Examples of org.w3c.dom.xpath.XPathEvaluator.evaluate()

org.w3c.dom.xpath.XPathEvaluator.evaluate()
Evaluates an XPath expression string and returns a result of the specified type if possible. @param expression The XPath expression string to be parsed andevaluated. @param contextNode The context is context node for theevaluation of this XPath expression. If the XPathEvaluator was obtained by casting the Document then this must be owned by the same document and must be a Document, Element, Attribute, Text, CDATASection, Comment, ProcessingInstruction, or XPathNamespace node. If the context node is a Text or a CDATASection, then the context is interpreted as the whole logical text node as seen by XPath, unless the node is empty in which case it may not serve as the XPath context. @param resolver The resolver permits translation ofprefixes within the XPath expression into appropriate namespace URIs . If this is specified as null, any namespace prefix within the expression will result in DOMException being thrown with the code NAMESPACE_ERR. @param type If a specific type is specified, then theresult will be returned as the corresponding type.For XPath 1.0 results, this must be one of the codes of the XPathResult interface. @param result The result specifies a specific resultobject which may be reused and returned by this method. If this is specified as nullor the implementation does not reuse the specified result, a new result object will be constructed and returned.For XPath 1.0 results, this object will be of type XPathResult. @return The result of the evaluation of the XPath expression.For XPath1.0 results, this object will be of type XPathResult. @exception XPathException INVALID_EXPRESSION_ERR: Raised if the expression is not legal according to the rules of the XPathEvaluatori
TYPE_ERR: Raised if the result cannot be converted to return the specified type. @exception DOMException NAMESPACE_ERR: Raised if the expression contains namespace prefixes which cannot be resolved by the specified XPathNSResolver.
WRONG_DOCUMENT_ERR: The Node is from a document that is not supported by this XPathEvaluator.
NOT_SUPPORTED_ERR: The Node is not a type permitted as an XPath context node or the request type is not permitted by this XPathEvaluator.

      // Create an XPath evaluator and pass in the document.
      XPathEvaluator evaluator = new XPathEvaluatorImpl(doc);
      XPathNSResolver resolver = evaluator.createNSResolver(doc);
      
      // Evaluate the xpath expression
      XPathResult result = (XPathResult)evaluator.evaluate(xpath, doc, resolver, XPathResult.UNORDERED_NODE_ITERATOR_TYPE, null);
      


      // Serialize the found nodes to System.out.
      System.out.println("<output>");

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      // Create an XPath evaluator and pass in the document.
      XPathEvaluator evaluator = new XPathEvaluatorImpl(doc);
      XPathNSResolver resolver = evaluator.createNSResolver(doc);
      
      // Evaluate the xpath expression
      XPathResult result = (XPathResult)evaluator.evaluate(xpath, doc, resolver, XPathResult.UNORDERED_NODE_ITERATOR_TYPE, null);
      


      // Serialize the found nodes to System.out.
      System.out.println("<output>");

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      // Create an XPath evaluator and pass in the document.
      XPathEvaluator evaluator = new XPathEvaluatorImpl(doc);
      XPathNSResolver resolver = evaluator.createNSResolver(doc);
      
      // Evaluate the xpath expression
      XPathResult result = (XPathResult)evaluator.evaluate(xpath, doc, resolver, XPathResult.UNORDERED_NODE_ITERATOR_TYPE, null);
      


      // Serialize the found nodes to System.out.
      System.out.println("<output>");

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      // Create an XPath evaluator and pass in the document.
      XPathEvaluator evaluator = new XPathEvaluatorImpl(doc);
      XPathNSResolver resolver = evaluator.createNSResolver(doc);
      
      // Evaluate the xpath expression
      XPathResult result = (XPathResult)evaluator.evaluate(xpath, doc, resolver, XPathResult.UNORDERED_NODE_ITERATOR_TYPE, null);
      


      // Serialize the found nodes to System.out.
      System.out.println("<output>");

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      // Create an XPath evaluator and pass in the document.
      XPathEvaluator evaluator = new XPathEvaluatorImpl(doc);
      XPathNSResolver resolver = evaluator.createNSResolver(doc);
      
      // Evaluate the xpath expression
      XPathResult result = (XPathResult)evaluator.evaluate(xpath, doc, resolver, XPathResult.UNORDERED_NODE_ITERATOR_TYPE, null);
      


      // Serialize the found nodes to System.out.
      System.out.println("<output>");

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