List of descendingMap() Examples

Examples of descendingMap()

edu.stanford.ppl.concurrent.SnapTreeMap.descendingMap()
java.util.NavigableMap.descendingMap()
Returns a reverse order view of the mappings contained in this map. The descending map is backed by this map, so changes to the map are reflected in the descending map, and vice-versa. If either map is modified while an iteration over a collection view of either map is in progress (except through the iterator's own {@code remove}operation), the results of the iteration are undefined.
The returned map has an ordering equivalent to {@link Collections#reverseOrder(Comparator) Collections.reverseOrder}(comparator()). The expression {@code m.descendingMap().descendingMap()} returns aview of {@code m} essentially equivalent to {@code m}. @return a reverse order view of this map
java.util.TreeMap.descendingMap()
@since 1.6
java.util.concurrent.ConcurrentNavigableMap.descendingMap()
Returns a reverse order view of the mappings contained in this map. The descending map is backed by this map, so changes to the map are reflected in the descending map, and vice-versa.
The returned map has an ordering equivalent to {@link Collections#reverseOrder(Comparator) Collections.reverseOrder}{@code (comparator())}. The expression {@code m.descendingMap().descendingMap()} returns aview of {@code m} essentially equivalent to {@code m}. @return a reverse order view of this map

Examples of edu.stanford.ppl.concurrent.SnapTreeMap.descendingMap()

    /**
     * descendingEntrySet contains all pairs
     */
    public void testDescendingEntrySet() {
        SnapTreeMap map = map5();
        Set s = map.descendingMap().entrySet();
        assertEquals(5, s.size());
        Iterator it = s.iterator();
        while (it.hasNext()) {
            Map.Entry e = (Map.Entry) it.next();
            assertTrue(

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Examples of edu.stanford.ppl.concurrent.SnapTreeMap.descendingMap()

    /**
     *  descendingEntrySet.toArray contains all entries
     */
    public void testDescendingEntrySetToArray() {
        SnapTreeMap map = map5();
        Set s = map.descendingMap().entrySet();
        Object[] ar = s.toArray();
        assertEquals(5, ar.length);
        for (int i = 0; i < 5; ++i) {
            assertTrue(map.containsKey(((Map.Entry)(ar[i])).getKey()));
            assertTrue(map.containsValue(((Map.Entry)(ar[i])).getValue()));

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Examples of edu.stanford.ppl.concurrent.SnapTreeMap.descendingMap()

        map.put(m3, "C");
        map.put(m2, "B");
        map.put(m4, "D");
        assertFalse(map.isEmpty());
        assertEquals(5, map.size());
        return map.descendingMap();
    }


    private static ConcurrentNavigableMap map0() {
        SnapTreeMap map = new SnapTreeMap();
        assertTrue(map.isEmpty());

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Examples of java.util.NavigableMap.descendingMap()

                .toString()));
        assertEquals(objArray[102].toString(), map.floorKey(objArray[103]
                .toString()));
        assertEquals(objArray[102].toString(), map.floorKey(objArray[104]
                .toString()));
        map = map.descendingMap();
        assertEquals(null, map.higherKey(objArray[101].toString()));
        assertEquals(null, map.higherKey(objArray[102].toString()));
        assertEquals(objArray[102].toString(), map.higherKey(objArray[103]
                .toString()));
        assertEquals(objArray[102].toString(), map.higherKey(objArray[104]

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Examples of java.util.NavigableMap.descendingMap()

        assertFalse(map.containsKey(objArray[100].toString()));
        assertFalse(map.containsKey(objArray[10].toString()));
        assertFalse(map.containsKey(objArray[101].toString()));
        assertFalse(map.containsKey(objArray[102].toString()));
        assertFalse(map.containsKey(objArray[1].toString()));
        map = map.descendingMap();
        assertFalse(map.containsKey(objArray[100].toString()));
        assertFalse(map.containsKey(objArray[10].toString()));
        assertFalse(map.containsKey(objArray[101].toString()));
        assertFalse(map.containsKey(objArray[102].toString()));
        assertFalse(map.containsKey(objArray[1].toString()));

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Examples of java.util.NavigableMap.descendingMap()

                objArray[103].toString(), false);
        assertFalse(map.containsKey(objArray[100].toString()));
        assertFalse(map.containsKey(objArray[104].toString()));
        assertFalse(map.containsKey(objArray[101].toString()));
        assertTrue(map.containsKey(objArray[102].toString()));
        map = map.descendingMap();
        assertFalse(map.containsKey(objArray[100].toString()));
        assertFalse(map.containsKey(objArray[104].toString()));
        assertFalse(map.containsKey(objArray[101].toString()));
        assertTrue(map.containsKey(objArray[102].toString()));
    }

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Examples of java.util.NavigableMap.descendingMap()

        try {
            assertEquals(0, map.tailMap(objArray[101].toString()).size());
            fail("should throw IAE");
        } catch (IllegalArgumentException e) {
        }
        map = map.descendingMap();
        try {
            map = map.subMap(objArray[103].toString(), true, objArray[102]
                    .toString(), true);
            fail("should throw IAE");
        } catch (IllegalArgumentException e) {

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Examples of java.util.NavigableMap.descendingMap()

        assertNull(map.higherKey(objArray[111].toString()));
        assertNull(map.ceilingKey(objArray[1].toString()));
        assertNull(map.floorKey(objArray[1].toString()));
        assertNull(map.lowerKey(objArray[1].toString()));
        assertNull(map.higherKey(objArray[1].toString()));
        map = map.descendingMap();
        assertNull(map.ceilingKey(objArray[100].toString()));
        assertNull(map.floorKey(objArray[100].toString()));
        assertNull(map.lowerKey(objArray[100].toString()));
        assertNull(map.higherKey(objArray[100].toString()));
        assertNull(map.ceilingKey(objArray[111].toString()));

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Examples of java.util.NavigableMap.descendingMap()

                objArray[103].toString(), false);
        assertTrue(map.containsKey(objArray[102].toString()));
        assertFalse(map.containsKey(objArray[101].toString()));
        assertFalse(map.containsKey(objArray[103].toString()));
        assertFalse(map.containsKey(objArray[104].toString()));
        map = map.descendingMap();
        assertTrue(map.containsKey(objArray[102].toString()));
        assertFalse(map.containsKey(objArray[101].toString()));
        assertFalse(map.containsKey(objArray[103].toString()));
        assertFalse(map.containsKey(objArray[104].toString()));
        map = tm.subMap(objArray[102].toString(), true, objArray[102]

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Examples of java.util.NavigableMap.descendingMap()

                .toString(), false);
        assertFalse(map.containsKey(objArray[102].toString()));
        assertFalse(map.containsKey(objArray[101].toString()));
        assertFalse(map.containsKey(objArray[103].toString()));
        assertFalse(map.containsKey(objArray[104].toString()));
        map = map.descendingMap();
        assertFalse(map.containsKey(objArray[102].toString()));
        assertFalse(map.containsKey(objArray[101].toString()));
        assertFalse(map.containsKey(objArray[103].toString()));
        assertFalse(map.containsKey(objArray[104].toString()));
    }

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