/*

 * Copyright (c) 2003, 2013, 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

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 */

package javax.xml.bind;

/**

 * This event indicates that a problem was encountered while validating the

 * incoming XML data during an unmarshal operation, while performing

 * on-demand validation of the Java content tree, or while marshalling the

 * Java content tree back to XML data.

 *

 * @author <ul><li>Ryan Shoemaker, Sun Microsystems, Inc.</li><li>Kohsuke Kawaguchi, Sun Microsystems, Inc.</li><li>Joe Fialli, Sun Microsystems, Inc.</li></ul>

 * @see Validator

 * @see ValidationEventHandler

 * @since 1.6, JAXB 1.0

 */

public interface ValidationEvent {

    /**

     * Conditions that are not errors or fatal errors as defined by the

     * XML 1.0 recommendation

     */

    public static final int WARNING     = 0;

    /**

     * Conditions that correspond to the definition of "error" in section

     * 1.2 of the W3C XML 1.0 Recommendation

     */

    public static final int ERROR       = 1;

    /**

     * Conditions that correspond to the definition of "fatal error" in section

     * 1.2 of the W3C XML 1.0 Recommendation

     */

    public static final int FATAL_ERROR = 2;

    /**

     * Retrieve the severity code for this warning/error.

     *

     * <p>

     * Must be one of {@code ValidationError.WARNING},

     * {@code ValidationError.ERROR}, or {@code ValidationError.FATAL_ERROR}.

     *

     * @return the severity code for this warning/error

     */

    public int getSeverity();

    /**

     * Retrieve the text message for this warning/error.

     *

     * @return the text message for this warning/error or null if one wasn't set

     */

    public String getMessage();

    /**

     * Retrieve the linked exception for this warning/error.

     *

     * @return the linked exception for this warning/error or null if one

     *         wasn't set

     */

    public Throwable getLinkedException();

    /**

     * Retrieve the locator for this warning/error.

     *

     * @return the locator that indicates where the warning/error occurred

     */

    public ValidationEventLocator getLocator();

}