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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 *
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 * 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,
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package javax.xml.ws.handler.soap;

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

/** The {@code SOAPHandler} class extends {@code 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.
 *
 * @param <T> message context
 *  @since 1.6, JAX-WS 2.0
**/
public interface SOAPHandler<T extends SOAPMessageContext>
    extends Handler<T> {

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