/*
 * Copyright (c) 2005, Oracle and/or its affiliates. All rights reserved.
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 *
 * This code is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License version 2 only, as
 * published by the Free Software Foundation.  Oracle designates this
 * particular file as subject to the "Classpath" exception as provided
 * by Oracle in the LICENSE file that accompanied this code.
 *
 * This code 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 General Public License
 * version 2 for more details (a copy is included in the LICENSE file that
 * accompanied this code).
 *
 * You should have received a copy of the GNU General Public License version
 * 2 along with this work; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
 *
 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
 * or visit www.oracle.com if you need additional information or have any
 * questions.
 */
package org.relaxng.datatype;

/**
 * Signals Datatype related exceptions.
 * 
 * @author <a href="mailto:jjc@jclark.com">James Clark</a>
 * @author <a href="mailto:kohsuke.kawaguchi@sun.com">Kohsuke KAWAGUCHI</a>
 */
public class DatatypeException extends Exception {
	
	public DatatypeException( int index, String msg ) {
		super(msg);
		this.index = index;
	}
	public DatatypeException( String msg ) {
		this(UNKNOWN,msg);
	}
	/**
	 * A constructor for those datatype libraries which don't support any
	 * diagnostic information at all.
	 */
	public DatatypeException() {
		this(UNKNOWN,null);
	}
	
	
	private final int index;
	
	public static final int UNKNOWN = -1;

	/**
	 * Gets the index of the content where the error occured.
	 * UNKNOWN can be returned to indicate that no index information
	 * is available.
	 */
	public int getIndex() {
		return index;
	}
}