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Warning: This is a facade provided for use by user code, not for implementation in user code.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

            throws ExtendedSAXException {
        ExpressionFactory factory = expressionContext.getFactory();
        ExpressionParser parser = factory.createExpressionParser();
        Sequence sequence;
        try {
            Expression expression = parser.parse(expressionAsString);
            Value value = expression.evaluate(expressionContext);
            sequence = value.getSequence();
        } catch (ExpressionException e) {
            throw new ExtendedSAXException(e);
        }
        return sequence;

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        }


        ExpressionFactory expressionFactory = context.getFactory();
        ExpressionParser parser = expressionFactory.createExpressionParser();


        Expression expression = parser.parse(arguments[0].stringValue().asJavaString());
        return expression.evaluate(context);
    }

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    }


    private RuntimePolicyReference evaluateRuntimePolicyExpression(
            RuntimePolicyReferenceExpression policyExpression) {
        Expression expression = policyExpression.getExpression();
        RuntimeProject project = (RuntimeProject) policyExpression.getProject();
        MarinerURL baseURL = policyExpression.getBaseURL();
        String brandName = policyExpression.getBrandName();


        RuntimePolicyReference reference = null;
        try {
            Value value = expression.evaluate(expressionContext);
            if (value instanceof RepositoryObjectIdentityValue) {
                RepositoryObjectIdentityValue identityValue =
                        (RepositoryObjectIdentityValue) value;


                PolicyIdentity identity = identityValue.asPolicyIdentity();

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        accessorMock.expects.getDependentPolicyValue(policy)
                .returns(policyValue);


        // invoke the function
        Expression expression = parser.parse(getFunctionQName() +
                                             "('" + policy + "')");


        // evalute the expression
        Value value = expression.evaluate(expressionContext);


        // Value returned should be a StringValue
        assertTrue("return value should be a StringValue instance",
                   value instanceof StringValue);

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        // add a policy/policy value pair to the request
        String charateristic = "null";
        serviceDefMock.expects.getCharacteristic(charateristic).returns(null);


        // invoke the function
        Expression expression = parser.parse(getFunctionQName() +
                                             "('" + charateristic + "')");


        // evalute the expression
        Value result = expression.evaluate(expressionContext);


        // Value returned should be the EmptySequence
        assertTrue("return value should be a Sequence instance",
                   result instanceof Sequence);

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                                              value.createImmutable();


        serviceDefMock.expects.getCharacteristic(charateristic).returns(stringVal);


        // invoke the function
        Expression expression = parser.parse(getFunctionQName() +
                                             "('" + charateristic + "')");


        // evalute the expression
        Value result = expression.evaluate(expressionContext);


        // Value returned should be a StringValue
        assertTrue("return value should be a StringValue instance",
                   result instanceof StringValue);

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     * Test the getPolicyValue() function with a policy that has NO value
     * @throws Exception if an error occurs
     */
    public void testInvokeWhenPolicyDoesNotExist() throws Exception {
        // invoke the function
        Expression expression = parser.parse(getFunctionQName() + "('Test')");


        accessorMock.expects.getDependentPolicyValue("Test").returns(null);


        // evalute the expression
        Value value = expression.evaluate(expressionContext);


        // ensure the empty sequence has been returned
        assertSame("Empty sequence should be returned if policy doesn't exist",
                   Sequence.EMPTY,
                   value);

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        accessorMock.expects.getDependentPolicyValue(policy)
                .returns(policyValue);


        // invoke the function
        Expression expression = parser.parse(getFunctionQName() +
                                             "('" + policy + "')");


        // evalute the expression
        Value value = expression.evaluate(expressionContext);


        // ensure a sequence is returned
        assertTrue("return value should be a Sequence instance",
                   value instanceof Sequence);

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                                              value.createImmutable();


        serviceDefMock.expects.getCharacteristic(charateristic).returns(boolVal);


        // invoke the function
        Expression expression = parser.parse(getFunctionQName() +
                                             "('" + charateristic + "')");


        // evalute the expression
        Value result = expression.evaluate(expressionContext);


        // Value returned should be a StringValue
        assertTrue("return value should be a BooleanValue instance",
                   result instanceof BooleanValue);

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                                              value.createImmutable();


        serviceDefMock.expects.getCharacteristic(charateristic).returns(numVal);


        // invoke the function
        Expression expression = parser.parse(getFunctionQName() +
                                             "('" + charateristic + "')");


        // evalute the expression
        Value result = expression.evaluate(expressionContext);


        // Value returned should be a StringValue
        assertTrue("return value should be a DoubleValue instance",
                   result instanceof DoubleValue);

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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

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