Examples of com.volantis.xml.expression.Expression.evaluate()

Class com.volantis.xml.expression.Expression

Examples of com.volantis.xml.expression.Expression.evaluate()

com.volantis.xml.expression.Expression.evaluate()
Evaluate the expression. @param context The context within which the expression is evaluated. @return The result of the expression. @throws ExpressionException An exception if the exception resulted in anerror.

     * @throws Exception if an error occurs
     */
    public void testBooleanStringArg() throws Exception {
        Expression exp = compileExpression("boolean(\"1\")");


        Value result = exp.evaluate(context);


        assertTrue("fn:boolean should result in a boolean value",
                   result instanceof BooleanValue);


        assertTrue("fn:boolean expression result should be true",

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                        new ImmutableExpandedName("", "myVar"),
                        seq);


        Expression exp = compileExpression("boolean($myVar)");


        Value result = exp.evaluate(context);


        assertTrue("fn:boolean should result in a boolean value",
                   result instanceof BooleanValue);


        assertTrue("fn:boolean expression result should be true",

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                    ExpressionContext expressionContext =
                            pipelineContext.getExpressionContext();


                    // Evaluate the expression and cast to a boolean.
                    boolean result = PipelineExpressionHelper.fnBoolean(
                            expression.evaluate(
                                    expressionContext).getSequence())
                            .asJavaBoolean();


                    if (!result) {
                        // The expression evaluated to false so ignore this

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     * @throws Exception if an error occurs
     */
    public void testBooleanStringInvalidString() throws Exception {
        try {
            Expression exp = compileExpression("boolean(\"hello\")");
            exp.evaluate(context);
            fail("boolean(\"hello\") should throw an exception");
        } catch (ExpressionException e) {
            // expected condition
        }
    }

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     * @throws Exception if an error occurs
     */
    public void testBooleanNumericArg() throws Exception {
        Expression exp = compileExpression("boolean(0.0)");


        Value result = exp.evaluate(context);


        assertTrue("fn:boolean should result in a boolean value",
                   result instanceof BooleanValue);


        assertFalse("fn:boolean expression result should be false",

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     * @throws Exception if an error occurs
     */
    public void testNumberNumericArg() throws Exception {
        Expression exp = compileExpression("number(0.0)");


        Value result = exp.evaluate(context);


        assertTrue("fn:number should result in a double value",
                   result instanceof DoubleValue);


        assertEquals("fn:number expression result should be 0.0",

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     * @throws Exception if an error occurs
     */
    public void testNumberStringArg() throws Exception {
        Expression exp = compileExpression("number('99.9')");


        Value result = exp.evaluate(context);


        assertTrue("fn:number should result in a double value",
                   result instanceof DoubleValue);


        assertEquals("fn:number expression result should be 99.9",

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     * @throws Exception if an error occurs
     */
    public void testNumberBooleanArg() throws Exception {
        Expression exp = compileExpression("number(true())");


        Value result = exp.evaluate(context);


        assertTrue("fn:number should result in a double value",
                   result instanceof DoubleValue);


        assertEquals("fn:number expression result should be 1.0",

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     * @throws Exception if an error occurs
     */
    public void testNumberInvalidArg() throws Exception {
        Expression exp = compileExpression("number('one')");


        Value result = exp.evaluate(context);


        assertTrue("fn:number should result in a Double value",
                   result instanceof DoubleValue);


        assertTrue("fn:number expression result should be NaN",

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     * @throws Exception if an error occurs
     */
    public void testConcatTwoStringArgs() throws Exception {
        Expression exp = compileExpression("concat('con', 'cat')");


        Value result = exp.evaluate(context);


        assertTrue("fn:concat should result in a String value",
                   result instanceof StringValue);


        assertEquals("fn:concat expression result should be concat",

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