/*
* Copyright (c) 1996, 2005, Oracle and/or its affiliates. All rights reserved.
* ORACLE PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.
*
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package java.io;
/**
* Abstract class for writing filtered character streams.
* The abstract class <code>FilterWriter</code> itself
* provides default methods that pass all requests to the
* contained stream. Subclasses of <code>FilterWriter</code>
* should override some of these methods and may also
* provide additional methods and fields.
*
* @author Mark Reinhold
* @since JDK1.1
*/
public abstract class
FilterWriter extends
Writer {
/**
* The underlying character-output stream.
*/
protected
Writer out;
/**
* Create a new filtered writer.
*
* @param out a Writer object to provide the underlying stream.
* @throws NullPointerException if <code>out</code> is <code>null</code>
*/
protected
FilterWriter(
Writer out) {
super(
out);
this.
out =
out;
}
/**
* Writes a single character.
*
* @exception IOException If an I/O error occurs
*/
public void
write(int
c) throws
IOException {
out.
write(
c);
}
/**
* Writes a portion of an array of characters.
*
* @param cbuf Buffer of characters to be written
* @param off Offset from which to start reading characters
* @param len Number of characters to be written
*
* @exception IOException If an I/O error occurs
*/
public void
write(char
cbuf[], int
off, int
len) throws
IOException {
out.
write(
cbuf,
off,
len);
}
/**
* Writes a portion of a string.
*
* @param str String to be written
* @param off Offset from which to start reading characters
* @param len Number of characters to be written
*
* @exception IOException If an I/O error occurs
*/
public void
write(
String str, int
off, int
len) throws
IOException {
out.
write(
str,
off,
len);
}
/**
* Flushes the stream.
*
* @exception IOException If an I/O error occurs
*/
public void
flush() throws
IOException {
out.
flush();
}
public void
close() throws
IOException {
out.
close();
}
}