Example usage for org.jfree.data.time TimeSeriesDataItem setValue

Introduction

In this page you can find the example usage for org.jfree.data.time TimeSeriesDataItem setValue.

Prototype

public void setValue(Number value) 

Source Link

Document

Sets the value for this data item.

Usage

From source file:org.jfree.data.time.TimeSeriesDataItemTest.java

/**
 * Test the equals() method./*from  w  ww .  j ava2s . c o m*/
 */
@Test
public void testEquals() {
    TimeSeriesDataItem item1 = new TimeSeriesDataItem(new Day(23, 9, 2001), 99.7);
    TimeSeriesDataItem item2 = new TimeSeriesDataItem(new Day(23, 9, 2001), 99.7);
    assertTrue(item1.equals(item2));
    assertTrue(item2.equals(item1));

    item1.setValue(new Integer(5));
    assertFalse(item1.equals(item2));
    item2.setValue(new Integer(5));
    assertTrue(item1.equals(item2));
}

---

From source file:org.jfree.data.time.junit.TimeSeriesTest.java

/**
 * Create a TimeSeriesDataItem, add it to a TimeSeries.  Now, modifying
 * the original TimeSeriesDataItem should NOT affect the TimeSeries.
 *///from   w w w  . ja  v  a 2 s  .  c  o m
public void testAdd_TimeSeriesDataItem() {
    TimeSeriesDataItem item = new TimeSeriesDataItem(new Year(2009), 1.0);
    TimeSeries series = new TimeSeries("S1");
    series.add(item);
    assertTrue(item.equals(series.getDataItem(0)));
    item.setValue(new Double(99.9));
    assertFalse(item.equals(series.getDataItem(0)));
}

---

From source file:org.jfree.data.time.TimeSeriesTest.java

/**
 * Create a TimeSeriesDataItem, add it to a TimeSeries.  Now, modifying
 * the original TimeSeriesDataItem should NOT affect the TimeSeries.
 *//*from  w w  w.ja  v a 2s . c o m*/
@Test
public void testAdd_TimeSeriesDataItem() {
    TimeSeriesDataItem item = new TimeSeriesDataItem(new Year(2009), 1.0);
    TimeSeries series = new TimeSeries("S1");
    series.add(item);
    assertTrue(item.equals(series.getDataItem(0)));
    item.setValue(new Double(99.9));
    assertFalse(item.equals(series.getDataItem(0)));
}

---

From source file:org.jfree.data.time.junit.TimeSeriesTest.java

/**
 * Some more checks for the addOrUpdate() method.
 *//*from   ww  w. ja va  2 s  .  co  m*/
public void testAddOrUpdate4() {
    TimeSeries ts = new TimeSeries("S");
    TimeSeriesDataItem overwritten = ts.addOrUpdate(new Year(2009), 20.09);
    assertNull(overwritten);
    overwritten = ts.addOrUpdate(new Year(2009), 1.0);
    assertEquals(new Double(20.09), overwritten.getValue());
    assertEquals(new Double(1.0), ts.getValue(new Year(2009)));

    // changing the overwritten record shouldn't affect the series
    overwritten.setValue(null);
    assertEquals(new Double(1.0), ts.getValue(new Year(2009)));

    TimeSeriesDataItem item = new TimeSeriesDataItem(new Year(2010), 20.10);
    overwritten = ts.addOrUpdate(item);
    assertNull(overwritten);
    assertEquals(new Double(20.10), ts.getValue(new Year(2010)));
    // changing the item that was added should not change the series
    item.setValue(null);
    assertEquals(new Double(20.10), ts.getValue(new Year(2010)));
}

---

From source file:org.jfree.data.time.TimeSeriesTest.java

/**
 * Some more checks for the addOrUpdate() method.
 *///from   ww w.ja  va  2  s.c  o  m
@Test
public void testAddOrUpdate4() {
    TimeSeries ts = new TimeSeries("S");
    TimeSeriesDataItem overwritten = ts.addOrUpdate(new Year(2009), 20.09);
    assertNull(overwritten);
    overwritten = ts.addOrUpdate(new Year(2009), 1.0);
    assertEquals(new Double(20.09), overwritten.getValue());
    assertEquals(new Double(1.0), ts.getValue(new Year(2009)));

