org.apache.commons.io.output
Class ClosedOutputStream

java.lang.Object
  java.io.OutputStream
      org.apache.commons.io.output.ClosedOutputStream

All Implemented Interfaces:

Closeable, Flushable

public class ClosedOutputStream
extends OutputStream

Closed output stream. This stream throws an exception on all attempts to write something to the stream.

Typically uses of this class include testing for corner cases in methods that accept an output stream and acting as a sentinel value instead of a null output stream.

Since:

1.4

Version:

$Id: ClosedOutputStream.java 1304052 2012-03-22 20:55:29Z ggregory $

Field Summary

static ClosedOutputStream

CLOSED_OUTPUT_STREAM A singleton.

Constructor Summary

ClosedOutputStream()

Method Summary

void	write(int b) Throws an IOException to indicate that the stream is closed.

Methods inherited from class java.io.OutputStream

close, flush, write, write

Methods inherited from class java.lang.Object

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

Field Detail

CLOSED_OUTPUT_STREAM

public static final ClosedOutputStream CLOSED_OUTPUT_STREAM

A singleton.

Constructor Detail

ClosedOutputStream

public ClosedOutputStream()

Method Detail

write

public void write(int b)
           throws IOException

Throws an IOException to indicate that the stream is closed.

Specified by:

write in class OutputStream

Parameters:

b - ignored

Throws:

IOException - always thrown