Examples of javax.xml.xpath.XPath.compile()

javax.xml.xpath.XPath.compile()

Compile an XPath expression for later evaluation.

If expression contains any {@link XPathFunction}s, they must be available via the {@link XPathFunctionResolver}. An {@link XPathExpressionException} will be thrown if the XPathFunctioncannot be resovled with the XPathFunctionResolver.

If expression is null, a NullPointerException is thrown.
@param expression The XPath expression. @return Compiled XPath expression. @throws XPathExpressionException If expression cannot be compiled. @throws NullPointerException If expression is null.

        XPathFunctionResolver parentResolver = getFunctionResolver();
        if (parentResolver == null) {
            parentResolver = xPath.getXPathFunctionResolver();
        }
        xPath.setXPathFunctionResolver(createDefaultFunctionResolver(parentResolver));
        return xPath.compile(text);
    }


    protected synchronized XPathExpression createTraceNamespaceExpression() throws XPathFactoryConfigurationException, XPathExpressionException {
        // XPathFactory is not thread safe
        XPath xPath = getXPathFactory().newXPath();

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    }


    protected synchronized XPathExpression createTraceNamespaceExpression() throws XPathFactoryConfigurationException, XPathExpressionException {
        // XPathFactory is not thread safe
        XPath xPath = getXPathFactory().newXPath();
        return xPath.compile(OBTAIN_ALL_NS_XPATH);
    }


    /**
     * Populate a number of standard prefixes if they are not already there
     */

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                xpathObject.setXPathFunctionResolver(functionResolver);
            }
            if (namespaceContext != null) {
                xpathObject.setNamespaceContext(namespaceContext);
            }
            xPathExpression = xpathObject.compile(xpath);
        }
    }


    /**
     * Before evaluating the xpath expression, it will be compiled by calling

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        XPathFunctionResolver parentResolver = getFunctionResolver();
        if (parentResolver == null) {
            parentResolver = xPath.getXPathFunctionResolver();
        }
        xPath.setXPathFunctionResolver(createDefaultFunctionResolver(parentResolver));
        return xPath.compile(text);
    }


    protected synchronized XPathExpression createTraceNamespaceExpression() throws XPathFactoryConfigurationException, XPathExpressionException {
        // XPathFactory is not thread safe
        XPath xPath = getXPathFactory().newXPath();

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    }


    protected synchronized XPathExpression createTraceNamespaceExpression() throws XPathFactoryConfigurationException, XPathExpressionException {
        // XPathFactory is not thread safe
        XPath xPath = getXPathFactory().newXPath();
        return xPath.compile(OBTAIN_ALL_NS_XPATH);
    }


    /**
     * Populate a number of standard prefixes if they are not already there
     */

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      Document doc = dBuilder.parse(new File(projectFolder, ".project"));
      doc.getDocumentElement().normalize();
      
      XPathFactory xFactory = XPathFactory.newInstance();
      XPath xpath = xFactory.newXPath();
      XPathExpression expr = xpath.compile("/projectDescription/name/text()");
      
      return (String) expr.evaluate(doc, XPathConstants.STRING);
      
    } catch (Exception e) {
      throw new RuntimeException(e);

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      XPathFactory factory = XPathFactory.newInstance();
      XPath xpath = factory.newXPath();


      xpath.setNamespaceContext(new OlefNamespaceContext());


      XPathExpression expr = xpath.compile(xpathExpression);
      Object obj = expr.evaluate(doc, returnType);
      result = obj;
    } catch (XPathExpressionException e) {
      e.printStackTrace();
    }

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      XPathFactory factory = XPathFactory.newInstance();
      XPath xpath = factory.newXPath();


      xpath.setNamespaceContext(new MyNamespaceContext());


      XPathExpression expr = xpath.compile(xpathExpression);
      Object obj = expr.evaluate(doc, returnType);
      result = obj;
    } catch (XPathExpressionException e) {
      e.printStackTrace();
    }

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                    public Iterator<String> getPrefixes(String namespaceURI) {
                        return null;
                    }
                }
        );
        return xPath.compile(expression);
    }


    class CustomWSS4JHandler extends WSHandler {


        private final org.slf4j.Logger log =

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   * @throws XPathExpressionException
   */
  public static NodeIterator queryXPath(Node root, String query) throws XPathExpressionException {
    if (root == null || query == null) return new NodeIterator(null);
    XPath xpath = XPathFactory.newInstance().newXPath();
    XPathExpression expr = xpath.compile(query);
    NodeList result = (NodeList)expr.evaluate(root, XPathConstants.NODESET);
    return new NodeIterator(result);
  }


  /**

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