Examples of OHLCDataItem

org.jfree.data.xy.OHLCDataItem
Represents a single (open-high-low-close) data item in an {@link DefaultOHLCDataset}. This data item is commonly used to summarise the trading activity of a financial commodity for a fixed period (most often one day).

Examples of org.jfree.data.xy.OHLCDataItem

        assertFalse(d1.equals(d2));
        d2 = new DefaultOHLCDataset("Series 2", new OHLCDataItem[0]);
        assertTrue(d1.equals(d2));
        
        d1 = new DefaultOHLCDataset("Series 2", new OHLCDataItem[] {
                new OHLCDataItem(new Date(123L), 1.2, 3.4, 5.6, 7.8, 99.9)});
        assertFalse(d1.equals(d2));
        d2 = new DefaultOHLCDataset("Series 2", new OHLCDataItem[] {
                new OHLCDataItem(new Date(123L), 1.2, 3.4, 5.6, 7.8, 99.9)});
        assertTrue(d1.equals(d2));
        
        
    }

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Examples of org.jfree.data.xy.OHLCDataItem

     * Some checks for the findRangeBounds() method.
     */
    public void testFindRangeBounds() {
        HighLowRenderer renderer = new HighLowRenderer();
        
        OHLCDataItem item1 = new OHLCDataItem(new Date(1L), 2.0, 4.0, 1.0, 3.0, 
                100);
        OHLCDataset dataset = new DefaultOHLCDataset("S1", 
                new OHLCDataItem[] {item1});
        Range range = renderer.findRangeBounds(dataset);
        assertEquals(new Range(1.0, 4.0), range);


        OHLCDataItem item2 = new OHLCDataItem(new Date(1L), -1.0, 3.0, -1.0, 
                3.0, 100);
        dataset = new DefaultOHLCDataset("S1", new OHLCDataItem[] {item1, 
                item2});
        range = renderer.findRangeBounds(dataset);
        assertEquals(new Range(-1.0, 4.0), range);

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Examples of org.jfree.data.xy.OHLCDataItem

     * Some checks for the findRangeBounds() method.
     */
    public void testFindRangeBounds() {
        CandlestickRenderer renderer = new CandlestickRenderer();
        
        OHLCDataItem item1 = new OHLCDataItem(new Date(1L), 2.0, 4.0, 1.0, 3.0, 
                100);
        OHLCDataset dataset = new DefaultOHLCDataset("S1", 
                new OHLCDataItem[] {item1});
        Range range = renderer.findRangeBounds(dataset);
        assertEquals(new Range(1.0, 4.0), range);


        OHLCDataItem item2 = new OHLCDataItem(new Date(1L), -1.0, 3.0, -1.0, 
                3.0, 100);
        dataset = new DefaultOHLCDataset("S1", new OHLCDataItem[] {item1, 
                item2});
        range = renderer.findRangeBounds(dataset);
        assertEquals(new Range(-1.0, 4.0), range);

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Examples of org.jfree.data.xy.OHLCDataItem

     */
    @Test
    public void testFindRangeBounds() {
        CandlestickRenderer renderer = new CandlestickRenderer();


        OHLCDataItem item1 = new OHLCDataItem(new Date(1L), 2.0, 4.0, 1.0, 3.0,
                100);
        OHLCDataset dataset = new DefaultOHLCDataset("S1",
                new OHLCDataItem[] {item1});
        Range range = renderer.findRangeBounds(dataset);
        assertEquals(new Range(1.0, 4.0), range);


        OHLCDataItem item2 = new OHLCDataItem(new Date(1L), -1.0, 3.0, -1.0,
                3.0, 100);
        dataset = new DefaultOHLCDataset("S1", new OHLCDataItem[] {item1,
                item2});
        range = renderer.findRangeBounds(dataset);
        assertEquals(new Range(-1.0, 4.0), range);

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Examples of org.jfree.data.xy.OHLCDataItem

     */
    @Test
    public void testFindRangeBounds() {
        HighLowRenderer renderer = new HighLowRenderer();


