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java.lang.Objectorg.apache.log4j.helpers.OnlyOnceErrorHandler
public class OnlyOnceErrorHandler
The OnlyOnceErrorHandler implements log4j's default
error handling policy which consists of emitting a message for the
first error in an appender and ignoring all following errors.
The error message is printed on System.err.
This policy aims at protecting an otherwise working application from being flooded with error messages when logging fails.
| Constructor Summary | |
|---|---|
OnlyOnceErrorHandler()
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| Method Summary | |
|---|---|
void |
activateOptions()
No options to activate. |
void |
error(String message)
Print a the error message passed as parameter on System.err. |
void |
error(String message,
Exception e,
int errorCode)
Prints the message and the stack trace of the exception on System.err. |
void |
error(String message,
Exception e,
int errorCode,
LoggingEvent event)
Prints the message and the stack trace of the exception on System.err. |
void |
setAppender(Appender appender)
Does not do anything. |
void |
setBackupAppender(Appender appender)
Does not do anything. |
void |
setLogger(Logger logger)
Does not do anything. |
| Methods inherited from class java.lang.Object |
|---|
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
| Constructor Detail |
|---|
public OnlyOnceErrorHandler()
| Method Detail |
|---|
public void setLogger(Logger logger)
setLogger in interface ErrorHandlerlogger - One of the loggers that will be searched for the failing
appender in view of replacement.public void activateOptions()
activateOptions in interface OptionHandler
public void error(String message,
Exception e,
int errorCode)
System.err.
error in interface ErrorHandler
public void error(String message,
Exception e,
int errorCode,
LoggingEvent event)
System.err.
error in interface ErrorHandlermessage - The message assoicated with the error.e - The Exption that was thrown when the error occured.errorCode - The error code associated with the error.event - The logging event that the failing appender is asked
to log.public void error(String message)
System.err.
error in interface ErrorHandlerpublic void setAppender(Appender appender)
setAppender in interface ErrorHandlerpublic void setBackupAppender(Appender appender)
setBackupAppender in interface ErrorHandler
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