Examples of org.jaxen.XPath.selectSingleNode()

org.jaxen.XPath.selectSingleNode()
Select only the first node that is selectable by this XPath expression. If multiple nodes match, only one node will be returned. NOTE: In most cases, the selected node will be the first selectable node in document-order, as defined by the XML Canonicalization specification. The exception occurs when using XPath expressions involving the union operator (denoted with the pipe '|' character).
@param The node, nodeset or Context object for evaluation. This value can be null @return The node-set of all items selectedby this XPath expression. @see #selectNodes

    Map<String,String> namespaces,
    Map<QName,Function> functions,
    Map<QName,Object> variables) throws XPathException {
    try {
      XPath xpath = getXPath(path, namespaces, functions, variables);
      return xpath.selectSingleNode(base);
    } catch (JaxenException e) {
      throw new XPathException(e);
    }
  }

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            map.put("default", XmlConstants.POM_DEFAULT_NAMESPACE);


            XPath xpath = new Dom4jXPath("/default:project/default:dependencies");
            xpath.setNamespaceContext(new SimpleNamespaceContext(map));
            
            dependenciesNode = (DefaultElement)xpath.selectSingleNode(pomDocument);
            readDependenciesListFromXmlNode(dependencies, dependenciesNode);
        }
        catch (JaxenException e) {
            e.printStackTrace();
        }

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    public static void loadSettingsSection(final String xPathString, final Object parent, 
            final DeployerSettings deployerSettings) throws JaxenException {
        
        XPath xpath = new Dom4jXPath(xPathString);
        Node settings = (Node)xpath.selectSingleNode(parent);
        
        if (null != settings) {
            deployerSettings.useIndex = XmlUtils.getChildNodeBooleanValue(settings, 
                    XmlConstants.USE_INDEX, deployerSettings.useIndex);
        }

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                    prefix += "default:";
                }
                XPath xpath = new Dom4jXPath(prefix + childName);
                xpath.setNamespaceContext(new SimpleNamespaceContext(map));


                Node child = (Node) xpath.selectSingleNode(parent);
                if (null != child) {
                    if (null != child.getText()) {
                        result = child.getText().trim();
                    }
                }

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    @Override
    public Node evaluateAsNode(String expression, Source context) throws XPathException {
        try {
            XPath xpath = createXPath(expression);
            Element element = getRootElement(context);
            return (Node) xpath.selectSingleNode(element);
        }
        catch (JaxenException ex) {
            throw new XPathException("Could not evaluate XPath expression [" + expression + "]", ex);
        }
        catch (TransformerException ex) {

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    @Override
    public <T> T evaluateAsObject(String expression, Source context, NodeMapper<T> nodeMapper) throws XPathException {
        try {
            XPath xpath = createXPath(expression);
            Element element = getRootElement(context);
            Node node = (Node) xpath.selectSingleNode(element);
            if (node != null) {
                try {
                    return nodeMapper.mapNode(node, 0);
                }
                catch (DOMException ex) {

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                XPath xpath = new JDOMXPath("//" +
                                            NAMESPACE_PREFIX + ":" +
                                            MSS_CONFIG_MESSAGESTORE_ELEMENT);
                xpath.setNamespaceContext(nsContext);


                Element element = (Element) xpath.selectSingleNode(root);


                // Location
                config.setLocation(element.getAttributeValue(
                        MSS_CONFIG_LOCATION_ATTRIBUTE));

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                xpath = new JDOMXPath("//" +
                                      NAMESPACE_PREFIX + ":" +
                                      MSS_CONFIG_ENVIRONMENT_ELEMENT);
                xpath.setNamespaceContext(nsContext);


                element = (Element) xpath.selectSingleNode(root);
                config.setLog4jConfigurationFile(
                        element.getAttributeValue(MSS_CONFIG_LOG4J_ATTRIBUTE));
            } else {
                handleConfigError(null);
            }

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    Element returnResult = ((Document)domResult.getNode())
        .getDocumentElement();


    XPath xpath = new DOMXPath("/BLUB/root/element1");
    Element element1
        = (Element)xpath.selectSingleNode(returnResult);
    String value1 = element1.getAttribute("attr1");
    // check testXSLT.xml for the expected result
    assertTrue(value1.equals("42"));


    xpath = new DOMXPath("/BLUB/root/element2");

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    // check testXSLT.xml for the expected result
    assertTrue(value1.equals("42"));


    xpath = new DOMXPath("/BLUB/root/element2");
    Element element2
        = (Element)xpath.selectSingleNode(returnResult);
    String value2 = element2.getAttribute("attr2");
    // check testXSLT.xml for the expected result
    assertTrue(value2.equals("66"));


      }

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