org.apache.log4j.performance
Class NOPWriter

java.lang.Object
  java.io.Writer
      org.apache.log4j.performance.NOPWriter

All Implemented Interfaces:

Closeable, Flushable, Appendable

public class NOPWriter
extends Writer

Extends Writer with methods that return immediately without doing anything. This class is used to measure the cost of constructing a log message but not actually writing to any device.

The org.apache.log4j.performance.NOPWriter class is intended for internal use only. Consequently, it is not included in the log4j.jar file.

Author:

Ceki Gülcü

Field Summary

Fields inherited from class java.io.Writer

lock

Constructor Summary

NOPWriter()

Method Summary

void	close()
void	flush()
void	write(char[] cbuf)
void	write(char[] cbuf, int off, int len)
void	write(int b)
void	write(String s)
void	write(String s, int off, int len)

Methods inherited from class java.io.Writer

append, append, append

Methods inherited from class java.lang.Object

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

Constructor Detail

NOPWriter

public NOPWriter()

Method Detail

write

public void write(char[] cbuf)
           throws IOException

Overrides:

write in class Writer

Throws:

IOException

write

public void write(char[] cbuf,
                  int off,
                  int len)
           throws IOException

Specified by:

write in class Writer

Throws:

IOException

write

public void write(int b)
           throws IOException

Overrides:

write in class Writer

Throws:

IOException

write

public void write(String s)
           throws IOException

Overrides:

write in class Writer

Throws:

IOException

write

public void write(String s,
                  int off,
                  int len)
           throws IOException

Overrides:

write in class Writer

Throws:

IOException

flush

public void flush()
           throws IOException

Specified by:

flush in interface Flushable

Specified by:

flush in class Writer

Throws:

IOException

close

public void close()
           throws IOException

Specified by:

close in interface Closeable

Specified by:

close in class Writer

Throws:

IOException