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/* XMLEvent.java --

   Copyright (C) 2005,2006  Free Software Foundation, Inc.

This file is part of GNU Classpath.

GNU Classpath is free software; you can redistribute it and/or modify

it under the terms of the GNU General Public License as published by

the Free Software Foundation; either version 2, or (at your option)

any later version.

GNU Classpath 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 for more details.

You should have received a copy of the GNU General Public License

along with GNU Classpath; see the file COPYING.  If not, write to the

Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA

02110-1301 USA.

Linking this library statically or dynamically with other modules is

making a combined work based on this library.  Thus, the terms and

conditions of the GNU General Public License cover the whole

combination.

As a special exception, the copyright holders of this library give you

permission to link this library with independent modules to produce an

executable, regardless of the license terms of these independent

modules, and to copy and distribute the resulting executable under

terms of your choice, provided that you also meet, for each linked

independent module, the terms and conditions of the license of that

module.  An independent module is a module which is not derived from

or based on this library.  If you modify this library, you may extend

this exception to your version of the library, but you are not

obligated to do so.  If you do not wish to do so, delete this

exception statement from your version. */

package javax.xml.stream.events;

import java.io.Writer;

import javax.xml.namespace.QName;

import javax.xml.stream.Location;

import javax.xml.stream.XMLStreamConstants;

import javax.xml.stream.XMLStreamException;

/**

 * An XML stream event.

 */

public interface XMLEvent

  extends XMLStreamConstants

{

  /**

   * Returns the type of this event.

   */

  int getEventType();

  /**

   * Returns the location of this event.

   */

  Location getLocation();

  /**

   * Indicates whether this event is a start-element event.

   */

  boolean isStartElement();

  /**

   * Indicates whether this event is an attribute event.

   */

  boolean isAttribute();

  /**

   * Indicates whether this event is a namespace declaration event.

   */

  boolean isNamespace();

  /**

   * Indicates whether this event is an end-element event.

   */

  boolean isEndElement();

  /**

   * Indicates whether this event is an entity reference event.

   */

  boolean isEntityReference();

  /**

   * Indicates whether this event is a processing instruction event.

   */

  boolean isProcessingInstruction();

  /**

   * Indicates whether this event is a text event.

   */

  boolean isCharacters();

  /**

   * Indicates whether this event is a start-document event.

   */

  boolean isStartDocument();

  /**

   * Indicates whether this event is an end-document event.

   */

  boolean isEndDocument();

  /**

   * Returns this event as a start-element event.

   */

  StartElement asStartElement();

  /**

   * Returns this event as an end-element event.

   */

  EndElement asEndElement();

  /**

   * Returns this event as a text event.

   */

  Characters asCharacters();

  /**

   * Returns schema-related type information about this event, or null if

   * not available.

   */

  QName getSchemaType();

  /**

   * Writes this event to the specified writer.

   */

  void writeAsEncodedUnicode(Writer writer)

    throws XMLStreamException;

}