List of rangeLookup() Examples

Examples of rangeLookup()

org.xtreemfs.babudb.api.database.Database.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
org.xtreemfs.babudb.index.reader.DiskIndex.rangeLookup()

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

        while (it.hasNext())
            assertEquals(itExpected.next(), it.next().getValue());
        assertFalse(itExpected.hasNext());
        
        // real range lookup, current tree, descending
        it = tree.rangeLookup("5".getBytes(), "2".getBytes(), false);
        itExpected = map3.descendingMap().subMap("5".getBytes(), "2".getBytes()).values().iterator();
        while (it.hasNext())
            assertEquals(itExpected.next(), it.next().getValue());
        assertFalse(itExpected.hasNext());

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

        while (it.hasNext())
            assertEquals(itExpected.next(), it.next().getValue());
        assertFalse(itExpected.hasNext());
        
        // real (empty) range lookup, current tree, ascending
        it = tree.rangeLookup("XXXXXXXX".getBytes(), "XXXXXXXY".getBytes(), true);
        itExpected = map3.subMap("XXXXXXXX".getBytes(), true, "XXXXXXXY".getBytes(), true).values()
                .iterator();
        while (it.hasNext())
            assertEquals(itExpected.next(), it.next().getValue());
        assertFalse(itExpected.hasNext());

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

        while (it.hasNext())
            assertEquals(itExpected.next(), it.next().getValue());
        assertFalse(itExpected.hasNext());
        
        // real (empty) range lookup, current tree, descending
        it = tree.rangeLookup("XXXXXXXY".getBytes(), "XXXXXXXX".getBytes(), false);
        itExpected = map3.descendingMap().subMap("XXXXXXXY".getBytes(), true, "XXXXXXXX".getBytes(), true)
                .values().iterator();
        while (it.hasNext())
            assertEquals(itExpected.next(), it.next().getValue());
        assertFalse(itExpected.hasNext());

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

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

        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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Examples of org.xtreemfs.babudb.index.reader.DiskIndex.rangeLookup()

        DiskIndex index = indexMap.get(indexId);
        if (index == null)
            throw new BabuDBException(ErrorCode.NO_SUCH_INDEX, "index " + indexId + " does not exist");
        
        byte[][] range = index.getComparator().prefixToRange(key, true);
        return index.rangeLookup(range[0], range[1], ascending);
    }
    
    @Override
    public ResultSet<byte[], byte[]> directRangeLookup(int indexId, byte[] from, byte[] to, boolean ascending) throws BabuDBException {

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Examples of org.xtreemfs.babudb.index.reader.DiskIndex.rangeLookup()

        
        DiskIndex index = indexMap.get(indexId);
        if (index == null)
            throw new BabuDBException(ErrorCode.NO_SUCH_INDEX, "index " + indexId + " does not exist");
        
        return index.rangeLookup(from, to, ascending);
    }
    
    @Override
    public void shutdown() throws BabuDBException {
        try {

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Examples of org.xtreemfs.babudb.index.reader.DiskIndex.rangeLookup()

        // read the disk index
        DiskIndex diskIndex = new DiskIndex(PATH2, DefaultByteRangeComparator.getInstance(), COMPRESSED,
            MMAPED);
        
        // create an iterator w/ matching start and end buffers
        Iterator<Entry<byte[], byte[]>> it = diskIndex.rangeLookup("brabbel".getBytes(), "yagga".getBytes(),
            true);
        assertIterator(it, keys, vals, 1, 4);
        
        // create an iterator with matching start buffer
        it = diskIndex.rangeLookup("brabbel".getBytes(), "g".getBytes(), true);

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Examples of org.xtreemfs.babudb.index.reader.DiskIndex.rangeLookup()

        Iterator<Entry<byte[], byte[]>> it = diskIndex.rangeLookup("brabbel".getBytes(), "yagga".getBytes(),
            true);
        assertIterator(it, keys, vals, 1, 4);
        
        // create an iterator with matching start buffer
        it = diskIndex.rangeLookup("brabbel".getBytes(), "g".getBytes(), true);
        assertIterator(it, keys, vals, 1, 2);
        
        // create an iterator with matching end buffer
        it = diskIndex.rangeLookup("b".getBytes(), "brabbel".getBytes(), true);
        assertIterator(it, keys, vals, 0, 0);

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Examples of org.xtreemfs.babudb.index.reader.DiskIndex.rangeLookup()

        // create an iterator with matching start buffer
        it = diskIndex.rangeLookup("brabbel".getBytes(), "g".getBytes(), true);
        assertIterator(it, keys, vals, 1, 2);
        
        // create an iterator with matching end buffer
        it = diskIndex.rangeLookup("b".getBytes(), "brabbel".getBytes(), true);
        assertIterator(it, keys, vals, 0, 0);
        
        // create an iterator w/o matching start and end buffers
        it = diskIndex.rangeLookup("blu".getBytes(), "yyz".getBytes(), true);
        assertIterator(it, keys, vals, 1, 6);

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