Examples of org.apache.cassandra.db.composites.CellName

Package org.apache.cassandra.db.composites

Examples of org.apache.cassandra.db.composites.CellName

org.apache.cassandra.db.composites.CellName
A CellName is a Composite, but for which, for the sake of CQL3, we distinguish different parts: a CellName has first a number of clustering components, followed by the CQL3 column name, and then possibly followed by a collection element part. The clustering prefix can itself be composed of multiple component. It can also be empty if the table has no clustering keys. In general, the CQL3 column name follows. However, some type of COMPACT STORAGE layout do not store the CQL3 column name in the cell name and so this part can be null (we call "dense" the cells whose name don't store the CQL3 column name). Lastly, if the cell is part of a CQL3 collection, we'll have a last component (a UUID for lists, an element for sets and a key for maps).

            {
                live = 1;
                return;
            }


            CellName current = cell.name();
            assert current.size() >= toGroup;


            if (previous != null)
            {
                boolean isSameGroup = previous.isStatic() == current.isStatic();
                if (isSameGroup)
                {
                    for (int i = 0; i < toGroup; i++)
                    {
                        if (type.subtype(i).compare(previous.get(i), current.get(i)) != 0)
                        {
                            isSameGroup = false;
                            break;
                        }
                    }

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        }


        public void execute(ByteBuffer rowKey, ColumnFamily cf, Composite prefix, UpdateParameters params) throws InvalidRequestException
        {
            // delete + append
            CellName name = cf.getComparator().create(prefix, column);
            cf.addAtom(params.makeTombstoneForOverwrite(name.slice()));
            Appender.doAppend(t, cf, prefix, column, params);
        }

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            List<Cell> existingList = params.getPrefetchedList(rowKey, column.name);
            int idx = ByteBufferUtil.toInt(index);
            if (idx < 0 || idx >= existingList.size())
                throw new InvalidRequestException(String.format("List index %d out of bound, list has size %d", idx, existingList.size()));


            CellName elementName = existingList.get(idx).name();
            if (value == null)
            {
                cf.addColumn(params.makeTombstone(elementName));
            }
            else

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            List<Cell> existingList = params.getPrefetchedList(rowKey, column.name);
            int idx = ByteBufferUtil.toInt(((Constants.Value)index).bytes);
            if (idx < 0 || idx >= existingList.size())
                throw new InvalidRequestException(String.format("List index %d out of bound, list has size %d", idx, existingList.size()));


            CellName elementName = existingList.get(idx).name();
            cf.addColumn(params.makeTombstone(elementName));
        }

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        if (container == null)
            return;


        for (Iterator<CellName> iterator = ((NamesQueryFilter) filter.filter).columns.iterator(); iterator.hasNext(); )
        {
            CellName filterColumn = iterator.next();
            Cell cell = container.getColumn(filterColumn);
            if (cell != null && cell.timestamp() > sstableTimestamp)
                iterator.remove();
        }
    }

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    public void insert(ByteBuffer rowKey, Cell cell, OpOrder.Group opGroup)
    {
        DecoratedKey valueKey = getIndexKeyFor(getIndexedValue(rowKey, cell));
        ColumnFamily cfi = ArrayBackedSortedColumns.factory.create(indexCfs.metadata, false, 1);
        CellName name = makeIndexColumnName(rowKey, cell);
        if (cell instanceof ExpiringCell)
        {
            ExpiringCell ec = (ExpiringCell) cell;
            cfi.addColumn(new BufferExpiringCell(name, ByteBufferUtil.EMPTY_BYTE_BUFFER, ec.timestamp(), ec.getTimeToLive(), ec.getLocalDeletionTime()));
        }

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                if (e == null)
                    throw new InvalidRequestException("Invalid null value for map access");
                return mapElementAppliesTo((MapType)type, current, rowPrefix, e, v.get(options), now);
            }


            CellName name = current.metadata().comparator.create(rowPrefix, column);
            // We are testing for collection equality, so we need to have the expected values *and* only those.
            ColumnSlice[] collectionSlice = new ColumnSlice[]{ name.slice() };
            // Filter live columns, this makes things simpler afterwards
            Iterator<Cell> iter = Iterators.filter(current.iterator(collectionSlice), new Predicate<Cell>()
            {
                public boolean apply(Cell c)
                {

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            return remaining.isEmpty();
        }


        private boolean mapElementAppliesTo(MapType type, ColumnFamily current, Composite rowPrefix, ByteBuffer element, ByteBuffer value, long now)
        {
            CellName name = current.getComparator().create(rowPrefix, column, element);
            Cell c = current.getColumn(name);
            return c != null && c.isLive(now) && type.values.compare(c.value(), value) == 0;
        }

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            // Note: for counters we must be careful to not add a column that was already there (to avoid overcount). That is
            // why we do the dance of avoiding to query any column we already have (it's also more efficient anyway)
            SortedSet<CellName> columns = new TreeSet<CellName>(cfs.getComparator());
            for (IndexExpression expr : clause)
            {
                CellName name = data.getComparator().cellFromByteBuffer(expr.column);
                if (data.getColumn(name) == null)
                    columns.add(name);
            }
            assert !columns.isEmpty();
            return new NamesQueryFilter(columns);

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                         ? rowKey
                         : ((CompositeType)data.metadata().getKeyValidator()).split(rowKey)[def.position()];
                case CLUSTERING_COLUMN:
                    return prefix.get(def.position());
                case REGULAR:
                    CellName cname = prefix == null
                                   ? data.getComparator().cellFromByteBuffer(def.name.bytes)
                                   : data.getComparator().create(prefix, def);


                    Cell cell = data.getColumn(cname);
                    return cell == null ? null : cell.value();

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com.stratio.cassandra.index.ClusteringKeyMapper

com.stratio.cassandra.index.ClusteringKeyMapperSorter

com.stratio.cassandra.index.FullKeyMapper

com.stratio.cassandra.index.FullKeyMapperDataRangeFilter

com.stratio.cassandra.index.FullKeyMapperRangeTombstoneFilter

com.stratio.cassandra.index.RegularCellsMapper

com.stratio.cassandra.index.RowComparatorNatural

com.stratio.cassandra.index.RowMapperWide

com.stratio.cassandra.index.RowService

com.stratio.cassandra.index.RowServiceWide

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