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 testConcatFiveStringArgs() throws Exception {
        Expression exp = compileExpression("concat('ex','pres','s','ion','s')");


        Value result = exp.evaluate(context);


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


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

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                        {factory.createStringValue("one")}));


        Expression exp = compileExpression(
                "concat(true(), 25.9, $emptySeq, $myVar, $singleSeq)");


        Value result = exp.evaluate(context);


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


        assertEquals("fn:concat expression result should be 'true25.91one'",

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     */
    public void testConcatOneArg() throws Exception {
        Expression exp = compileExpression("concat('con')");


        try {
            exp.evaluate(context);
            fail("calling concat with a single argument should result " +
                 "in an ExpressionException");
        } catch (ExpressionException e) {
            // expected condition
        }

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        Expression exp = compileExpression("concat('con', $seq)");


        try {
            exp.evaluate(context);
            fail("calling concat with a single argument should result " +
                 "in a JXPathException");
        } catch (ExpressionException e) {
            // expected condition
        }

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     */
    public void testSimpleAndOperator() throws Exception {


        Expression exp = compileExpression("2 = 2 and 3 = 3");


        Value result = exp.evaluate(context);


        assertTrue("AND expression should result in a boolean value",
                   result instanceof BooleanValue);


        assertTrue("AND expression result should be true",

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                one);




        Expression exp = compileExpression("$myVar <= 1 and 4 > $myVar");


        Value result = exp.evaluate(context);


        assertTrue("AND expression should result in a boolean value",
                   result instanceof BooleanValue);


        assertTrue("AND expression result should be true",

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     */
    public void testSimpleOrOperator() throws Exception {


        Expression exp = compileExpression("2 = 3 or 3 = 3");


        Value result = exp.evaluate(context);


        assertTrue("OR expression should result in a boolean value",
                   result instanceof BooleanValue);


        assertTrue("OR expression result should be true",

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                one);




        Expression exp = compileExpression("$myVar <= 1 or 0 > $myVar");


        Value result = exp.evaluate(context);


        assertTrue("OR expression should result in a boolean value",
                   result instanceof BooleanValue);


        assertTrue("OR expression result should be true",

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                result);


        Expression exp = compileExpression("$myVar != \"" +
                                           result.stringValue().
                                           asJavaString() + "\"");
        Value result = exp.evaluate(context);


        assertTrue("Inequality expression should result in a boolean value",
                   result instanceof BooleanValue);
        assertFalse("Inequality expression result should be false",
                    ((BooleanValue) result).asJavaBoolean());

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                });


        Expression exp = compileExpression("function:test(((\"a\"),\"b\"), " 
                          + "(\"c\",\"d\"), \"e\")");


        Value eval = exp.evaluate(context);
        
        assertTrue("Expression should result in a string value",
                   eval instanceof StringValue);


        assertEquals("Expression result not as",

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