Example usage for org.jfree.data DefaultKeyedValues getValue

Introduction

In this page you can find the example usage for org.jfree.data DefaultKeyedValues getValue.

Prototype

@Override
public Number getValue(Comparable key) 

Source Link

Document

Returns the value for a given key.

Usage

From source file:org.jfree.data.DefaultKeyedValuesTest.java

/**
 * Some checks for the getValue() methods.
 *//*from   ww  w .j  a v  a 2s  .  co  m*/
@Test
public void testGetValue() {
    DefaultKeyedValues v1 = new DefaultKeyedValues();
    try {
        /* Number n = */ v1.getValue(-1);
        assertTrue(false);
    } catch (IndexOutOfBoundsException e) {
        // expected
    }
    try {
        /* Number n = */ v1.getValue(0);
        assertTrue(false);
    } catch (IndexOutOfBoundsException e) {
        // expected
    }
    DefaultKeyedValues v2 = new DefaultKeyedValues();
    v2.addValue("K1", new Integer(1));
    v2.addValue("K2", new Integer(2));
    v2.addValue("K3", new Integer(3));
    assertEquals(new Integer(3), v2.getValue(2));

    boolean pass = false;
    try {
        /* Number n = */ v2.getValue("KK");
    } catch (UnknownKeyException e) {
        pass = true;
    }
    assertTrue(pass);
}

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From source file:org.jfree.data.DefaultKeyedValuesTest.java

/**
 * Some checks for the addValue() method.
 *//*from   w  w w  .  j a v  a  2 s .  com*/
@Test
public void testAddValue() {
    DefaultKeyedValues v1 = new DefaultKeyedValues();
    v1.addValue("A", 1.0);
    assertEquals(new Double(1.0), v1.getValue("A"));
    v1.addValue("B", 2.0);
    assertEquals(new Double(2.0), v1.getValue("B"));
    v1.addValue("B", 3.0);
    assertEquals(new Double(3.0), v1.getValue("B"));
    assertEquals(2, v1.getItemCount());
    v1.addValue("A", null);
    assertNull(v1.getValue("A"));
    assertEquals(2, v1.getItemCount());

    boolean pass = false;
    try {
        v1.addValue(null, 99.9);
    } catch (IllegalArgumentException e) {
        pass = true;
    }
    assertTrue(pass);
}

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From source file:org.jfree.data.DefaultKeyedValuesTest.java

/**
 * Some checks for the insertValue() method.
 */// w w  w.  j a va2s.  c om
@Test
public void testInsertValue() {
    DefaultKeyedValues v1 = new DefaultKeyedValues();
    v1.insertValue(0, "A", 1.0);
    assertEquals(new Double(1.0), v1.getValue(0));
    v1.insertValue(0, "B", 2.0);
    assertEquals(new Double(2.0), v1.getValue(0));
    assertEquals(new Double(1.0), v1.getValue(1));

    // it's OK to use an index equal to the size of the list
    v1.insertValue(2, "C", 3.0);
    assertEquals(new Double(2.0), v1.getValue(0));
    assertEquals(new Double(1.0), v1.getValue(1));
    assertEquals(new Double(3.0), v1.getValue(2));

    // try replacing an existing value
    v1.insertValue(2, "B", 4.0);
    assertEquals(new Double(1.0), v1.getValue(0));
    assertEquals(new Double(3.0), v1.getValue(1));
    assertEquals(new Double(4.0), v1.getValue(2));
}

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From source file:org.jfree.data.junit.DefaultKeyedValuesTest.java

/**
 * Some checks for the getValue() methods.
 *//*  w ww . j  a  va2s .  c  o  m*/
public void testGetValue() {
    DefaultKeyedValues v1 = new DefaultKeyedValues();
    try {
        /* Number n = */ v1.getValue(-1);
        assertTrue(false);
    } catch (IndexOutOfBoundsException e) {
        // expected
    }
    try {
        /* Number n = */ v1.getValue(0);
        assertTrue(false);
    } catch (IndexOutOfBoundsException e) {
        // expected
    }
    DefaultKeyedValues v2 = new DefaultKeyedValues();
    v2.addValue("K1", new Integer(1));
    v2.addValue("K2", new Integer(2));
    v2.addValue("K3", new Integer(3));
    assertEquals(new Integer(3), v2.getValue(2));

    boolean pass = false;
    try {
        /* Number n = */ v2.getValue("KK");
    } catch (UnknownKeyException e) {
        pass = true;
    }
    assertTrue(pass);
}

