org.xwiki.component.logging
Class VoidLogger

java.lang.Object
  org.xwiki.component.logging.VoidLogger

All Implemented Interfaces:

Logger

Deprecated. starting with 3.1M2 use SLF4J's NOPLogger instead

@Deprecated
public class VoidLogger
extends Object
implements Logger

Logger that doesn't do anything. Useful to use when no logger implementation is selected to prevent NPEs. In a component-based environment loggers are always set but when component classes are used as simple Java Beans the logger needs to be set and this logger implementation can be used when the user doesn't set explicitly a logger.

Since:

1.8RC3

Version:

$Id$

Constructor Summary

VoidLogger()
Deprecated.

Method Summary

void	debug(String message) Deprecated. Log a message with the debug priority.
void	debug(String message, Object... objects) Deprecated. Logs the message to the logger with debug priority while expanding the message with the objects passed.
void	debug(String message, Throwable throwable) Deprecated. Log a message with the debug priority, also printing the exception that caused this message, along with its stack trace.
void	debug(String message, Throwable throwable, Object... objects) Deprecated. Logs the message to the logger with debug priority while expanding the message with the objects passed, also printing the exception that caused this message, along with its stack trace.
void	error(String message) Deprecated. Log a message with the error priority.
void	error(String message, Object... objects) Deprecated. Logs the message to the logger with error priority while expanding the message with the objects passed.
void	error(String message, Throwable throwable) Deprecated. Log a message with the error priority, also printing the exception that caused this message, along with its stack trace.
void	error(String message, Throwable throwable, Object... objects) Deprecated. Logs the message to the logger with error priority while expanding the message with the objects passed, also printing the exception that caused this message, along with its stack trace.
void	info(String message) Deprecated. Log a message with the info priority.
void	info(String message, Object... objects) Deprecated. Logs the message to the logger with info priority while expanding the message with the objects passed.
void	info(String message, Throwable throwable) Deprecated. Log a message with the info priority, also printing the exception that caused this message, along with its stack trace.
void	info(String message, Throwable throwable, Object... objects) Deprecated. Logs the message to the logger with info priority while expanding the message with the objects passed, also printing the exception that caused this message, along with its stack trace.
boolean	isDebugEnabled() Deprecated. Check if the debug priority is enabled.
boolean	isErrorEnabled() Deprecated. Check if the error priority is enabled.
boolean	isInfoEnabled() Deprecated. Check if the info priority is enabled.
boolean	isWarnEnabled() Deprecated. Check if the warn priority is enabled.
void	warn(String message) Deprecated. Log a message with the warn priority.
void	warn(String message, Object... objects) Deprecated. Logs the message to the logger with warn priority while expanding the message with the objects passed.
void	warn(String message, Throwable throwable) Deprecated. Log a message with the warn priority, also printing the exception that caused this message, along with its stack trace.
void	warn(String message, Throwable throwable, Object... objects) Deprecated. Logs the message to the logger with warn priority while expanding the message with the objects passed, also printing the exception that caused this message, along with its stack trace.

Methods inherited from class java.lang.Object

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

Constructor Detail

VoidLogger

public VoidLogger()

Deprecated.

Method Detail

debug

public void debug(String message)

Deprecated.

Log a message with the debug priority.

Specified by:

debug in interface Logger

Parameters:

message - The message to be logged. No further processing of the message is performed.

debug

public void debug(String message,
                  Throwable throwable)

Deprecated.

Log a message with the debug priority, also printing the exception that caused this message, along with its stack trace.

Specified by:

debug in interface Logger

Parameters:

message - The message to be logged. No further processing of the message is performed.

throwable - The exception associated with the message, for stack trace output.

debug

public void debug(String message,
                  Object... objects)

Deprecated.

Logs the message to the logger with debug priority while expanding the message with the objects passed. The message uses the MessageFormat syntax.

Example: log.debug("Doc was created on {0} and was changed {1} times", date, 5); log.debug("There {0,choice,0#are|1#is|1<are} {0,choice,0#no|1#one|1<{0}} file{0,choice,0#s|1#|1<s}", nrFiles);

The logged message will only be formatted if the message is actually logged.

Specified by:

debug in interface Logger

Parameters:

message - The message to be formatted via MessageFormat

objects - The objects to be filled into the message

See Also:

MessageFormat

debug

public void debug(String message,
                  Throwable throwable,
                  Object... objects)

Deprecated.

Logs the message to the logger with debug priority while expanding the message with the objects passed, also printing the exception that caused this message, along with its stack trace. The message uses the MessageFormat syntax.

Example: log.debug("Unhandled exception while executing the query [{0}]", exception, query);

The logged message will only be assembled if the message is actually logged.

Specified by:

debug in interface Logger

Parameters:

message - The message to be formatted via MessageFormat

throwable - The exception associated with the message, for stack trace output.

objects - The objects to be filled into the message

See Also:

MessageFormat

error

public void error(String message)

Deprecated.

Log a message with the error priority.

Specified by:

error in interface Logger

Parameters:

message - The message to be logged. No further processing of the message is performed.

error

public void error(String message,
                  Throwable throwable)

Deprecated.

Log a message with the error priority, also printing the exception that caused this message, along with its stack trace.

Specified by:

error in interface Logger

Parameters:

message - The message to be logged. No further processing of the message is performed.

throwable - The exception associated with the message, for stack trace output.

error

public void error(String message,
                  Object... objects)

Deprecated.

