org.apache.commons.io.output

Class NullWriter

java.lang.Object

java.io.Writer

org.apache.commons.io.output.NullWriter

All Implemented Interfaces:

java.io.Closeable, java.io.Flushable, java.lang.Appendable, java.lang.AutoCloseable

public class NullWriter
extends java.io.Writer

This Writer writes all data to the famous /dev/null.

This Writer has no destination (file/socket etc.) and all characters written to it are ignored and lost.

Version:

$Id: NullWriter.java 610010 2008-01-08 14:50:59Z niallp $

Field Summary

Fields

Modifier and Type	Field and Description
static NullWriter	NULL_WRITER A singleton.

Fields inherited from class java.io.Writer

lock

Constructor Summary

Constructors

Constructor and Description
NullWriter() Constructs a new NullWriter.

Method Summary

Methods

Modifier and Type	Method and Description
void	close()
void	flush()
void	write(char[] chr) Does nothing - output to /dev/null.
void	write(char[] chr, int st, int end) Does nothing - output to /dev/null.
void	write(int idx) Does nothing - output to /dev/null.
void	write(java.lang.String str) Does nothing - output to /dev/null.
void	write(java.lang.String str, int st, int end) Does nothing - output to /dev/null.

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

Field Detail

NULL_WRITER

public static final NullWriter NULL_WRITER

A singleton.

Constructor Detail

NullWriter

public NullWriter()

Constructs a new NullWriter.

Method Detail

write

public void write(int idx)

Does nothing - output to /dev/null.

Overrides:

write in class java.io.Writer

Parameters:

idx - The character to write

write

public void write(char[] chr)

Does nothing - output to /dev/null.

Overrides:

write in class java.io.Writer

Parameters:

chr - The characters to write

write

public void write(char[] chr,
         int st,
         int end)

Does nothing - output to /dev/null.

Specified by:

write in class java.io.Writer

Parameters:

chr - The characters to write

st - The start offset

end - The number of characters to write

write

public void write(java.lang.String str)

Does nothing - output to /dev/null.

Overrides:

write in class java.io.Writer

Parameters:

str - The string to write

write

public void write(java.lang.String str,
         int st,
         int end)

Does nothing - output to /dev/null.

Overrides:

write in class java.io.Writer

Parameters:

str - The string to write

st - The start offset

end - The number of characters to write

flush

public void flush()

Specified by:

flush in interface java.io.Flushable

Specified by:

flush in class java.io.Writer

See Also:

Writer.flush()

close

public void close()

Specified by:

close in interface java.io.Closeable

Specified by:

close in interface java.lang.AutoCloseable

Specified by:

close in class java.io.Writer

See Also:

Writer.close()