Package org.jfree.report.expressions

Examples of org.jfree.report.expressions.FormulaExpression


    protected boolean isValueChanged()
    {
        try
        {
            final FormattedTextElement element = (FormattedTextElement) getNode();
            final FormulaExpression formulaExpression = element.getValueExpression();
            final Formula formula = formulaExpression.getCompiledFormula();
            final LValue lValue = formula.getRootReference();
            return isReferenceChanged(lValue);
        }
        catch (final ParseException e)
        {
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            final FlowController flowController)
            throws DataSourceException
    {
        // here it is relatively easy. We have to evaluate the expression, convert
        // the result into a string, and print that string.
        final FormulaExpression formulaExpression = element.getValueExpression();
        final Object result = LayoutControllerUtil.evaluateExpression(flowController, element, formulaExpression);
        if (result == null)
        {
            // ignore it. Ignoring it is much better than printing 'null'.
            // Log.debug("Formula '" + formulaExpression.getFormula() + "' evaluated to null.");
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            function.setFormula(formula);
            this.expression = function;
        }
        else
        {
            final FormulaExpression expression = new FormulaExpression();
            expression.setFormula(formula);
            this.expression = expression;
        }

        expression.setName(name);
        expression.setDeepTraversing(OfficeToken.TRUE.equals(deepTraversing));
        final String preEvaluated = attrs.getValue(OfficeNamespaces.OOREPORT_NS, "pre-evaluated");
        expression.setPrecompute(OfficeToken.TRUE.equals(preEvaluated));
    }
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//        final String preserveIRI = attrs.getValue(OfficeNamespaces.OOREPORT_NS, OfficeToken.PRESERVE_IRI);
        if (formula != null && formula.length() != 0)
        {
            // now, the evaulated content ends up in the 'content' attribute of the
            // element.
            final FormulaExpression valueExpression = new FormulaExpression();
            valueExpression.setFormula(formula);
            contentElement.setFormula(valueExpression);
        }

        contentElement.setNamespace(OfficeNamespaces.FORM_NS);
        contentElement.setType(OfficeToken.IMAGE);
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        final AttributeMap variableSection = new AttributeMap();
        variableSection.setAttribute(JFreeReportInfo.REPORT_NAMESPACE, Element.NAMESPACE_ATTRIBUTE, OfficeNamespaces.TEXT_NS);
        variableSection.setAttribute(JFreeReportInfo.REPORT_NAMESPACE, Element.TYPE_ATTRIBUTE, "variable-set");
        variableSection.setAttribute(OfficeNamespaces.TEXT_NS, "display", "none");

        final FormulaExpression valueExpression = variable.getValueExpression();
        final Object value = LayoutControllerUtil.evaluateExpression(getFlowController(), variable, valueExpression);
        String formula = FormatValueUtility.applyValueForVariable(value, variableSection);
        if ( formula == null )
        {
            formula = "" + value;
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        super.startParsing(attrs);

        final String groupExpr = attrs.getValue(OfficeNamespaces.OOREPORT_NS, "group-expression");
        if (groupExpr != null)
        {
            final FormulaExpression function = new FormulaExpression();
            function.setFormula(groupExpr);
            groupInstanceSection.setGroupingExpression(function);
        }
    }
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        super.startParsing(attrs);

        final String formula = attrs.getValue(OfficeNamespaces.OOREPORT_NS, "formula");
        if (formula != null)
        {
            final FormulaExpression valueExpression = new FormulaExpression();
            valueExpression.setFormula(formula);
            element.setValueExpression(valueExpression);
        }

    // * Print-Repeated-Values
    // * Print-In-First-New-Section
 
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                attrs.getValue(OfficeNamespaces.OOREPORT_NS, OfficeToken.STYLE_NAME);
        if (stylename == null)
        {
            throw new ParseException("Required attribute 'style-name' is missing.", getLocator());
        }
        final FormulaExpression valueExpression = new FormulaExpression();
        valueExpression.setFormula(formula);

        final String enabledText = attrs.getValue(OfficeNamespaces.OOREPORT_NS, "enabled");
        final boolean enabled = (enabledText == null || OfficeToken.TRUE.equals(enabledText));
        final FormatCondition formatCondition =
                new FormatCondition(valueExpression, stylename, enabled);
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        {
            final Node node = nodes[i];
            if (node instanceof OfficeGroup)
            {
                final OfficeGroup group = (OfficeGroup) node;
                final FormulaExpression exp = (FormulaExpression) group.getGroupingExpression();

                try
                {
                    final String expression = exp.getFormulaExpression();
                    if ( expression == null)
                        continue;
                    final FormulaFunction function = (FormulaFunction) parser.parse(expression);
                    final LValue[] parameters = function.getChildValues();
                    if (parameters.length > 0)
                    {
                        String name = parameters[0].toString();
                        for (int j = 0; j < reportFunctions.length; j++)
                        {
                            if (reportFunctions[j] instanceof FormulaExpression)
                            {
                                final FormulaExpression reportExp = (FormulaExpression) reportFunctions[j];

                                if (reportExp.getName().equals(name))
                                {
                                    final LValue val = (LValue) parser.parse(reportExp.getFormulaExpression());
                                    if (val instanceof FormulaFunction)
                                    {
                                        final FormulaFunction reportFunction = (FormulaFunction) val;
                                   
                                        final ContextLookup context = (ContextLookup) reportFunction.getChildValues()[0];
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            final FlowController flowController)
            throws DataSourceException
    {
        // here it is relatively easy. We have to evaluate the expression, convert
        // the result into a string, and print that string.
        final FormulaExpression formulaExpression = element.getValueExpression();
        final Object result = LayoutControllerUtil.evaluateExpression(flowController, element, formulaExpression);
        if (result == null)
        {
            // ignore it. Ignoring it is much better than printing 'null'.
            // Log.debug("Formula '" + formulaExpression.getFormula() + "' evaluated to null.");
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