ClosedOutputStream (Commons IO 2.4)

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

All Implemented Interfaces:

java.io.Closeable, java.io.Flushable, java.lang.AutoCloseable
```
public class ClosedOutputStream
extends java.io.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 1307459 2012-03-30 15:11:44Z ggregory $

- Field Summary
  
  Fields
  Modifier and Type Field Description
  
  static ClosedOutputStream CLOSED_OUTPUT_STREAM
  A singleton.
- Constructor Summary
  
  Constructors
  Constructor Description
  
  ClosedOutputStream()
- Method Summary
  
  All Methods Instance Methods Concrete Methods
  Modifier and Type Method Description
  
  void write(int b)
  Throws an IOException to indicate that the stream is closed.
  - Methods inherited from class java.io.OutputStream
    close, flush, nullOutputStream, 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 java.io.IOException
```
    Throws an IOException to indicate that the stream is closed.
    
    Specified by:
    
    write in class java.io.OutputStream
    
    Parameters:
    
    b - ignored
    
    Throws:
    
    java.io.IOException - always thrown