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1   /*
2    * Copyright 2007 the original author or authors.
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.springframework.xml.xpath;
18  
19  import org.w3c.dom.DOMException;
20  import org.w3c.dom.Node;
21  
22  /**
23   * An interface used by [email protected] XPathOperations} implementations for processing [email protected] Node} objects on a per-node basis.
24   * Implementations of this interface perform the actual work of processing nodes, but don't need to worry about
25   * exception handling.
26   * <p/>
27   * Consider using a [email protected] NodeMapper} instead if you need to map exactly result object per node, assembling them in a
28   * List.
29   *
30   * @author Arjen Poutsma
31   * @see XPathOperations#evaluate(String,javax.xml.transform.Source,NodeCallbackHandler)
32   * @since 1.0.0
33   */
34  public interface NodeCallbackHandler {
35  
36      /**
37       * Processed a single node.
38       *
39       * @param node the node to map
40       * @throws DOMException in case of DOM errors
41       */
42      void processNode(Node node) throws DOMException;
43  
44  }