        OHLCDataItem item1 = new OHLCDataItem(new Date(1L), 2.0, 4.0, 1.0, 3.0,
                100);
        OHLCDataset dataset = new DefaultOHLCDataset("S1",
                new OHLCDataItem[] {item1});
        Range range = renderer.findRangeBounds(dataset);
        assertEquals(new Range(1.0, 4.0), range);


        OHLCDataItem item2 = new OHLCDataItem(new Date(1L), -1.0, 3.0, -1.0,
                3.0, 100);
        dataset = new DefaultOHLCDataset("S1", new OHLCDataItem[] {item1,
                item2});
        range = renderer.findRangeBounds(dataset);
        assertEquals(new Range(-1.0, 4.0), range);

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Examples of org.jfree.data.xy.OHLCDataItem


    /**
     * Confirm that the equals method can distinguish all the required fields.
     */
    public void testEquals() {     
        OHLCDataItem i1 = new OHLCDataItem(
            new Date(1L), 1.0, 2.0, 3.0, 4.0, 5.0
        );
        OHLCDataItem i2 = new OHLCDataItem(
            new Date(1L), 1.0, 2.0, 3.0, 4.0, 5.0
        );
        assertTrue(i1.equals(i2));
        assertTrue(i2.equals(i1));
    }

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Examples of org.jfree.data.xy.OHLCDataItem


    /**
     * Instances of this class are immutable - cloning not required.
     */
    public void testCloning() {
        OHLCDataItem i1 = new OHLCDataItem(
            new Date(1L), 1.0, 2.0, 3.0, 4.0, 5.0
        );
        assertFalse(i1 instanceof Cloneable);
    }

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Examples of org.jfree.data.xy.OHLCDataItem


    /**
     * Serialize an instance, restore it, and check for equality.
     */
    public void testSerialization() {
        OHLCDataItem i1 = new OHLCDataItem(
            new Date(1L), 1.0, 2.0, 3.0, 4.0, 5.0
        );
        OHLCDataItem i2 = null;
        
        try {
            ByteArrayOutputStream buffer = new ByteArrayOutputStream();
            ObjectOutput out = new ObjectOutputStream(buffer);
            out.writeObject(i1);

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Examples of org.jfree.data.xy.OHLCDataItem

    /**
     * A small test for the data range calculated on this dataset.
     */
    public void testDataRange() {
        OHLCDataItem[] data = new OHLCDataItem[3];
        data[0] = new OHLCDataItem(new Date(11L), 2.0, 4.0, 1.0, 3.0, 100.0);
        data[1] = new OHLCDataItem(new Date(22L), 4.0, 9.0, 2.0, 5.0, 120.0);
        data[2] = new OHLCDataItem(new Date(33L), 3.0, 7.0, 3.0, 6.0, 140.0);
        DefaultOHLCDataset d = new DefaultOHLCDataset("S1", data);
        Range r = DatasetUtilities.findRangeBounds(d, false);
        assertEquals(1.0, r.getLowerBound(), EPSILON);
        assertEquals(9.0, r.getUpperBound(), EPSILON);
    }

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Examples of org.jfree.data.xy.OHLCDataItem

        } else if (chartDataCache == null || chartDataCache.length != candles.size() || !chartDataCache[0].getDate().equals(candles.get(0).start)) { // Full
            int length = candles.size();
            chartDataCache = new OHLCDataItem[length];
            for (int i = 0; i < length; i++) {
                HistoryUtils.Candle candle = candles.get(i);
                chartDataCache[i] = new OHLCDataItem(candle.start, candle.open, candle.high, candle.low, candle.close, candle.volume);
            }
        } else { // Fast
            HistoryUtils.Candle lastCandle = candles.get(candles.size() - 1);
            chartDataCache[chartDataCache.length - 1] = new OHLCDataItem(lastCandle.start, lastCandle.open, lastCandle.high, lastCandle.low, lastCandle.close, lastCandle.volume);
        }
        return chartDataCache;
    }

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