Examples of org.jfree.data.DefaultKeyedValues

org.jfree.data.DefaultKeyedValues
An ordered list of (key, value) items. This class provides a default implementation of the {@link KeyedValues} interface.


    /**
     * Some checks for the getKey() methods.
     */
    public void testGetKey() {
        DefaultKeyedValues v1 = new DefaultKeyedValues();
        try {
            /* Comparable k = */ v1.getKey(-1);
            assertTrue(false);
        }
        catch (IndexOutOfBoundsException e) {
            // expected
        }
        try {
            /* Comparable k = */ v1.getKey(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("K2", v2.getKey(1));
    }

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    /**
     * Some checks for the getIndex() methods.
     */
    public void testGetIndex() {
        DefaultKeyedValues v1 = new DefaultKeyedValues();
        assertEquals(-1, v1.getIndex("K1"));


        DefaultKeyedValues v2 = new DefaultKeyedValues();
        v2.addValue("K1", new Integer(1));
        v2.addValue("K2", new Integer(2));
        v2.addValue("K3", new Integer(3));
        assertEquals(2, v2.getIndex("K3"));


        // try null
        boolean pass = false;
        try {
            v2.getIndex(null);
        }
        catch (IllegalArgumentException e) {
            pass = true;
        }
        assertTrue(pass);

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    /**
     * Another check for the getIndex(Comparable) method.
     */
    public void testGetIndex2() {
        DefaultKeyedValues v = new DefaultKeyedValues();
        assertEquals(-1, v.getIndex("K1"));
        v.addValue("K1", 1.0);
        assertEquals(0, v.getIndex("K1"));
        v.removeValue("K1");
        assertEquals(-1, v.getIndex("K1"));
    }

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    }
    /**
     * Some checks for the addValue() method.
     */
    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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    /**
     * Some checks for the insertValue() method.
     */
    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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    /**
     * Some checks for the clone() method.
     */
    public void testCloning() {
        DefaultKeyedValues v1 = new DefaultKeyedValues();
        v1.addValue("V1", new Integer(1));
        v1.addValue("V2", null);
        v1.addValue("V3", new Integer(3));
        DefaultKeyedValues v2 = null;
        try {
            v2 = (DefaultKeyedValues) v1.clone();
        }
        catch (CloneNotSupportedException e) {
            System.err.println("Failed to clone.");
        }
        assertTrue(v1 != v2);
        assertTrue(v1.getClass() == v2.getClass());
        assertTrue(v1.equals(v2));


        // confirm that the clone is independent of the original
        v2.setValue("V1", new Integer(44));
        assertFalse(v1.equals(v2));
    }

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    /**
     * Check that inserting and retrieving values works as expected.
     */
    public void testInsertAndRetrieve() {


        DefaultKeyedValues data = new DefaultKeyedValues();
        data.addValue("A", new Double(1.0));
        data.addValue("B", new Double(2.0));
        data.addValue("C", new Double(3.0));
        data.addValue("D", null);


        // check key order
        assertEquals(data.getKey(0), "A");
        assertEquals(data.getKey(1), "B");
        assertEquals(data.getKey(2), "C");
        assertEquals(data.getKey(3), "D");


        // check retrieve value by key
        assertEquals(data.getValue("A"), new Double(1.0));
        assertEquals(data.getValue("B"), new Double(2.0));
        assertEquals(data.getValue("C"), new Double(3.0));
        assertEquals(data.getValue("D"), null);


        // check retrieve value by index
        assertEquals(data.getValue(0), new Double(1.0));
        assertEquals(data.getValue(1), new Double(2.0));
        assertEquals(data.getValue(2), new Double(3.0));
        assertEquals(data.getValue(3), null);


    }

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    /**
     * Some tests for the removeValue() method.
     */
    public void testRemoveValue() {
        DefaultKeyedValues data = new DefaultKeyedValues();
        data.addValue("A", new Double(1.0));
        data.addValue("B", null);
        data.addValue("C", new Double(3.0));
        data.addValue("D", new Double(2.0));
        assertEquals(1, data.getIndex("B"));
        data.removeValue("B");
        assertEquals(-1, data.getIndex("B"));


        boolean pass = false;
        try {
            data.removeValue("XXX");
        }
        catch (UnknownKeyException e) {
            pass = true;
        }
        assertTrue(pass);

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    /**
     * Tests sorting of data by key (ascending).
     */
    public void testSortByKeyAscending() {


        DefaultKeyedValues data = new DefaultKeyedValues();
        data.addValue("C", new Double(1.0));
        data.addValue("B", null);
        data.addValue("D", new Double(3.0));
        data.addValue("A", new Double(2.0));


        data.sortByKeys(SortOrder.ASCENDING);


        // check key order
        assertEquals(data.getKey(0), "A");
        assertEquals(data.getKey(1), "B");
        assertEquals(data.getKey(2), "C");
        assertEquals(data.getKey(3), "D");


        // check retrieve value by key
        assertEquals(data.getValue("A"), new Double(2.0));
        assertEquals(data.getValue("B"), null);
        assertEquals(data.getValue("C"), new Double(1.0));
        assertEquals(data.getValue("D"), new Double(3.0));


        // check retrieve value by index
        assertEquals(data.getValue(0), new Double(2.0));
        assertEquals(data.getValue(1), null);
        assertEquals(data.getValue(2), new Double(1.0));
        assertEquals(data.getValue(3), new Double(3.0));


    }

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    /**
     * Tests sorting of data by key (descending).
     */
    public void testSortByKeyDescending() {


        DefaultKeyedValues data = new DefaultKeyedValues();
        data.addValue("C", new Double(1.0));
        data.addValue("B", null);
        data.addValue("D", new Double(3.0));
        data.addValue("A", new Double(2.0));


        data.sortByKeys(SortOrder.DESCENDING);


        // check key order
        assertEquals(data.getKey(0), "D");
        assertEquals(data.getKey(1), "C");
        assertEquals(data.getKey(2), "B");
        assertEquals(data.getKey(3), "A");


        // check retrieve value by key
        assertEquals(data.getValue("A"), new Double(2.0));
        assertEquals(data.getValue("B"), null);
        assertEquals(data.getValue("C"), new Double(1.0));
        assertEquals(data.getValue("D"), new Double(3.0));


        // check retrieve value by index
        assertEquals(data.getValue(0), new Double(3.0));
        assertEquals(data.getValue(1), new Double(1.0));
        assertEquals(data.getValue(2), null);
        assertEquals(data.getValue(3), new Double(2.0));


    }

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