/*******************************************************************************
* Copyright (c) 1998, 2015 Oracle and/or its affiliates. All rights reserved.
* This program and the accompanying materials are made available under the
* terms of the Eclipse Public License v1.0 and Eclipse Distribution License v. 1.0
* which accompanies this distribution.
* The Eclipse Public License is available at http://www.eclipse.org/legal/epl-v10.html
* and the Eclipse Distribution License is available at
* http://www.eclipse.org/org/documents/edl-v10.php.
*
* Contributors:
* Oracle - initial API and implementation from Oracle TopLink
******************************************************************************/
package org.eclipse.persistence.tools.workbench.utility.io;
import java.io.Writer;
import org.eclipse.persistence.tools.workbench.utility.ClassTools;
/**
* This is a writer that does nothing.
* Everything is thrown into the "bit bucket".
* Performance should be pretty good....
*/
public final class NullWriter extends Writer {
// singleton
private static Writer INSTANCE;
/**
* Return the singleton.
*/
public static synchronized Writer instance() {
if (INSTANCE == null) {
INSTANCE = new NullWriter();
}
return INSTANCE;
}
/**
* Ensure non-instantiability.
*/
private NullWriter() {
super();
}
/**
* @see java.io.Writer#write(char[], int, int)
*/
public void write(char[] cbuf, int off, int len) {
// do nothing
}
/**
* @see java.io.Writer#flush()
*/
public void flush() {
// do nothing
}
/**
* @see java.io.Writer#close()
*/
public void close() {
// do nothing
}
/**
* @see java.io.Writer#write(char[])
*/
public void write(char[] cbuf) {
// do nothing
}
/**
* @see java.io.Writer#write(int)
*/
public void write(int c) {
// do nothing
}
/**
* @see java.io.Writer#write(String, int, int)
*/
public void write(String str, int off, int len) {
// do nothing
}
/**
* @see java.io.Writer#write(String)
*/
public void write(String str) {
// do nothing
}
/**
* @see Object#toString()
*/
public String toString() {
return ClassTools.shortClassNameForObject(this);
}
}