---

From source file:org.jfree.data.junit.DefaultKeyedValuesTest.java

/**
 * Some checks for the addValue() method.
 *//*ww  w  .j  ava2s .c  o  m*/
public void testAddValue() {
    DefaultKeyedValues v1 = new DefaultKeyedValues();
    v1.addValue("A", 1.0);
    assertEquals(new Double(1.0), v1.getValue("A"));
    v1.addValue("B", 2.0);
    assertEquals(new Double(2.0), v1.getValue("B"));
    v1.addValue("B", 3.0);
    assertEquals(new Double(3.0), v1.getValue("B"));
    assertEquals(2, v1.getItemCount());
    v1.addValue("A", null);
    assertNull(v1.getValue("A"));
    assertEquals(2, v1.getItemCount());

    boolean pass = false;
    try {
        v1.addValue(null, 99.9);
    } catch (IllegalArgumentException e) {
        pass = true;
    }
    assertTrue(pass);
}

---

From source file:org.jfree.data.junit.DefaultKeyedValuesTest.java

/**
 * Some checks for the insertValue() method.
 *///from   w  ww  .  j  a  v a2s . c  o  m
public void testInsertValue() {
    DefaultKeyedValues v1 = new DefaultKeyedValues();
    v1.insertValue(0, "A", 1.0);
    assertEquals(new Double(1.0), v1.getValue(0));
    v1.insertValue(0, "B", 2.0);
    assertEquals(new Double(2.0), v1.getValue(0));
    assertEquals(new Double(1.0), v1.getValue(1));

    // it's OK to use an index equal to the size of the list
    v1.insertValue(2, "C", 3.0);
    assertEquals(new Double(2.0), v1.getValue(0));
    assertEquals(new Double(1.0), v1.getValue(1));
    assertEquals(new Double(3.0), v1.getValue(2));

    // try replacing an existing value
    v1.insertValue(2, "B", 4.0);
    assertEquals(new Double(1.0), v1.getValue(0));
    assertEquals(new Double(3.0), v1.getValue(1));
    assertEquals(new Double(4.0), v1.getValue(2));
}

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From source file:org.jfree.data.DefaultKeyedValues2D.java

/**
 * Returns the value for the given row and column keys.  This method will
 * throw an {@link UnknownKeyException} if either key is not defined in the
 * data structure.//w w w .j a v a 2s  .  c  om
 *
 * @param rowKey  the row key (<code>null</code> not permitted).
 * @param columnKey  the column key (<code>null</code> not permitted).
 *
 * @return The value (possibly <code>null</code>).
 * 
 * @see #addValue(Number, Comparable, Comparable)
 * @see #removeValue(Comparable, Comparable)
 */
public Number getValue(Comparable rowKey, Comparable columnKey) {
    if (rowKey == null) {
        throw new IllegalArgumentException("Null 'rowKey' argument.");
    }
    if (columnKey == null) {
        throw new IllegalArgumentException("Null 'columnKey' argument.");
    }

    // check that the column key is defined in the 2D structure
    if (!(this.columnKeys.contains(columnKey))) {
        throw new UnknownKeyException("Unrecognised columnKey: " + columnKey);
    }

    // now fetch the row data - need to bear in mind that the row
    // structure may not have an entry for the column key, but that we
    // have already checked that the key is valid for the 2D structure
    int row = getRowIndex(rowKey);
    if (row >= 0) {
        DefaultKeyedValues rowData = (DefaultKeyedValues) this.rows.get(row);
        int col = rowData.getIndex(columnKey);
        return (col >= 0 ? rowData.getValue(col) : null);
    } else {
        throw new UnknownKeyException("Unrecognised rowKey: " + rowKey);
    }
}

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From source file:org.jfree.data.DefaultKeyedValues2D.java

