Examples of org.jfree.data.general.Dataset

org.jfree.data.general.Dataset
The base interface for data sets.
All datasets are required to support the {@link DatasetChangeEvent}mechanism by allowing listeners to register and receive notification of any changes to the dataset.
In addition, all datasets must belong to one (and only one) {@link DatasetGroup}. The group object maintains a reader-writer lock which provides synchronised access to the datasets in multi-threaded code.

  }


  private CategoryDataset createLinesDataset()
  {
    final Object maybeCollector = getDataRow().get(getLinesDataSource());
    final Dataset dataset;
    if (maybeCollector instanceof ICollectorFunction)
    {
      final ICollectorFunction collector = (ICollectorFunction) maybeCollector;
      dataset = (Dataset) collector.getDatasourceValue();
    }

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  public Object getValue()
  {
    try
    {
      final Object maybeCollector = getDataRow().get(getDataSource());
      final Dataset dataset;
      final Object cacheKey;
      if (maybeCollector instanceof ICollectorFunction)
      {
        final ICollectorFunction collector = (ICollectorFunction) maybeCollector;
        dataset = (Dataset) collector.getDatasourceValue();

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  }


  private XYDataset createLinesDataset()
  {
    final Object maybeCollector = getDataRow().get(getSecondaryDataSet());
    final Dataset dataset;
    if (maybeCollector instanceof ICollectorFunction)
    {
      final ICollectorFunction collector = (ICollectorFunction) maybeCollector;
      dataset = (Dataset) collector.getDatasourceValue();
    }

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  }
  
  protected ChartHyperlinkProvider resolveEntityProvider(ChartEntity entity)
  {
    ChartHyperlinkProvider provider = null;
    Dataset dataset = getEntityDataset(entity);
    if (dataset != null)
    {
      provider = (ChartHyperlinkProvider) datasetProviders.get(dataset);
    }
    return provider;

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    return provider;
  }
  
  protected Dataset getEntityDataset(ChartEntity entity)
  {
    Dataset dataset = null;
    if (entity instanceof CategoryItemEntity)
    {
      dataset = ((CategoryItemEntity) entity).getDataset();
    }
    else if (entity instanceof XYItemEntity)

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    return chart;
  }


  public Dataset getDataset()
  {//FIXMETHEME make different datasets
    Dataset dataset = null;
    switch (chart.getDataset().getDatasetType()){
    case JRChartDataset.CATEGORY_DATASET:
      dataset = createCategoryDataset();
      break;
    case JRChartDataset.GANTT_DATASET:

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  }


  private XYDataset createLinesDataset()
  {
    final Object maybeCollector = getDataRow().get(getSecondaryDataSet());
    final Dataset dataset;
    if (maybeCollector instanceof ICollectorFunction)
    {
      final ICollectorFunction collector = (ICollectorFunction) maybeCollector;
      dataset = (Dataset) collector.getDatasourceValue();
    }

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   *
   * @return the value of the function.
   */
  public final Object getValue()
  {
    final Dataset dataSet = getDataSet();
    if (groupStateKey != null)
    {
      return new StaticCollectorFunctionResult(dataSet, new CacheKey(groupStateKey, lastGroupSequenceNumber));
    }
    if (globalStateKey != null)

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    if (result == null)
    {
      return null;
    }
    
    final Dataset dataset = result.get(lastGroupSequenceNumber);
    if (dataset != null)
    {
      return dataset;
    }


    final Dataset created = createNewDataset();
    result.set(lastGroupSequenceNumber, created);
    return created;
  }

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  }


  private CategoryDataset createLinesDataset()
  {
    final Object maybeCollector = getDataRow().get(getLinesDataSource());
    final Dataset dataset;
    if (maybeCollector instanceof ICollectorFunction)
    {
      final ICollectorFunction collector = (ICollectorFunction) maybeCollector;
      dataset = (Dataset) collector.getDatasourceValue();
    }

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