Package org.xtreemfs.babudb.index.reader

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

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        assertFalse(it.hasNext());
       
        it = diskIndex.rangeLookup(null, null, true);
        assertFalse(it.hasNext());
       
        it = diskIndex.rangeLookup("b".getBytes(), null, true);
        assertFalse(it.hasNext());
       
        it = diskIndex.rangeLookup(null, "x".getBytes(), true);
        assertFalse(it.hasNext());
       
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        assertFalse(it.hasNext());
       
        it = diskIndex.rangeLookup("b".getBytes(), null, true);
        assertFalse(it.hasNext());
       
        it = diskIndex.rangeLookup(null, "x".getBytes(), true);
        assertFalse(it.hasNext());
       
        it = diskIndex.rangeLookup("b".getBytes(), "x".getBytes(), true);
        assertFalse(it.hasNext());
       
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        assertFalse(it.hasNext());
       
        it = diskIndex.rangeLookup(null, "x".getBytes(), true);
        assertFalse(it.hasNext());
       
        it = diskIndex.rangeLookup("b".getBytes(), "x".getBytes(), true);
        assertFalse(it.hasNext());
       
        diskIndex.destroy();
    }
   
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        // 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(),
            false);
        assertIterator(it, keys, vals, 5, 2);
       
        // create an iterator with matching start buffer
        it = diskIndex.rangeLookup("brabbel".getBytes(), "g".getBytes(), false);
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        Iterator<Entry<byte[], byte[]>> it = diskIndex.rangeLookup("brabbel".getBytes(), "yagga".getBytes(),
            false);
        assertIterator(it, keys, vals, 5, 2);
       
        // create an iterator with matching start buffer
        it = diskIndex.rangeLookup("brabbel".getBytes(), "g".getBytes(), false);
        assertIterator(it, keys, vals, 2, 2);
       
        // create an iterator with matching end buffer
        it = diskIndex.rangeLookup("b".getBytes(), "brabbel".getBytes(), false);
        assertIterator(it, keys, vals, 1, 0);
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        // create an iterator with matching start buffer
        it = diskIndex.rangeLookup("brabbel".getBytes(), "g".getBytes(), false);
        assertIterator(it, keys, vals, 2, 2);
       
        // create an iterator with matching end buffer
        it = diskIndex.rangeLookup("b".getBytes(), "brabbel".getBytes(), false);
        assertIterator(it, keys, vals, 1, 0);
       
        // create an iterator w/o matching start and end buffers
        it = diskIndex.rangeLookup("blu".getBytes(), "yyz".getBytes(), false);
        assertIterator(it, keys, vals, 6, 1);
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        // create an iterator with matching end buffer
        it = diskIndex.rangeLookup("b".getBytes(), "brabbel".getBytes(), false);
        assertIterator(it, keys, vals, 1, 0);
       
        // create an iterator w/o matching start and end buffers
        it = diskIndex.rangeLookup("blu".getBytes(), "yyz".getBytes(), false);
        assertIterator(it, keys, vals, 6, 1);
       
        // check ranges outside the boundaries; should be empty
        it = diskIndex.rangeLookup("A".getBytes(), "Z".getBytes(), false);
        assertFalse(it.hasNext());
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        // create an iterator w/o matching start and end buffers
        it = diskIndex.rangeLookup("blu".getBytes(), "yyz".getBytes(), false);
        assertIterator(it, keys, vals, 6, 1);
       
        // check ranges outside the boundaries; should be empty
        it = diskIndex.rangeLookup("A".getBytes(), "Z".getBytes(), false);
        assertFalse(it.hasNext());
       
        it = diskIndex.rangeLookup("1".getBytes(), "2".getBytes(), false);
        assertFalse(it.hasNext());
       
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        // check ranges outside the boundaries; should be empty
        it = diskIndex.rangeLookup("A".getBytes(), "Z".getBytes(), false);
        assertFalse(it.hasNext());
       
        it = diskIndex.rangeLookup("1".getBytes(), "2".getBytes(), false);
        assertFalse(it.hasNext());
       
        diskIndex.destroy();
       
        // create a disk index from an empty index file
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        index.writeIndex(EMPTY_RESULT_SET);
       
        diskIndex = new DiskIndex(PATH1, new DefaultByteRangeComparator(), COMPRESSED, MMAPED);
       
        // check ranges; should all be empty
        it = diskIndex.rangeLookup(new byte[0], new byte[0], false);
        assertFalse(it.hasNext());
       
        it = diskIndex.rangeLookup(null, null, false);
        assertFalse(it.hasNext());
       
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