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.reader.DiskIndex.rangeLookup()

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

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

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

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

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

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

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

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

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

            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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