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1   /*
2    * Copyright 2009 University Corporation for Advanced Internet Development, Inc.
3    *
4    * Licensed under the Apache License, Version 2.0 (the "License");
5    * you may not use this file except in compliance with the License.
6    * You may obtain a copy of the License at
7    *
8    * http://www.apache.org/licenses/LICENSE-2.0
9    *
10   * Unless required by applicable law or agreed to in writing, software
11   * distributed under the License is distributed on an "AS IS" BASIS,
12   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13   * See the License for the specific language governing permissions and
14   * limitations under the License.
15   */
16  
17  package org.opensaml.ws.soap.common;
18  
19  import java.util.Set;
20  
21  import javax.xml.namespace.QName;
22  
23  import org.opensaml.ws.message.handler.Handler;
24  
25  /**
26   * Interface for {@link Handler}'s that are specific to SOAP message processing.
27   */
28  public interface SOAPHandler extends Handler {
29      
30      /**
31       * Get the set of SOAP header names that the handler
32       * indicates it understands.
33       * 
34       * @return unmodifiable set of understood header names, possibly empty
35       */
36      public Set<QName> understandsHeaders();
37  
38  }