org.apache.commons.io.output
Class ProxyWriter

java.lang.Object
  java.io.Writer
      java.io.FilterWriter
          org.apache.commons.io.output.ProxyWriter

All Implemented Interfaces:

Closeable, Flushable, Appendable

public class ProxyWriter
extends FilterWriter

A Proxy stream which acts as expected, that is it passes the method calls on to the proxied stream and doesn't change which methods are being called. It is an alternative base class to FilterWriter to increase reusability, because FilterWriter changes the methods being called, such as write(char[]) to write(char[], int, int) and write(String) to write(String, int, int).

Version:

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

Author:

Stephen Colebourne

Field Summary

Fields inherited from class java.io.FilterWriter

out

Fields inherited from class java.io.Writer

lock

Constructor Summary

ProxyWriter(Writer proxy)
Constructs a new ProxyWriter.

Method Summary

void	close() Invokes the delegate's close() method.
void	flush() Invokes the delegate's flush() method.
void	write(char[] chr) Invokes the delegate's write(char[]) method.
void	write(char[] chr, int st, int end) Invokes the delegate's write(char[], int, int) method.
void	write(int idx) Invokes the delegate's write(int) method.
void	write(String str) Invokes the delegate's write(String) method.
void	write(String str, int st, int end) Invokes the delegate's write(String) method.

Methods inherited from class java.io.Writer

append, append, append, append, append, append

Methods inherited from class java.lang.Object

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

Constructor Detail

ProxyWriter

public ProxyWriter(Writer proxy)

Constructs a new ProxyWriter.

Parameters:

proxy - the Writer to delegate to

Method Detail

write

public void write(int idx)
           throws IOException

Invokes the delegate's write(int) method.

Overrides:

write in class FilterWriter

Parameters:

idx - the character to write

Throws:

IOException - if an I/O error occurs

write

public void write(char[] chr)
           throws IOException

Invokes the delegate's write(char[]) method.

Overrides:

write in class Writer

Parameters:

chr - the characters to write

Throws:

IOException - if an I/O error occurs

write

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

Invokes the delegate's write(char[], int, int) method.

Overrides:

write in class FilterWriter

Parameters:

chr - the characters to write

st - The start offset

end - The number of characters to write

Throws:

IOException - if an I/O error occurs

write

public void write(String str)
           throws IOException

Invokes the delegate's write(String) method.

Overrides:

write in class Writer

Parameters:

str - the string to write

Throws:

IOException - if an I/O error occurs

write

public void write(String str,
                  int st,
                  int end)
           throws IOException

Invokes the delegate's write(String) method.

Overrides:

write in class FilterWriter

Parameters:

str - the string to write

st - The start offset

end - The number of characters to write

Throws:

IOException - if an I/O error occurs

flush

public void flush()
           throws IOException

Invokes the delegate's flush() method.

Specified by:

flush in interface Flushable

Overrides:

flush in class FilterWriter

Throws:

IOException - if an I/O error occurs

close

public void close()
           throws IOException

Invokes the delegate's close() method.

Specified by:

close in interface Closeable

Overrides:

close in class FilterWriter

Throws:

IOException - if an I/O error occurs