org.apache.commons.io.output

Class NullOutputStream

java.lang.Object

java.io.OutputStream

org.apache.commons.io.output.NullOutputStream

All Implemented Interfaces:

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

public class NullOutputStream
extends java.io.OutputStream

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

This output stream has no destination (file/socket etc.) and all bytes written to it are ignored and lost.

Field Summary

Fields

Modifier and Type	Field and Description
static NullOutputStream	NULL_OUTPUT_STREAM A singleton.

Constructor Summary

Constructors

Constructor and Description
NullOutputStream()

Method Summary

Modifier and Type	Method and Description
void	write(byte[] b) Does nothing - output to /dev/null.
void	write(byte[] b, int off, int len) Does nothing - output to /dev/null.
void	write(int b) Does nothing - output to /dev/null.

Methods inherited from class java.io.OutputStream

close, flush

Methods inherited from class java.lang.Object

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

Field Detail

NULL_OUTPUT_STREAM

public static final NullOutputStream NULL_OUTPUT_STREAM

A singleton.

Constructor Detail

NullOutputStream

public NullOutputStream()

Method Detail

write

public void write(byte[] b,
                  int off,
                  int len)

Does nothing - output to /dev/null.

Overrides:

write in class java.io.OutputStream

Parameters:

b - The bytes to write

off - The start offset

len - The number of bytes to write

write

public void write(int b)

Does nothing - output to /dev/null.

Specified by:

write in class java.io.OutputStream

Parameters:

b - The byte to write

write

public void write(byte[] b)
           throws java.io.IOException

Does nothing - output to /dev/null.

Overrides:

write in class java.io.OutputStream

Parameters:

b - The bytes to write

Throws:

java.io.IOException - never