Package org.apache.cassandra.db

Examples of org.apache.cassandra.db.IColumn

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        Iterator<IColumn> iter = cols.iterator();
        while (iter.hasNext())
        {
            json.append("[");
            IColumn column = iter.next();
            json.append(quote(bytesToHex(column.name())));
            json.append(", ");
            json.append(quote(bytesToHex(column.value())));
            json.append(", ");
            json.append(column.timestamp());
            json.append(", ");
            json.append(column.isMarkedForDelete());
            json.append("]");
            if (iter.hasNext())
                json.append(", ");
        }
       
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            json.append("{ ");

            Iterator<IColumn> iter = cf.getSortedColumns().iterator();
            while (iter.hasNext())
            {
                IColumn column = iter.next();
                json.append(asKey(bytesToHex(column.name())));
                json.append("{");
                json.append(asKey("deletedAt"));
                json.append(column.getMarkedForDeleteAt());
                json.append(", ");
                json.append(asKey("subColumns"));
                json.append(serializeColumns(column.getSubColumns(), comparator));
                json.append("}");
                if (iter.hasNext())
                    json.append(", ");
            }
           
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            return emptyColumnFamily;
        }

        public IColumn pollColumn()
        {
            IColumn column = blockColumns.poll();
            if (column == null)
            {
                try
                {
                    if (getNextBlock())
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            file.reset();
            long curOffset = file.skipBytes((int) curColPosition.offset);
            assert curOffset == curColPosition.offset;
            while (file.bytesPastMark() < 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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        Iterator<IColumn> iter = cols.iterator();
        while (iter.hasNext())
        {
            json.append("[");
            IColumn column = iter.next();
            json.append(quote(bytesToHex(column.name())));
            json.append(", ");
            json.append(quote(bytesToHex(column.value())));
            json.append(", ");
            json.append(column.timestamp());
            json.append(", ");
            json.append(column.isMarkedForDelete());
            json.append("]");
            if (iter.hasNext())
                json.append(", ");
        }
       
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            json.append("{ ");

            Iterator<IColumn> iter = cf.getSortedColumns().iterator();
            while (iter.hasNext())
            {
                IColumn column = iter.next();
                json.append(asKey(bytesToHex(column.name())));
                json.append("{");
                json.append(asKey("deletedAt"));
                json.append(column.getMarkedForDeleteAt());
                json.append(", ");
                json.append(asKey("subColumns"));
                json.append(serializeColumns(column.getSubColumns(), comparator));
                json.append("}");
                if (iter.hasNext())
                    json.append(", ");
            }
           
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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 Pair.create(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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        {
            while (row.hasNext())
            {
                SuperColumn scol = (SuperColumn)row.next();
                assert scol instanceof IColumn;
                IColumn column = (IColumn)scol;
                writeKey(out, comparator.getString(column.name()));
                out.print("{");
                writeMeta(out, scol);
                writeKey(out, "subColumns");
                out.print("[");
                serializeIColumns(column.getSubColumns().iterator(), out, columnFamily.getSubComparator(), cfMetaData);
                out.print("]");
                out.print("}");

                if (row.hasNext())
                    out.print(", ");
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                {
                    Collection<IColumn> columns = null;
                    if (superColumnKey_ != null)
                    {
                        // this is the super column case
                        IColumn column = cfamily.getColumn(superColumnKey);
                        if (column != null)
                            columns = column.getSubColumns();
                    }
                    else
                    {
                        columns = cfamily.getAllColumns();
                    }

                    if (columns != null && columns.size() > 0)
                    {
                        for (IColumn column : columns)
                        {
                            Map<String, String> result = new HashMap<String, String>();
                           
                            result.put(cfMetaData_.n_columnKey, column.name());
                            result.put(cfMetaData_.n_columnValue, new String(column.value()));
                            result.put(cfMetaData_.n_columnTimestamp, Long.toString(column.timestamp()));
                           
                            rows.add(result);
                        }
                    }
                }
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