Package org.apache.cassandra.db

Examples of org.apache.cassandra.db.IColumn

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            totalRead++;
            KeySlice ks = rows.get(i++);
            SortedMap<ByteBuffer, IColumn> map = new TreeMap<ByteBuffer, IColumn>(comparator);
            for (ColumnOrSuperColumn cosc : ks.columns)
            {
                IColumn column = unthriftify(cosc);
                map.put(column.name(), column);
            }
            return new Pair<ByteBuffer, SortedMap<ByteBuffer, IColumn>>(ks.key, map);
        }
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            {
                file.seek(columnBegin + indexInfo.offset);
                // TODO only completely deserialize columns we are interested in
                while (file.getFilePointer() < columnBegin + indexInfo.offset + indexInfo.width)
                {
                    final IColumn column = cf.getColumnSerializer().deserialize(file);
                    // we check vs the original Set, not the filtered List, for efficiency
                    if (columnNames.contains(column.name()))
                    {
                        cf.addColumn(column);
                    }
                }
            }
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        if (reader == null)
            return endOfData();

        while (true)
        {
            IColumn column = reader.pollColumn();
            if (column == null)
                return endOfData();
            if (isColumnNeeded(column))
                return column;
        }
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            return emptyColumnFamily;
        }

        public IColumn pollColumn()
        {
            IColumn column = blockColumns.poll();
            if (column == null)
            {
                try
                {
                    if (getNextBlock())
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            boolean outOfBounds = false;

            file.seek(columnStartPosition + curColPosition.offset);
            while (file.getFilePointer() < columnStartPosition + curColPosition.offset + curColPosition.width && !outOfBounds)
            {
                IColumn column = emptyColumnFamily.getColumnSerializer().deserialize(file);
                if (reversed)
                    blockColumns.addFirst(column);
                else
                    blockColumns.addLast(column);

                /* see if we can stop seeking. */
                if (!reversed && finishColumn.length > 0)
                    outOfBounds = comparator.compare(column.name(), finishColumn) >= 0;
                else if (reversed && startColumn.length > 0)
                    outOfBounds = comparator.compare(column.name(), startColumn) >= 0;
                   
                if (outOfBounds)
                    break;
            }

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        // Verify results
        SSTableReader reader = SSTableAccessor.getSSTableReader(tempSS.getPath(), DatabaseDescriptor.getPartitioner());
        NamesQueryFilter qf = new NamesQueryFilter("rowA", new QueryPath("Super4", null, null), "superA".getBytes());
        ColumnFamily cf = qf.getSSTableColumnIterator(reader).getColumnFamily();
        IColumn superCol = cf.getColumn("superA".getBytes());
        assert Arrays.equals(superCol.getSubColumn("colAA".getBytes()).value(), hexToBytes("76616c75654141"));
    }
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            totalRead++;
            KeySlice ks = rows.get(i++);
            SortedMap<ByteBuffer, IColumn> map = new TreeMap<ByteBuffer, IColumn>(comparator);
            for (ColumnOrSuperColumn cosc : ks.columns)
            {
                IColumn column = unthriftify(cosc);
                map.put(column.name(), column);
            }
            return new Pair<ByteBuffer, SortedMap<ByteBuffer, IColumn>>(ks.key, map);
        }
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                while (true)
                {
                    if (columns.hasNext())
                    {
                        ColumnOrSuperColumn cosc = columns.next();
                        IColumn column = unthriftify(cosc);
                        ImmutableSortedMap<ByteBuffer, IColumn> map = ImmutableSortedMap.of(column.name(), column);
                        return Pair.<ByteBuffer, SortedMap<ByteBuffer, IColumn>>create(currentRow.key, map);
                    }

                    if (!rows.hasNext())
                        return endOfData();
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    {
        int columns = file.readInt();
        int n = 0;
        for (int i = 0; i < columns; i++)
        {
            IColumn column = cf.getColumnSerializer().deserialize(file);
            if (columnNames.contains(column.name()))
            {
                cf.addColumn(column);
                if (n++ > filteredColumnNames.size())
                    break;
            }
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            file.reset(mark);
            FileUtils.skipBytesFully(file, indexInfo.offset);
            // TODO only completely deserialize columns we are interested in
            while (file.bytesPastMark(mark) < indexInfo.offset + indexInfo.width)
            {
                IColumn column = cf.getColumnSerializer().deserialize(file);
                // we check vs the original Set, not the filtered List, for efficiency
                if (columnNames.contains(column.name()))
                {
                    cf.addColumn(column);
                }
            }
        }
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