public class OnlyOnceErrorHandler extends java.lang.Object implements ErrorHandler
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.
构造器和说明 |
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OnlyOnceErrorHandler() |
限定符和类型 | 方法和说明 |
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void |
activateOptions()
No options to activate.
|
void |
error(java.lang.String message)
Print a the error message passed as parameter on
System.err . |
void |
error(java.lang.String message,
java.lang.Exception e,
int errorCode)
Prints the message and the stack trace of the exception on
System.err . |
void |
error(java.lang.String message,
java.lang.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.
|
public void setLogger(Logger logger)
setLogger
在接口中 ErrorHandler
logger
- One of the loggers that will be searched for the failing
appender in view of replacement.public void activateOptions()
activateOptions
在接口中 OptionHandler
public void error(java.lang.String message, java.lang.Exception e, int errorCode)
System.err
.error
在接口中 ErrorHandler
public void error(java.lang.String message, java.lang.Exception e, int errorCode, LoggingEvent event)
System.err
.error
在接口中 ErrorHandler
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.public void error(java.lang.String message)
System.err
.error
在接口中 ErrorHandler
public void setAppender(Appender appender)
setAppender
在接口中 ErrorHandler
public void setBackupAppender(Appender appender)
setBackupAppender
在接口中 ErrorHandler