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Home » SLF4J-1.5.8 » org.apache » log4j » varia » [javadoc | source]
org.apache.log4j.varia
public class: NullAppender [javadoc | source] 
java.lang.Object
   org.apache.log4j.AppenderSkeleton
      org.apache.log4j.varia.NullAppender

All Implemented Interfaces:
    OptionHandler, Appender

A NullAppender merely exists, it never outputs a message to any device.
Fields inherited from org.apache.log4j.AppenderSkeleton:
layout,  name,  threshold,  errorHandler,  headFilter,  tailFilter,  closed
Constructor:
 public NullAppender()
Method from org.apache.log4j.varia.NullAppender Summary:
activateOptions,   append,   close,   doAppend,   getInstance,   requiresLayout
Methods from org.apache.log4j.AppenderSkeleton:
activateOptions,   addFilter,   append,   clearFilters,   doAppend,   finalize,   getErrorHandler,   getFilter,   getFirstFilter,   getLayout,   getName,   getThreshold,   isAsSevereAsThreshold,   setErrorHandler,   setLayout,   setName,   setThreshold
Methods from java.lang.Object:
clone,   equals,   finalize,   getClass,   hashCode,   notify,   notifyAll,   toString,   wait,   wait,   wait
Method from org.apache.log4j.varia.NullAppender Detail:
 public  void activateOptions()
    There are no options to acticate.
 protected  void append(LoggingEvent event)
    Does not do anything.
 public  void close() 
 public  void doAppend(LoggingEvent event)
    Does not do anything.
 public NullAppender getInstance()
    Whenever you can, use this method to retreive an instance instead of instantiating a new one with new.
 public boolean requiresLayout()
    NullAppenders do not need a layout.