Example usage for org.jfree.data KeyedObjects getKey

Introduction

In this page you can find the example usage for org.jfree.data KeyedObjects getKey.

Prototype

public Comparable getKey(int index) 

Source Link

Document

Returns the key at the specified position in the list.

Usage

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

/**
 * Simple checks for the getKey(int) method.
 *///  w w w  .j  a va  2s .  co  m
@Test
public void testGetKey() {
    // retrieve an item
    KeyedObjects ko1 = new KeyedObjects();
    ko1.addObject("Key 1", "Object 1");
    ko1.addObject("Key 2", null);
    ko1.addObject("Key 3", "Object 2");
    assertEquals("Key 1", ko1.getKey(0));
    assertEquals("Key 2", ko1.getKey(1));
    assertEquals("Key 3", ko1.getKey(2));

    // request with a negative index
    boolean pass = false;
    try {
        ko1.getKey(-1);
    } catch (IndexOutOfBoundsException e) {
        pass = true;
    }
    assertTrue(pass);

    // request width index == itemCount
    pass = false;
    try {
        ko1.getKey(3);
    } catch (IndexOutOfBoundsException e) {
        pass = true;
    }
    assertTrue(pass);
}

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

/**
 * Check that inserting and retrieving values works as expected.
 *//*from  www  .  ja  v  a  2 s  .c  o  m*/
@Test
public void testInsertAndRetrieve() {

    KeyedObjects data = new KeyedObjects();
    data.addObject("A", new Double(1.0));
    data.addObject("B", new Double(2.0));
    data.addObject("C", new Double(3.0));
    data.addObject("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.getObject("A"), new Double(1.0));
    assertEquals(data.getObject("B"), new Double(2.0));
    assertEquals(data.getObject("C"), new Double(3.0));
    assertEquals(data.getObject("D"), null);

    boolean pass = false;
    try {
        data.getObject("Not a key");
    } catch (UnknownKeyException e) {
        pass = true;
    }
    assertTrue(pass);

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

}

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

/**
 * Tests this object for equality with an arbitrary object.
 *
 * @param obj  the object (<code>null</code> permitted).
 *
 * @return A boolean./*from  ww  w .j  a va2s.co  m*/
 */
@Override
public boolean equals(Object obj) {

    if (obj == this) {
        return true;
    }
    if (!(obj instanceof KeyedObjects)) {
        return false;
    }
    KeyedObjects that = (KeyedObjects) obj;
    int count = getItemCount();
    if (count != that.getItemCount()) {
        return false;
    }

    for (int i = 0; i < count; i++) {
        Comparable k1 = getKey(i);
        Comparable k2 = that.getKey(i);
        if (!k1.equals(k2)) {
            return false;
        }
        Object o1 = getObject(i);
        Object o2 = that.getObject(i);
        if (o1 == null) {
            if (o2 != null) {
                return false;
            }
        } else {
            if (!o1.equals(o2)) {
                return false;
            }
        }
    }
    return true;

}

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

/**
 * Simple checks for the getKey(int) method.
 *//*from   w  w w . j a  v a  2  s  .  c om*/
public void testGetKey() {
    // retrieve an item
    KeyedObjects ko1 = new KeyedObjects();
    ko1.addObject("Key 1", "Object 1");
    ko1.addObject("Key 2", null);
    ko1.addObject("Key 3", "Object 2");
    assertEquals("Key 1", ko1.getKey(0));
    assertEquals("Key 2", ko1.getKey(1));
    assertEquals("Key 3", ko1.getKey(2));

    // request with a negative index
    boolean pass = false;
    try {
        ko1.getKey(-1);
    } catch (IndexOutOfBoundsException e) {
        pass = true;
    }
    assertTrue(pass);

    // request width index == itemCount
    pass = false;
    try {
        ko1.getKey(3);
    } catch (IndexOutOfBoundsException e) {
        pass = true;
    }
    assertTrue(pass);
}

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

/**
 * Check that inserting and retrieving values works as expected.
 *///ww  w. j  a va2 s.c  om
public void testInsertAndRetrieve() {

    KeyedObjects data = new KeyedObjects();
    data.addObject("A", new Double(1.0));
    data.addObject("B", new Double(2.0));
    data.addObject("C", new Double(3.0));
    data.addObject("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.getObject("A"), new Double(1.0));
    assertEquals(data.getObject("B"), new Double(2.0));
    assertEquals(data.getObject("C"), new Double(3.0));
    assertEquals(data.getObject("D"), null);

    boolean pass = false;
    try {
        data.getObject("Not a key");
    } catch (UnknownKeyException e) {
        pass = true;
    }
    assertTrue(pass);

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

}

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

/**
 * Tests sorting of data by key (descending).
 *///from   w w w .  j  a  v a2s  .  co m
public void testSortByKeyDescending() {
    KeyedObjects data = new KeyedObjects();
    data.addObject("C", new Double(1.0));
    data.addObject("B", null);
    data.addObject("D", new Double(3.0));
    data.addObject("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.getObject("A"), new Double(2.0));
    assertEquals(data.getObject("B"), null);
    assertEquals(data.getObject("C"), new Double(1.0));
    assertEquals(data.getObject("D"), new Double(3.0));

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

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

/**
 * Tests sorting of data by value (ascending).
 *///from  w ww. j  a v a 2s .  c  o m
public void testSortByValueAscending() {
    KeyedObjects data = new KeyedObjects();
    data.addObject("C", new Double(1.0));
    data.addObject("B", null);
    data.addObject("D", new Double(3.0));
    data.addObject("A", new Double(2.0));

    data.sortByObjects(SortOrder.ASCENDING);

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

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

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

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

/**
 * Tests sorting of data by key (descending).
 *//*from  w w w  .  ja  v  a  2s . co  m*/
public void testSortByValueDescending() {
    KeyedObjects data = new KeyedObjects();
    data.addObject("C", new Double(1.0));
    data.addObject("B", null);
    data.addObject("D", new Double(3.0));
    data.addObject("A", new Double(2.0));

    data.sortByObjects(SortOrder.DESCENDING);

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

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

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

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

/**
 * Tests sorting of data by key (ascending).
 *//*from   w w w  .  j  av  a2  s.com*/
public void testSortByKeyAscending() {
    KeyedObjects data = new KeyedObjects();
    data.addObject("C", new Double(1.0));
    data.addObject("B", null);
    data.addObject("D", new Double(3.0));
    data.addObject("A", new Double(2.0));

    data.sortByKeys(SortOrder.ASCENDING);

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

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

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

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