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package com.sun.xml.internal.ws.api.handler;

import javax.xml.ws.handler.Handler;
import javax.xml.namespace.QName;
import java.util.Set;


The MessageHandler class extends Handler
to provide typesafety for the message context parameter and add a method
to obtain access to the headers that may be processed by the handler.
Its provides similar functionality as a SOAPHandler but provides RI's
Message in the MessageContext.
Author:
Rama Pulavarthi
Since:
JAX-WS 2.1.3/**
 * The <code>MessageHandler</code> class extends <code>Handler</code>
 * to provide typesafety for the message context parameter and add a method
 * to obtain access to the headers that may be processed by the handler.
 * Its provides similar functionality as a SOAPHandler but provides RI's
 * Message in the MessageContext.
 *
 * @author Rama Pulavarthi
 * @since JAX-WS 2.1.3
 */
public interface MessageHandler<C extends MessageHandlerContext> extends Handler<C> {


   
Gets the header blocks that can be processed by this Handler
 instance.
 @return Set of QNames of header blocks processed by this
          handler instance. QName is the qualified
          name of the outermost element of the Header block.
/** Gets the header blocks that can be processed by this Handler
   *  instance.
   *
   *  @return Set of <code>QNames</code> of header blocks processed by this
   *           handler instance. <code>QName</code> is the qualified
   *           name of the outermost element of the Header block.
  **/
  Set<QName> getHeaders();

}