Example usage for org.jfree.data.general ValueDataset getGroup

Introduction

In this page you can find the example usage for org.jfree.data.general ValueDataset getGroup.

Prototype

public DatasetGroup getGroup();

Source Link

Document

Returns the dataset group.

Usage

From source file:de.laures.cewolf.jfree.ThermometerPlot.java

/**
 * Sets the dataset for the plot, replacing the existing dataset if there
 * is one, and sends a {@link PlotChangeEvent} to all registered listeners.
 *
 * @param dataset  the dataset (<code>null</code> permitted).
 *
 * @see #getDataset()//ww  w. j  a  v  a 2 s  .c  o  m
 */
public void setDataset(ValueDataset dataset) {

    // if there is an existing dataset, remove the plot from the list of change listeners...
    ValueDataset existing = this.dataset;
    if (existing != null) {
        existing.removeChangeListener(this);
    }

    // set the new dataset, and register the chart as a change listener...
    this.dataset = dataset;
    if (dataset != null) {
        setDatasetGroup(dataset.getGroup());
        dataset.addChangeListener(this);
    }

    // send a dataset change event to self...
    DatasetChangeEvent event = new DatasetChangeEvent(this, dataset);
    datasetChanged(event);
}

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