nullwriter.java

来自「Mandarax是一个规则引擎的纯Java实现。它支持多类型的事实和基于反映的规」· Java 代码 · 共 55 行

/*
 * Copyright (C) 1999-2004 <A href="http://www-ist.massey.ac.nz/JBDietrich" target="_top">Jens Dietrich</a>
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2 of the License, or (at your option) any later version.
 *
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 */
package org.mandarax.util;

import java.io.*;

/**
 * A writer that does nothing. 
 * @author <A href="http://www-ist.massey.ac.nz/JBDietrich" target="_top">Jens Dietrich</A>
 * @version 3.4 <7 March 05>
 * @since 3.0
 */

public class NullWriter extends Writer {
	public static NullWriter nullWriter = new NullWriter();
	public static PrintWriter printWriter = new PrintWriter(nullWriter);

	/**
	 * Close the writer.
	 */
	public void close() {
		// nothing to do here
	}
	/**
	 * Flush the writer.
	 */
	public void flush() {
		// nothing to do here
	}
	/**
	 * Write data.
	 * @param cbuf - Array of characters
	 * @param off - Offset from which to start writing characters
	 * @param len - Number of characters to write
	 */
	public void write(char[] cbuf,int off, int len) {
		// nothing to do here
	}
}