Examples of org.dom4j.XPath.selectSingleNode()

org.dom4j.XPath.selectSingleNode()

selectSingleNode evaluates this XPath expression on the given {@link Node}or {@link List}of {@link Node}s and returns the result as a single Node instance.
@param context is either a node or a list of nodes on which to evalute theXPath @return a single matching Node instance

      Element item = (Element) iter.next();
      String identifierref = item.attributeValue("identifierref");
      if (identifierref == null) continue;
      XPath resourceXPath = rootElement.createXPath("//ns:resource[@identifier='" + identifierref + "']");
      resourceXPath.setNamespaceURIs(nsuris);
      Element elResource = (Element)resourceXPath.selectSingleNode(elResources);
      if (elResource == null) throw new AddingResourceException("resource.no.matching.resource");
      if (elResource.attribute("scormtype") != null) return false;
      if (elResource.attribute("scormType") != null) return false;
      if (elResource.attribute("SCORMTYPE") != null) return false;
      if (elResource.attributeValue("href") != null) return true; // success.

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        XPath xpath = DocumentHelper.createXPath("/xhtml:html/xhtml:body/xhtml:p");
        Map<String, String> namespaceUris = new HashMap<String, String>();
        namespaceUris.put("xhtml", "http://www.w3.org/1999/xhtml");
        xpath.setNamespaceURIs(namespaceUris);
        
        Node paragraphNode = xpath.selectSingleNode(doc);
        Assert.assertNotNull(paragraphNode);
        Assert.assertEquals("this is a test", paragraphNode.getText());
    }

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    public Element getElement( String xpathExpr )
        throws XMLException
    {
        XPath xpath = createXPath( xpathExpr );
        Object evaluated = xpath.selectSingleNode( document );


        if ( evaluated == null )
        {
            return null;
        }

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    public boolean hasElement( String xpathExpr )
        throws XMLException
    {
        XPath xpath = createXPath( xpathExpr );
        Object evaluated = xpath.selectSingleNode( document );


        if ( evaluated == null )
        {
            return false;
        }

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    public String getElementText( Node context, String xpathExpr )
        throws XMLException
    {
        XPath xpath = createXPath( xpathExpr );
        Object evaluated = xpath.selectSingleNode( context );


        if ( evaluated == null )
        {
            return null;
        }

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    public String getElementText( String xpathExpr )
        throws XMLException
    {
        XPath xpath = createXPath( xpathExpr );
        Object evaluated = xpath.selectSingleNode( document );


        if ( evaluated == null )
        {
            return null;
        }

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  private int[] extractBoxConstraint(Element root) {
    int[] result = new int[4];
    String nodeName = currentToken.getNode().getName();
    XPath xPath = new DefaultXPath("//node[@name='" + nodeName + "']");
    Element node = (Element) xPath.selectSingleNode(root);
    result[0] = Integer.valueOf(node.attribute("x").getValue()).intValue();
    result[1] = Integer.valueOf(node.attribute("y").getValue()).intValue();
    result[2] = Integer.valueOf(node.attribute("width").getValue()).intValue();
    result[3] = Integer.valueOf(node.attribute("height").getValue()).intValue();
    return result;

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  private int[] extractBoxConstraint(Element root, Token token) {
      int[] result = new int[4];
      String nodeName = token.getNode().getName();
      XPath xPath = new DefaultXPath("//node[@name='" + nodeName + "']");
      Element node = (Element) xPath.selectSingleNode(root);
      result[0] = Integer.valueOf(node.attribute("x").getValue()).intValue();
      result[1] = Integer.valueOf(node.attribute("y").getValue()).intValue();
      result[2] = Integer.valueOf(node.attribute("width").getValue()).intValue();
      result[3] = Integer.valueOf(node.attribute("height").getValue()).intValue();
      return result;

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    public boolean hasElement( String xpathExpr )
        throws XMLException
    {
        XPath xpath = createXPath( xpathExpr );
        Object evaluated = xpath.selectSingleNode( document );


        if ( evaluated == null )
        {
            return false;
        }

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    public String getElementText( Node context, String xpathExpr )
        throws XMLException
    {
        XPath xpath = createXPath( xpathExpr );
        Object evaluated = xpath.selectSingleNode( context );


        if ( evaluated == null )
        {
            return null;
        }

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