BooleanTextWriter.java

/*
 * Copyright Aduna (http://www.aduna-software.com/) (c) 2007.
 *
 * Licensed under the Aduna BSD-style license.
 */
package org.openrdf.query.resultio.text;

import java.io.IOException;
import java.io.OutputStream;
import java.io.OutputStreamWriter;
import java.io.Writer;
import java.nio.charset.Charset;

import org.openrdf.query.resultio.BooleanQueryResultFormat;
import org.openrdf.query.resultio.BooleanQueryResultWriter;

/**
 * Writer for the plain text boolean result format.
 * 
 * @author Arjohn Kampman
 */
public class BooleanTextWriter implements BooleanQueryResultWriter {

	/*-----------*
	 * Variables *
	 *-----------*/

	/**
	 * The writer to write the boolean result to.
	 */
	private Writer writer;

	/*--------------*
	 * Constructors *
	 *--------------*/

	public BooleanTextWriter(OutputStream out) {
		writer = new OutputStreamWriter(out, Charset.forName("US-ASCII"));
	}

	/*---------*
	 * Methods *
	 *---------*/

	public final BooleanQueryResultFormat getBooleanQueryResultFormat() {
		return BooleanQueryResultFormat.TEXT;
	}

	public void write(boolean value)
		throws IOException
	{
		writer.write(Boolean.toString(value));
		writer.flush();
	}
}