Examples of org.xtreemfs.babudb.index.LSMTree.rangeLookup()

org.xtreemfs.babudb.index.LSMTree.rangeLookup()
Performs a range lookup. Key-value paris are returned in an iterator in ascending key order, where only such keys are returned between from (inclusively) and to (inclusively), according to the comparator. @param from the first key (inclusively) @param to the last key (exclusively) @return an iterator with key-value pairs

        while (it.hasNext())
            assertEquals(itExpected.next(), it.next().getValue());
        assertFalse(itExpected.hasNext());
        
        // real range lookup, snapshot 1, ascending
        it = tree.rangeLookup("2".getBytes(), "5".getBytes(), snap1, true);
        itExpected = map1.subMap("2".getBytes(), "5".getBytes()).values().iterator();
        while (it.hasNext())
            assertEquals(itExpected.next(), it.next().getValue());
        assertFalse(itExpected.hasNext());

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        while (it.hasNext())
            assertEquals(itExpected.next(), it.next().getValue());
        assertFalse(itExpected.hasNext());
        
        // real range lookup, snapshot 1, descending
        it = tree.rangeLookup("5".getBytes(), "2".getBytes(), snap1, false);
        itExpected = map1.descendingMap().subMap("5".getBytes(), "2".getBytes()).values().iterator();
        while (it.hasNext())
            assertEquals(itExpected.next(), it.next().getValue());
        assertFalse(itExpected.hasNext());

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