Examples of org.jaxen.BaseXPath.evaluate()

org.jaxen.BaseXPath.evaluate()
Evaluate this XPath against a given context.
The context of evaluation my be a document, an element, or a set of elements.

If the expression evaluates to a single primitive (String, Number or Boolean) type, it is returned directly. Otherwise, the returned value is a List (a node-set, in the terms of the specification) of values.

When using this method, one must be careful to test the class of the returned objects, and of each of the composite members if a List is returned. If the returned members are XML entities, they will be the actual Document, Element or Attribute objects as defined by the concrete XML object-model implementation, directly from the context document. This does not return copies of anything, but merely returns references to entities within the source document.
@param node The node, nodeset or Context object for evaluation. This value can be null. @return The result of evaluating the XPath expressionagainst the supplied context.

    public void testEvaluateWithMultiNodeAnswer() throws JaxenException {
        
        BaseXPath xpath = new DOMXPath("(/descendant-or-self::node())");
        
        doc.appendChild(doc.createElement("root"));
        List result = (List) xpath.evaluate(doc);
        assertEquals(2, result.size());
        
    }

View Full Code Here

  
    public void testStringLengthFunctionOperatesOnContextNode() 
      throws JaxenException {
        
        BaseXPath xpath = new DOMXPath("string-length()");
        Double result = (Double) xpath.evaluate( doc );
        assertEquals(0, result.intValue());
        
    }    


    public void testStringLengthFunctionCountsUnicodeCharactersNotJavaChars()

View Full Code Here


    public void testStringLengthFunctionCountsUnicodeCharactersNotJavaChars() 
      throws JaxenException {
   
        BaseXPath xpath = new DOMXPath("string-length('\uD834\uDD00')");
        Double result = (Double) xpath.evaluate( doc );
        assertEquals(1, result.intValue());
        
    }    


    public void testStringLengthFunctionWithMalformedString()

View Full Code Here

    public void testStringLengthFunctionWithMalformedString() 
      throws JaxenException {
   
        BaseXPath xpath = new DOMXPath("string-length('\uD834A\uDD00')");
        try {
            xpath.evaluate( doc );
            fail("Allowed Malformed string");
        }
        catch (FunctionCallException ex) {
            assertNotNull(ex.getMessage());
        }

View Full Code Here

    protected void assertValueOfXPath(String expected, Object context, String xpathStr) throws JaxenException
    {
        try
        {
            BaseXPath xpath = new BaseXPath(xpathStr, getNavigator());
            Object node = xpath.evaluate(getContext(context));
            String result = StringFunction.evaluate(node,
                    getNavigator());
            log(debug,
                    "  Select :: " + xpathStr);
            log(debug,

View Full Code Here


    public void testFloor() throws JaxenException {
        
        BaseXPath xpath = new DOMXPath("floor(1.5)");
        
        Object result = xpath.evaluate(doc);
        assertEquals(1, ((Double) result).doubleValue(), 0.0001);
        
    }    


    public void testNegativeFloor() throws JaxenException {

View Full Code Here


    public void testNegativeFloor() throws JaxenException {
        
        BaseXPath xpath = new DOMXPath("floor(-1.5)");
        
        Object result = xpath.evaluate(doc);
        assertEquals(-2, ((Double) result).doubleValue(), 0.0001);
        
    }    


    public void testNaNFloorIsNaN() throws JaxenException {

View Full Code Here

        
    }    


    public void testNaNFloorIsNaN() throws JaxenException {
        BaseXPath xpath = new DOMXPath("floor(1.0 div 0.0 - 2.0 div 0.0)");
        double result = ((Double) xpath.evaluate(doc)).doubleValue();
        assertTrue(Double.isNaN(result));
    }    


    public void testInfFloorIsInf() throws JaxenException {
        BaseXPath xpath = new DOMXPath("floor(1.0 div 0.0)");

View Full Code Here

        assertTrue(Double.isNaN(result));
    }    


    public void testInfFloorIsInf() throws JaxenException {
        BaseXPath xpath = new DOMXPath("floor(1.0 div 0.0)");
        double result = ((Double) xpath.evaluate(doc)).doubleValue();
        assertTrue(Double.isInfinite(result));
        assertTrue(result > 0);
    }    


    public void testNegativeInfFloorIsNegativeInf() throws JaxenException {

View Full Code Here

        assertTrue(result > 0);
    }    


    public void testNegativeInfFloorIsNegativeInf() throws JaxenException {
        BaseXPath xpath = new DOMXPath("floor(-1.0 div 0.0)");
        double result = ((Double) xpath.evaluate(doc)).doubleValue();
        assertTrue(Double.isInfinite(result));
        assertTrue(result < 0);
    }    


    public void testFloorFunctionRequiresAtLeastArgument()

View Full Code Here

0 1 2

TOP

All source code are property of their respective owners. Java is a trademark of Sun Microsystems, Inc and owned by ORACLE Inc. Contact coftware#gmail.com.