Examples of com.volantis.xml.expression.Expression

com.volantis.xml.expression.Expression
A parsed expression.
Warning: This is a facade provided for use by user code, not for implementation in user code. User implementations of this interface are highly likely to be incompatible with future releases of the product at both binary and source levels.

Implementations of this interface must be thread safe and must not maintain any evaluation specific state as they may be evaluated simultaneously by multiple threads.

Expressions must have no context specific information in them. Where it is necessary to refer to named items the names must be stored as QNames which are expanded at evaluation time. This means that a given string will always result in the same Expression expression no matter where it is used.
@volantis-api-include-in PublicAPI @volantis-api-include-in ProfessionalServicesAPI @volantis-api-include-in InternalAPI

                result);
        context.getCurrentScope().declareVariable(
                new ImmutableExpandedName("", "mySequence"),
                factory.createSequence(items));


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


        try {
            exp.evaluate(context);


            fail("Should have had an exception thrown");
        } catch (ExpressionException e) {
            // Expected condition
            System.out.println(e);

View Full Code Here

                factory.createSequence(left));
        context.getCurrentScope().declareVariable(
                new ImmutableExpandedName("", "right"),
                factory.createSequence(right));


        Expression exp = compileExpression("$left = $right");
        Value result = exp.evaluate(context);


        assertTrue("Sequence comparison failed",
                   ((BooleanValue) result).asJavaBoolean());
    }

View Full Code Here

                factory.createSequence(left));
        context.getCurrentScope().declareVariable(
                new ImmutableExpandedName("", "right"),
                factory.createSequence(right));


        Expression exp = compileExpression("$left != $right");
        Value result = exp.evaluate(context);


        // the sequences are not equal as the first item in both
        // sequences are not equal. Note these same 2 sequences
        // are both equal and not equal.
        assertTrue("Sequence comparison failed",

View Full Code Here

    public void testEqualityEvaluate() throws Exception {
        context.getCurrentScope().declareVariable(
                new ImmutableExpandedName("", "myVar"),
                result);


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


        assertTrue("Equality expression should result in a boolean value",
                   result instanceof BooleanValue);
        assertTrue("Equality expression result should be true",
                   ((BooleanValue) result).asJavaBoolean());

View Full Code Here

     */
    private void doTestOperatorExpression(String operator,
                                          String expression,
                                          boolean expected) throws Exception {
        // compile and evalute the expression
        Expression exp = compileExpression(expression);
        Value result = exp.evaluate(context);


        // check the result type
        assertTrue(operator + " expression should result in a boolean value",
                   result instanceof BooleanValue);

View Full Code Here


        context.getCurrentScope().declareVariable(
                new ImmutableExpandedName("", "myVar"),
                one);


        Expression exp = compileExpression("not(3 < $myVar)");


        Value result = exp.evaluate(context);


        assertTrue("fn:not expression should result in a boolean value",
                   result instanceof BooleanValue);


        assertTrue("fn:not expression result should be true",

View Full Code Here

     * Test for the not function in expressions
     * @throws Exception if an error occurs
     */
    public void testNotWithTrue() throws Exception {


        Expression exp = compileExpression("not(true())");


        Value result = exp.evaluate(context);


        assertTrue("fn:not expression should result in a boolean value",
                   result instanceof BooleanValue);


        assertFalse("fn:not expression result should be false",

View Full Code Here

    /**
     * Test the boolean function with a String value argument.
     * @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",

View Full Code Here

        Sequence seq = factory.createDoubleValue(1.0).getSequence();
        context.getCurrentScope().declareVariable(
                        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",

View Full Code Here

            // as we may need to remove the attribute.
            index = attributes.getIndex(exprAttributeURI, "expr");
            if (index != -1) {
                String value = attributes.getValue(index);
                try {
                    Expression expression = parser.parse(value);


                    // obtain the ExpressionContext from the PipelineContext
                    // the ExpressionContext is needed in order to evaluate the
                    // expression parsed
                    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

View Full Code Here

0 1 2 3 4 5 6 7 8

TOP

Related Classes of com.volantis.xml.expression.Expression

com.volantis.mcs.expression.functions.device.DeviceRelationshipFunctionTestAbstract

com.volantis.mcs.expression.functions.device.GetPolicyValueFunctionTestCase

com.volantis.mcs.expression.functions.layout.GetIteratedFormatInstanceFunctionTestCase

com.volantis.mcs.expression.functions.request.MultiValueFunctionTestAbstract

com.volantis.mcs.expression.functions.request.RequestFunctionTestAbstract

com.volantis.mcs.expression.functions.request.SingleValueFunctionTestAbstract

com.volantis.mcs.expression.functions.service.GetCharacteristicFunctionTestCase

com.volantis.mcs.expression.MCSExpressionHelper

com.volantis.mcs.papi.impl.AbstractExprElementImpl

com.volantis.mcs.runtime.FormatReferenceParser

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.