/**
 * Returns the value for the given row and column keys.  This method will
 * throw an {@link UnknownKeyException} if either key is not defined in the
 * data structure./*from w  ww.  j  a v a  2s.  com*/
 *
 * @param rowKey  the row key (<code>null</code> not permitted).
 * @param columnKey  the column key (<code>null</code> not permitted).
 *
 * @return The value (possibly <code>null</code>).
 *
 * @see #addValue(Number, Comparable, Comparable)
 * @see #removeValue(Comparable, Comparable)
 */
@Override
public Number getValue(Comparable rowKey, Comparable columnKey) {
    ParamChecks.nullNotPermitted(rowKey, "rowKey");
    ParamChecks.nullNotPermitted(columnKey, "columnKey");

    // check that the column key is defined in the 2D structure
    if (!(this.columnKeys.contains(columnKey))) {
        throw new UnknownKeyException("Unrecognised columnKey: " + columnKey);
    }

    // now fetch the row data - need to bear in mind that the row
    // structure may not have an entry for the column key, but that we
    // have already checked that the key is valid for the 2D structure
    int row = getRowIndex(rowKey);
    if (row >= 0) {
        DefaultKeyedValues rowData = (DefaultKeyedValues) this.rows.get(row);
        int col = rowData.getIndex(columnKey);
        return (col >= 0 ? rowData.getValue(col) : null);
    } else {
        throw new UnknownKeyException("Unrecognised rowKey: " + rowKey);
    }
}

---

From source file:org.jfree.data.DefaultKeyedValues2D.java

/**
 * Removes a value from the table by setting it to <code>null</code>.  If
 * all the values in the specified row and/or column are now
 * <code>null</code>, the row and/or column is removed from the table.
 *
 * @param rowKey  the row key (<code>null</code> not permitted).
 * @param columnKey  the column key (<code>null</code> not permitted).
 *
 * @see #addValue(Number, Comparable, Comparable)
 *///from   w w  w.  j  a  va 2 s .co m
public void removeValue(Comparable rowKey, Comparable columnKey) {
    setValue(null, rowKey, columnKey);

    // 1. check whether the row is now empty.
    boolean allNull = true;
    int rowIndex = getRowIndex(rowKey);
    DefaultKeyedValues row = (DefaultKeyedValues) this.rows.get(rowIndex);

    for (int item = 0, itemCount = row.getItemCount(); item < itemCount; item++) {
        if (row.getValue(item) != null) {
            allNull = false;
            break;
        }
    }

    if (allNull) {
        this.rowKeys.remove(rowIndex);
        this.rows.remove(rowIndex);
    }

    // 2. check whether the column is now empty.
    allNull = true;
    //int columnIndex = getColumnIndex(columnKey);

    for (int item = 0, itemCount = this.rows.size(); item < itemCount; item++) {
        row = (DefaultKeyedValues) this.rows.get(item);
        int columnIndex = row.getIndex(columnKey);
        if (columnIndex >= 0 && row.getValue(columnIndex) != null) {
            allNull = false;
            break;
        }
    }

    if (allNull) {
        for (int item = 0, itemCount = this.rows.size(); item < itemCount; item++) {
            row = (DefaultKeyedValues) this.rows.get(item);
            int columnIndex = row.getIndex(columnKey);
            if (columnIndex >= 0) {
                row.removeValue(columnIndex);
            }
        }
        this.columnKeys.remove(columnKey);
    }
}

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From source file:org.jfree.data.DefaultKeyedValues2D.java

/**
 * Returns the value for a given row and column.
 *
 * @param row  the row index./*from  w  w  w  . ja v a  2 s  .  c  o m*/
 * @param column  the column index.
 *
 * @return The value.
 * 
 * @see #getValue(Comparable, Comparable)
 */
public Number getValue(int row, int column) {
    Number result = null;
    DefaultKeyedValues rowData = (DefaultKeyedValues) this.rows.get(row);
    if (rowData != null) {
        Comparable columnKey = (Comparable) this.columnKeys.get(column);
        // the row may not have an entry for this key, in which case the 
        // return value is null
        int index = rowData.getIndex(columnKey);
        if (index >= 0) {
            result = rowData.getValue(index);
        }
    }
    return result;
}

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