Package org.apache.log4j.helpers
Class OnlyOnceErrorHandler
java.lang.Object
org.apache.log4j.helpers.OnlyOnceErrorHandler
- All Implemented Interfaces:
ErrorHandler,OptionHandler
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.
- Since:
- 0.9.0
- Author:
- Ceki Gülcü
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Constructor Summary
Constructors -
Method Summary
Modifier and TypeMethodDescriptionvoidNo options to activate.voidPrint a the error message passed as parameter onSystem.err.voidPrints the message and the stack trace of the exception onSystem.err.voiderror(String message, Exception e, int errorCode, LoggingEvent event) Prints the message and the stack trace of the exception onSystem.err.voidsetAppender(Appender appender) Does not do anything.voidsetBackupAppender(Appender appender) Does not do anything.voidDoes not do anything.
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Constructor Details
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OnlyOnceErrorHandler
public OnlyOnceErrorHandler()
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Method Details
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setLogger
Does not do anything.- Specified by:
setLoggerin interfaceErrorHandler- Parameters:
logger- One of the loggers that will be searched for the failing appender in view of replacement.
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activateOptions
public void activateOptions()No options to activate.- Specified by:
activateOptionsin interfaceOptionHandler
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error
Prints the message and the stack trace of the exception onSystem.err.- Specified by:
errorin interfaceErrorHandler
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error
Prints the message and the stack trace of the exception onSystem.err.- Specified by:
errorin interfaceErrorHandler- Parameters:
message- 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.
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error
Print a the error message passed as parameter onSystem.err.- Specified by:
errorin interfaceErrorHandler
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setAppender
Does not do anything.- Specified by:
setAppenderin interfaceErrorHandler
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setBackupAppender
Does not do anything.- Specified by:
setBackupAppenderin interfaceErrorHandler
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