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package javax.xml.stream.events;

/**
 * This describes the interface to Characters events. 
 * All text events get reported as Characters events.
 * Content, CData and whitespace are all reported as
 * Characters events.  IgnorableWhitespace, in most cases,
 * will be set to false unless an element declaration of element
 * content is present for the current element.
 *
 * @version 1.0
 * @author Copyright (c) 2003 by BEA Systems. All Rights Reserved.
 * @since 1.6
 */
public interface Characters extends XMLEvent {
  /**
   * Get the character data of this event
   */
  public String getData();

  /**
   * Returns true if this set of Characters 
   * is all whitespace.  Whitespace inside a document
   * is reported as CHARACTERS.  This method allows
   * checking of CHARACTERS events to see if they
   * are composed of only whitespace characters
   */
  public boolean isWhiteSpace();

  /**
   * Returns true if this is a CData section.  If this
   * event is CData its event type will be CDATA
   *
   * If javax.xml.stream.isCoalescing is set to true CDATA Sections
   * that are surrounded by non CDATA characters will be reported
   * as a single Characters event. This method will return false
   * in this case.
   */
  public boolean isCData();

  /**
   * Return true if this is ignorableWhiteSpace.  If
   * this event is ignorableWhiteSpace its event type will
   * be SPACE.
   */
  public boolean isIgnorableWhiteSpace();

}