Package org.xtreemfs.babudb.index.reader

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

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        // 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());
       
        it = diskIndex.rangeLookup("b".getBytes(), null, false);
        assertFalse(it.hasNext());
       
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        assertFalse(it.hasNext());
       
        it = diskIndex.rangeLookup(null, null, false);
        assertFalse(it.hasNext());
       
        it = diskIndex.rangeLookup("b".getBytes(), null, false);
        assertFalse(it.hasNext());
       
        it = diskIndex.rangeLookup(null, "x".getBytes(), false);
        assertFalse(it.hasNext());
       
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        assertFalse(it.hasNext());
       
        it = diskIndex.rangeLookup("b".getBytes(), null, false);
        assertFalse(it.hasNext());
       
        it = diskIndex.rangeLookup(null, "x".getBytes(), false);
        assertFalse(it.hasNext());
       
        it = diskIndex.rangeLookup("b".getBytes(), "x".getBytes(), false);
        assertFalse(it.hasNext());
       
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        assertFalse(it.hasNext());
       
        it = diskIndex.rangeLookup(null, "x".getBytes(), false);
        assertFalse(it.hasNext());
       
        it = diskIndex.rangeLookup("b".getBytes(), "x".getBytes(), false);
        assertFalse(it.hasNext());
       
        diskIndex.destroy();
    }
   
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            MMAPED);
       
        {
            // look up the complete list of elements
            Iterator<Entry<byte[], byte[]>> mapIt = map.entrySet().iterator();
            Iterator<Entry<byte[], byte[]>> indexIt = diskIndex.rangeLookup(null, null, true);
           
            while (indexIt.hasNext() || mapIt.hasNext()) {
               
                Entry<byte[], byte[]> next = indexIt.next();
                String indexKey = new String(next.getKey());
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            // look up a range of elements
            byte[] from = "e".getBytes();
            byte[] to = "f".getBytes();
           
            Iterator<Entry<byte[], byte[]>> mapIt = map.subMap(from, to).entrySet().iterator();
            Iterator<Entry<byte[], byte[]>> indexIt = diskIndex.rangeLookup(from, to, true);
           
            while (indexIt.hasNext() || mapIt.hasNext()) {
               
                Entry<byte[], byte[]> next = indexIt.next();
                String indexKey = new String(next.getKey());
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            // look up another range of elements
            byte[] from = "fd".getBytes();
            byte[] to = "sa".getBytes();
           
            Iterator<Entry<byte[], byte[]>> mapIt = map.subMap(from, to).entrySet().iterator();
            Iterator<Entry<byte[], byte[]>> indexIt = diskIndex.rangeLookup(from, to, true);
           
            while (indexIt.hasNext() || mapIt.hasNext()) {
               
                Entry<byte[], byte[]> next = indexIt.next();
                String indexKey = new String(next.getKey());
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            MMAPED);
       
        {
            // look up the complete list of elements
            Iterator<Entry<byte[], byte[]>> mapIt = map.descendingMap().entrySet().iterator();
            Iterator<Entry<byte[], byte[]>> indexIt = diskIndex.rangeLookup(null, null, false);
           
            while (indexIt.hasNext() || mapIt.hasNext()) {
               
                Entry<byte[], byte[]> next = indexIt.next();
                String indexKey = new String(next.getKey());
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            byte[] from = "e".getBytes();
            byte[] to = "f".getBytes();
           
            Iterator<Entry<byte[], byte[]>> mapIt = map.descendingMap().subMap(to, from).entrySet()
                    .iterator();
            Iterator<Entry<byte[], byte[]>> indexIt = diskIndex.rangeLookup(from, to, false);
           
            while (mapIt.hasNext())
                System.out.println(new String(mapIt.next().getKey()));
           
            System.out.println(" --------- ");
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            byte[] from = "fd".getBytes();
            byte[] to = "sa".getBytes();
           
            Iterator<Entry<byte[], byte[]>> mapIt = map.descendingMap().subMap(to, from).entrySet()
                    .iterator();
            Iterator<Entry<byte[], byte[]>> indexIt = diskIndex.rangeLookup(from, to, false);
           
            while (indexIt.hasNext() || mapIt.hasNext()) {
               
                Entry<byte[], byte[]> next = indexIt.next();
                String indexKey = new String(next.getKey());
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