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Log4j Version 1.2.7: Class NullAppender
org.apache.log4j.performance
Class NullAppender
java.lang.Object
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+--org.apache.log4j.AppenderSkeleton
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+--org.apache.log4j.performance.NullAppender
- All Implemented Interfaces:
- Appender, OptionHandler
- public class NullAppender
- extends AppenderSkeleton
A bogus appender which calls the format method of its layout object
but does not write the result anywhere.
The
org.apache.log4j.performance.NullAppender class is
intended for internal use only. Consequently, it is not
included in the log4j.jar file.
Methods inherited from class org.apache.log4j.AppenderSkeleton |
activateOptions, addFilter, clearFilters, finalize, getErrorHandler, getFilter, getFirstFilter, getLayout, getName, getThreshold, isAsSevereAsThreshold, setErrorHandler, setLayout, setName, setThreshold |
s
public static String s
t
public String t
NullAppender
public NullAppender()
NullAppender
public NullAppender(Layout layout)
close
public void close()
- Description copied from interface:
Appender
- Release any resources allocated within the appender such as file
handles, network connections, etc.
It is a programming error to append to a closed appender.
doAppend
public void doAppend(LoggingEvent event)
- Description copied from class:
AppenderSkeleton
- This method performs threshold checks and invokes filters before
delegating actual logging to the subclasses specific
AppenderSkeleton.append(org.apache.log4j.spi.LoggingEvent) method.
- Overrides:
doAppend in class AppenderSkeleton
append
public void append(LoggingEvent event)
- Description copied from class:
AppenderSkeleton
- Subclasses of
AppenderSkeleton should implement this
method to perform actual logging. See also AppenderSkeleton.doAppend method.
- Overrides:
append in class AppenderSkeleton
requiresLayout
public boolean requiresLayout()
- This is a bogus appender but it still uses a layout.
Copyright 2000-2002 Apache Software Foundation.
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