Log4j Version 1.2.14: Class NullAppender

Log4j 1.2

previous page next page

Overview

Package

Class

Use

Tree

Deprecated

Index

Help

Log4j 1.2.14

PREV CLASS NEXT CLASS

FRAMES NO FRAMES

SUMMARY: INNER | FIELD | CONSTR | METHOD

DETAIL: FIELD | CONSTR | METHOD

org.apache.log4j.performance Class NullAppender

java.lang.Object
  |
  +--org.apache.log4j.AppenderSkeleton
        |
        +--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.

Field Summary
`static String`	`s`
`String`	`t`

Fields inherited from class org.apache.log4j.AppenderSkeleton

closed, errorHandler, headFilter, layout, name, tailFilter, threshold

Constructor Summary
`NullAppender()`
`NullAppender(Layout layout)`

Method Summary
`void`	`append(LoggingEvent event)` Subclasses of `AppenderSkeleton` should implement this method to perform actual logging.
`void`	`close()` Release any resources allocated within the appender such as file handles, network connections, etc.
`void`	`doAppend(LoggingEvent event)` This method performs threshold checks and invokes filters before delegating actual logging to the subclasses specific `AppenderSkeleton.append(org.apache.log4j.spi.LoggingEvent)` method.
`boolean`	`requiresLayout()` This is a bogus appender but it still uses a layout.

Methods inherited from class org.apache.log4j.AppenderSkeleton

activateOptions, addFilter, clearFilters, finalize, getErrorHandler, getFilter, getFirstFilter, getLayout, getName, getThreshold, isAsSevereAsThreshold, setErrorHandler, setLayout, setName, setThreshold

Methods inherited from class java.lang.Object

clone, equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

s

public static String s

t

public String t

Constructor Detail

NullAppender

public NullAppender()

NullAppender

public NullAppender(Layout layout)

Method Detail

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.