean isInfoEnabled()

Checks if this logger is enabled for the Info level.
The property should be true if this logger is enabled for Info events, false otherwise.
This property is intended to lessen the computational cost of disabled log Info statements. Note that even if the property is false, Info log lines may be received anyway by the Info methods.

isWarnEnabled

boolean isWarnEnabled()

Checks if this logger is enabled for the Warn level.
The property should be true if this logger is enabled for Warn events, false otherwise.
This property is intended to lessen the computational cost of disabled log Warn statements. Note that even if the property is false, Warn log lines may be received anyway by the Warn methods.

isErrorEnabled

boolean isErrorEnabled()

Checks if this logger is enabled for the Error level.
The property should be true if this logger is enabled for Error events, false otherwise.
This property is intended to lessen the computational cost of disabled log Error statements. Note that even if the property is false, Error log lines may be received anyway by the Error methods.

isFatalEnabled

boolean isFatalEnabled()

Checks if this logger is enabled for the Fatal level.
The property should be true if this logger is enabled for Fatal events, false otherwise.
This property is intended to lessen the computational cost of disabled log Fatal statements. Note that even if the property is false, Fatal log lines may be received anyway by the Fatal methods.