Examples of org.jfree.report.flow.FlowController

org.jfree.report.flow.FlowController
A flow-controller is an immutable object. Whenever an method, that may change the internal state of the controller, is invoked, a new instance of the controller is returned. @author Thomas Morgner

        if (n == null)
        {
            return olc;
        }


        final FlowController flowController = getFlowController();
        final ReportContext reportContext = flowController.getReportContext();
        final LayoutControllerFactory layoutControllerFactory =
                reportContext.getLayoutControllerFactory();
        return layoutControllerFactory.create(flowController, n, olc);


    }

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    {
    }


    protected boolean isValueChanged()
    {
        final FlowController controller = getFlowController();
        final GlobalMasterRow masterRow = controller.getMasterRow();
        final ReportDataRow reportDataRow = masterRow.getReportDataRow();
        return reportDataRow.getCursor() == 0;
    }

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            DataSourceException
    {
        final FixedTextElement fte = (FixedTextElement) getNode();
        final Section content = fte.getContent();


        final FlowController flowController = getFlowController();
        final ReportContext reportContext = flowController.getReportContext();
        final LayoutControllerFactory layoutControllerFactory =
                reportContext.getLayoutControllerFactory();


        final FixedTextLayoutController flc = (FixedTextLayoutController) clone();
        flc.setState(AbstractReportElementLayoutController.FINISHED);

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    {
        final ImageElement imageElement = (ImageElement) getNode();
        final FormulaExpression formulaExpression = imageElement.getFormula();
        if (formulaExpression == null)
        {
            final FlowController controller = getFlowController();
            final GlobalMasterRow masterRow = controller.getMasterRow();
            final ReportDataRow reportDataRow = masterRow.getReportDataRow();
            return reportDataRow.getCursor() == 0;
        }


        try

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  protected LayoutController processContent(final ReportTarget target)
      throws DataSourceException, ReportProcessingException,
      ReportDataFactoryException
  {


    final FlowController flowController = getFlowController();


    final Node[] nodes = getNodes();
    final int currentIndex = getIndex();
    if (currentIndex < nodes.length)
    {

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   */
  protected LayoutController finishElement(final ReportTarget target)
      throws ReportProcessingException, DataSourceException,
      ReportDataFactoryException
  {
    FlowController fc = handleDefaultEndElement(target);


    // unwind the stack ..
    final Section s = (Section) getElement();
    fc = finishData(target, fc);


    if (s.isRepeat())
    {
      final FlowController cfc = tryRepeatingCommit(fc);
      if (cfc != null)
      {
        // Go back to the beginning ...
        final SectionLayoutController derived = (SectionLayoutController) clone();
        derived.setProcessingState(ElementLayoutController.NOT_STARTED);

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    final LayoutControllerFactory layoutFactory =
        context.getLayoutControllerFactory();


    // we have the data and we have our position inside the report.
    // lets generate something ...
    final FlowController flowController = createFlowControler(context, job);


    LayoutController layoutController =
        layoutFactory.create(flowController, job.getReportStructureRoot(), null);


    try

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      throws DataSourceException, ReportProcessingException,
      ReportDataFactoryException
  {
    final Element s = getElement();


    FlowController fc = getFlowController();
    // Step 3: Add the expressions. Any expressions defined for the subreport
    // will work on the queried dataset.
    fc = startData(target, fc);


    final Expression[] expressions = s.getExpressions();

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   */
  protected LayoutController finishElement(final ReportTarget target)
      throws ReportProcessingException, DataSourceException,
      ReportDataFactoryException
  {
    final FlowController fc = handleDefaultEndElement(target);
    final ElementLayoutController derived = (ElementLayoutController) clone();
    derived.setProcessingState(ElementLayoutController.FINISHED);
    derived.setFlowController(fc);
    return derived;
  }

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    if (e.isVirtual() == false)
    {
      target.endElement(getAttributeMap());
    }


    FlowController fc = getFlowController();
    final PrecomputedValueRegistry pcvr =
        fc.getPrecomputedValueRegistry();
    // Step 2: Remove the expressions of this element
    final int expressionsCount = getExpressionsCount();
    if (expressionsCount != 0)
    {
      final ExpressionSlot[] activeExpressions = fc.getActiveExpressions();
      for (int i = activeExpressions.length - expressionsCount; i < activeExpressions.length; i++)
      {
        final ExpressionSlot slot = activeExpressions[i];
        pcvr.addFunction(slot.getName(), slot.getValue());
      }
      fc = fc.deactivateExpressions();
    }


    if (isPrecomputing() == false)
    {
      pcvr.finishElement(new ElementPrecomputeKey(e));

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