/* * Licensed to the Apache Software Foundation (ASF) under one or more * contributor license agreements. See the NOTICE file distributed with * this work for additional information regarding copyright ownership. * The ASF licenses this file to You under the Apache License, Version 2.0 * (the "License"); you may not use this file except in compliance with * the License. You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ package org.apache.commons.io.output; import java.io.Writer; /** * This {@link Writer} writes all data to the famous /dev/null. *
* This Writer
has no destination (file/socket etc.) and all
* characters written to it are ignored and lost.
*
* @version $Id: NullWriter.java 610010 2008-01-08 14:50:59Z niallp $
*/
public class NullWriter extends Writer {
/**
* A singleton.
*/
public static final NullWriter NULL_WRITER = new NullWriter();
/**
* Constructs a new NullWriter.
*/
public NullWriter() {
}
/**
* Does nothing - output to /dev/null
.
* @param idx The character to write
*/
public void write(int idx) {
//to /dev/null
}
/**
* Does nothing - output to /dev/null
.
* @param chr The characters to write
*/
public void write(char[] chr) {
//to /dev/null
}
/**
* Does nothing - output to /dev/null
.
* @param chr The characters to write
* @param st The start offset
* @param end The number of characters to write
*/
public void write(char[] chr, int st, int end) {
//to /dev/null
}
/**
* Does nothing - output to /dev/null
.
* @param str The string to write
*/
public void write(String str) {
//to /dev/null
}
/**
* Does nothing - output to /dev/null
.
* @param str The string to write
* @param st The start offset
* @param end The number of characters to write
*/
public void write(String str, int st, int end) {
//to /dev/null
}
/** @see java.io.Writer#flush() */
public void flush() {
//to /dev/null
}
/** @see java.io.Writer#close() */
public void close() {
//to /dev/null
}
}