/*
 * Copyright (c) 2000 World Wide Web Consortium,
 * (Massachusetts Institute of Technology, Institut National de
 * Recherche en Informatique et en Automatique, Keio University). All
 * Rights Reserved. This program is distributed under the W3C's Software
 * Intellectual Property License. This program 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 W3C License http://www.w3.org/Consortium/Legal/ for more
 * details.
 */

package org.w3c.dom.events;

import org.w3c.dom.DOMException;

/**
 *  The <code>DocumentEvent</code> interface provides a mechanism by which the 
 * user can create an Event of a type supported by the implementation. It is 
 * expected that the <code>DocumentEvent</code> interface will be implemented 
 * on the same object which implements the <code>Document</code> interface in 
 * an implementation which supports the Event model. 
 * @since DOM Level 2
 */
public interface DocumentEvent {
    /**
     * 
     * @param eventType  The <code>eventType</code> parameter specifies the 
     *   type of <code>Event</code> interface to be created.  If the 
     *   <code>Event</code> interface specified is supported by the 
     *   implementation  this method will return a new <code>Event</code> of 
     *   the interface type requested.  If the  <code>Event</code> is to be 
     *   dispatched via the <code>dispatchEvent</code> method the  
     *   appropriate event init method must be called after creation in order 
     *   to initialize the <code>Event</code> 's values.  As an example, a 
     *   user wishing to synthesize some kind of  <code>UIEvent</code> would 
     *   call <code>createEvent</code> with the parameter "UIEvents".  The  
     *   <code>initUIEvent</code> method could then be called on the newly 
     *   created <code>UIEvent</code> to set the specific type of UIEvent to 
     *   be dispatched and set its context information. The 
     *   <code>createEvent</code> method is used in creating 
     *   <code>Event</code> s when it is either  inconvenient or unnecessary 
     *   for the user to create an <code>Event</code> themselves.  In cases 
     *   where the implementation provided <code>Event</code> is 
     *   insufficient, users may supply their own <code>Event</code> 
     *   implementations for use with the <code>dispatchEvent</code> method.
     * @return  The newly created <code>Event</code>
     * @exception DOMException
     *    NOT_SUPPORTED_ERR: Raised if the implementation does not support 
     *   the type of <code>Event</code> interface requested
     */
    public Event createEvent(String eventType)
                             throws DOMException;

}