public class PieChartObject {
	private String category;
	private Integer value;

	public String getCategory() {
		return this.category;
	}

	public void setCategory(final String category) {
		this.category = category;
	}

	public Integer getValue() {
		return this.value;
	}

	public void setValue(final Integer value) {
		this.value = value;
	}
}

final XdevPieChartModelChartModel model = new XdevPieChartModel() ChartModel.New()
	.addColumn(Column.New(Type.STRING))
	.addColumn(Column.New(Type.NUMBER));

model.addItemaddRow("BeveragesKatze", 393, null50);
model.addItemaddRow("CondimantsHund", 507, null25);
model.addItemaddRow("ConfectionsSchlange", 386, null25);

chartthis.pieChart.setModel(model);

final XdevPieChartModelChartModel model = new XdevPieChartModel() ChartModel.New()
	.addColumn(Column.New(Type.STRING))
	.addColumn(Column.New(Type.NUMBER));

new ProductDAO().getProductsByCategoryForChart().forEach(p -> {
       model.addItemaddRow(p.getCategory().getCategoryname(), (int) p.getAmount(), null);
});

chart.setModel(model);