PrefixResolver


1   /* 
2    * Copyright 2002-2004 The Apache Software Foundation
3    * Licensed  under the  Apache License,  Version 2.0  (the "License");
4    * you may not use  this file  except in  compliance with the License.
5    * You may obtain a copy of the License at 
6    * 
7    *   http://www.apache.org/licenses/LICENSE-2.0
8    * 
9    * Unless required by applicable law or agreed to in writing, software
10   * distributed  under the  License is distributed on an "AS IS" BASIS,
11   * WITHOUT  WARRANTIES OR CONDITIONS  OF ANY KIND, either  express  or
12   * implied.
13   * 
14   * See the License for the specific language governing permissions and
15   * limitations under the License.
16   */
17  package org.apache.excalibur.xml.xpath;
18  
19  /**
20   * Implement this interface in case you want to provide your
21   * own prefix resolving when evaluating XPath expressions.
22   *
23   * @author <a HREF="mailto:dev@avalon.apache.org">Avalon Development Team</a>
24   */
25  public interface PrefixResolver
26  {
27      /**
28       * Given a namespace prefix, return the corresponding namespace URI,
29       * or null if the namespace prefix is not known.
30       */
31      public String   prefixToNamespace(String   prefix);
32  }
33

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