    // changing the overwritten record shouldn't affect the series
    overwritten.setValue(null);
    assertEquals(new Double(1.0), ts.getValue(new Year(2009)));

    TimeSeriesDataItem item = new TimeSeriesDataItem(new Year(2010), 20.10);
    overwritten = ts.addOrUpdate(item);
    assertNull(overwritten);
    assertEquals(new Double(20.10), ts.getValue(new Year(2010)));
    // changing the item that was added should not change the series
    item.setValue(null);
    assertEquals(new Double(20.10), ts.getValue(new Year(2010)));
}

---

From source file:org.jfree.data.time.TimeSeries.java

/**
 * Updates (changes) the value of a data item.
 *
 * @param index  the index of the data item.
 * @param value  the new value (<code>null</code> permitted).
 *///from   www . ja  v a  2 s  .  c o m
public void update(int index, Number value) {
    TimeSeriesDataItem item = (TimeSeriesDataItem) this.data.get(index);
    boolean iterate = false;
    Number oldYN = item.getValue();
    if (oldYN != null) {
        double oldY = oldYN.doubleValue();
        if (!Double.isNaN(oldY)) {
            iterate = oldY <= this.minY || oldY >= this.maxY;
        }
    }
    item.setValue(value);
    if (iterate) {
        updateMinMaxYByIteration();
    } else if (value != null) {
        double yy = value.doubleValue();
        this.minY = minIgnoreNaN(this.minY, yy);
        this.maxY = maxIgnoreNaN(this.maxY, yy);
    }
    fireSeriesChanged();
}

---

From source file:org.jfree.data.time.TimeSeries.java

/**
 * Adds or updates an item in the times series and sends a
 * {@link SeriesChangeEvent} to all registered listeners.
 *
 * @param item  the data item (<code>null</code> not permitted).
 *
 * @return A copy of the overwritten data item, or <code>null</code> if no
 *         item was overwritten.//from ww  w . j  a  v a2 s .c o  m
 *
 * @since 1.0.14
 */
public TimeSeriesDataItem addOrUpdate(TimeSeriesDataItem item) {

    ParamChecks.nullNotPermitted(item, "item");
    Class periodClass = item.getPeriod().getClass();
    if (this.timePeriodClass == null) {
        this.timePeriodClass = periodClass;
    } else if (!this.timePeriodClass.equals(periodClass)) {
        String msg = "You are trying to add data where the time " + "period class is " + periodClass.getName()
                + ", but the TimeSeries is expecting an instance of " + this.timePeriodClass.getName() + ".";
        throw new SeriesException(msg);
    }
    TimeSeriesDataItem overwritten = null;
    int index = Collections.binarySearch(this.data, item);
    if (index >= 0) {
        TimeSeriesDataItem existing = (TimeSeriesDataItem) this.data.get(index);
        overwritten = (TimeSeriesDataItem) existing.clone();
        // figure out if we need to iterate through all the y-values
        // to find the revised minY / maxY
        boolean iterate = false;
        Number oldYN = existing.getValue();
        double oldY = oldYN != null ? oldYN.doubleValue() : Double.NaN;
        if (!Double.isNaN(oldY)) {
            iterate = oldY <= this.minY || oldY >= this.maxY;
        }
        existing.setValue(item.getValue());
        if (iterate) {
            updateMinMaxYByIteration();
        } else if (item.getValue() != null) {
            double yy = item.getValue().doubleValue();
            this.minY = minIgnoreNaN(this.minY, yy);
            this.maxY = maxIgnoreNaN(this.maxY, yy);
        }
    } else {
        item = (TimeSeriesDataItem) item.clone();
        this.data.add(-index - 1, item);
        updateBoundsForAddedItem(item);

        // check if this addition will exceed the maximum item count...
        if (getItemCount() > this.maximumItemCount) {
            TimeSeriesDataItem d = (TimeSeriesDataItem) this.data.remove(0);
            updateBoundsForRemovedItem(d);
        }
    }
    removeAgedItems(false); // remove old items if necessary, but
                            // don't notify anyone, because that
                            // happens next anyway...
    fireSeriesChanged();
    return overwritten;

}

---