Logs the message to the logger with error priority while expanding the message with the objects passed. The message uses the MessageFormat syntax.

Example: log.error("Doc was created on {0} and was changed {1} times", date, 5); log.error("There {0,choice,0#are|1#is|1<are} {0,choice,0#no|1#one|1<{0}} file{0,choice,0#s|1#|1<s}", nrFiles);

The logged message will only be assembled if the message is actually logged.

Specified by:

error in interface Logger

Parameters:

message - The message to be formatted via MessageFormat

objects - The objects to be filled into the message

See Also:

MessageFormat

error

public void error(String message,
                  Throwable throwable,
                  Object... objects)

Deprecated.

Logs the message to the logger with error priority while expanding the message with the objects passed, also printing the exception that caused this message, along with its stack trace. The message uses the MessageFormat syntax.

Example: log.error("Unhandled exception while executing the query [{0}]", exception, query);

The logged message will only be assembled if the message is actually logged.

Specified by:

error in interface Logger

Parameters:

message - The message to be formatted via MessageFormat

throwable - The exception associated with the message, for stack trace output.

objects - The objects to be filled into the message

See Also:

MessageFormat

info

public void info(String message)

Deprecated.

Log a message with the info priority.

Specified by:

info in interface Logger

Parameters:

message - The message to be logged. No further processing of the message is performed.

info

public void info(String message,
                 Throwable throwable)

Deprecated.

Log a message with the info priority, also printing the exception that caused this message, along with its stack trace.

Specified by:

info in interface Logger

Parameters:

message - The message to be logged. No further processing of the message is performed.

throwable - The exception associated with the message, for stack trace output.

info

public void info(String message,
                 Object... objects)

Deprecated.

Logs the message to the logger with info priority while expanding the message with the objects passed. The message uses the MessageFormat syntax.

Example: log.info("Doc was created on {0} and was changed {1} times", date, 5); log.info("There {0,choice,0#are|1#is|1<are} {0,choice,0#no|1#one|1<{0}} file{0,choice,0#s|1#|1<s}", nrFiles);

The logged message will only be assembled if the message is actually logged.

Specified by:

info in interface Logger

Parameters:

message - The message to be formatted via MessageFormat

objects - The objects to be filled into the message

See Also:

MessageFormat

info

public void info(String message,
                 Throwable throwable,
                 Object... objects)

Deprecated.

Logs the message to the logger with info priority while expanding the message with the objects passed, also printing the exception that caused this message, along with its stack trace. The message uses the MessageFormat syntax.

Example: log.info("Unhandled exception while executing the query [{0}]", exception, query);

The logged message will only be assembled if the message is actually logged.

Specified by:

info in interface Logger

Parameters:

message - The message to be formatted via MessageFormat

throwable - The exception associated with the message, for stack trace output.

objects - The objects to be filled into the message

See Also:

MessageFormat

isDebugEnabled

public boolean isDebugEnabled()

Deprecated.

Check if the debug priority is enabled.

Specified by:

isDebugEnabled in interface Logger

Returns:

true if messages with debug priority will be logged, false otherwise

isErrorEnabled

public boolean isErrorEnabled()

Deprecated.

Check if the error priority is enabled.

Specified by:

isErrorEnabled in interface Logger

Returns:

true if messages with error priority will be logged, false otherwise

isInfoEnabled

public boolean isInfoEnabled()

Deprecated.

Check if the info priority is enabled.

Specified by:

isInfoEnabled in interface Logger

Returns:

true if messages with info priority will be logged, false otherwise

isWarnEnabled

public boolean isWarnEnabled()

Deprecated.

Check if the warn priority is enabled.

Specified by:

isWarnEnabled in interface Logger

Returns:

true if messages with warn priority will be logged, false otherwise

warn

public void warn(String message)

Deprecated.

Log a message with the warn priority.

Specified by:

warn in interface Logger

Parameters:

message - The message to be logged. No further processing of the message is performed.

warn

public void warn(String message,
                 Throwable throwable)

Deprecated.

Log a message with the warn priority, also printing the exception that caused this message, along with its stack trace.

Specified by:

warn in interface Logger

Parameters:

message - The message to be logged. No further processing of the message is performed.

throwable - The exception associated with the message, for stack trace output.

warn

public void warn(String message,
                 Object... objects)

Deprecated.

Logs the message to the logger with warn priority while expanding the message with the objects passed. The message uses the MessageFormat syntax.

Example: log.warn("Doc was created on {0} and was changed {1} times", date, 5); log.warn("There {0,choice,0#are|1#is|1<are} {0,choice,0#no|1#one|1<{0}} file{0,choice,0#s|1#|1<s}", nrFiles);

The logged message will only be assembled if the message is actually logged.

Specified by:

warn in interface Logger

Parameters:

message - The message to be formatted via MessageFormat

objects - The objects to be filled into the message

See Also:

MessageFormat

warn

public void warn(String message,
                 Throwable throwable,
                 Object... objects)

Deprecated.

Logs the message to the logger with warn priority while expanding the message with the objects passed, also printing the exception that caused this message, along with its stack trace. The message uses the MessageFormat syntax.

Example: log.warn("Unhandled exception while executing the query [{0}]", exception, query);

The logged message will only be assembled if the message is actually logged.

Specified by:

warn in interface Logger

Parameters:

message - The message to be formatted via MessageFormat

throwable - The exception associated with the message, for stack trace output.

objects - The objects to be filled into the message

See Also:

MessageFormat