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).

    {
        private int idx;


        public boolean isDeleted(Cell cell)
        {
            CellName name = cell.name();
            long timestamp = cell.timestamp();


            while (idx < size)
            {
                int cmp = comparator.compare(name, starts[idx]);

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        // (don't need to worry about cfNew containing Columns that are shadowed by
        // the delete tombstone, since cfNew was generated by CF.resolve, which
        // takes care of those for us.)
        for (Cell cellExternal : cfComposite)
        {
            CellName cName = cellExternal.name();
            Cell cellInternal = getColumn(cName);
            if (cellInternal == null)
            {
                cfDiff.addColumn(cellExternal);
            }

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            return false;


        Composite low = isReversed() ? finish() : start();
        Composite high = isReversed() ? start() : finish();


        CellName first = cf.iterator(ColumnSlice.ALL_COLUMNS_ARRAY).next().name();
        CellName last = cf.reverseIterator(ColumnSlice.ALL_COLUMNS_ARRAY).next().name();


        return cf.getComparator().compare(first, low) <= 0
            && cf.getComparator().compare(high, last) <= 0;
    }

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        }


        public Future<Pair<CounterCacheKey, ClockAndCount>> deserialize(DataInputStream in, final ColumnFamilyStore cfs) throws IOException
        {
            final ByteBuffer partitionKey = ByteBufferUtil.readWithLength(in);
            final CellName cellName = cfs.metadata.comparator.cellFromByteBuffer(ByteBufferUtil.readWithLength(in));
            return StageManager.getStage(Stage.READ).submit(new Callable<Pair<CounterCacheKey, ClockAndCount>>()
            {
                public Pair<CounterCacheKey, ClockAndCount> call() throws Exception
                {
                    DecoratedKey key = cfs.partitioner.decorateKey(partitionKey);

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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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    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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    }


    public IndexedEntry decodeEntry(DecoratedKey indexedValue, Cell indexEntry)
    {
        int prefixSize = columnDef.position();
        CellName name = indexEntry.name();
        CBuilder builder = baseCfs.getComparator().builder();
        for (int i = 0; i < prefixSize; i++)
            builder.add(name.get(i + 1));
        return new IndexedEntry(indexedValue, name, indexEntry.timestamp(), name.get(0), builder.build(), name.get(prefixSize + 1));
    }

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            && comp.compare(name.get(columnDef.position()), columnDef.name.bytes) == 0;
    }


    public boolean isStale(IndexedEntry entry, ColumnFamily data, long now)
    {
        CellName name = data.getComparator().create(entry.indexedEntryPrefix, columnDef, entry.indexedEntryCollectionKey);
        Cell cell = data.getColumn(name);
        return cell == null || !cell.isLive(now) || ((CollectionType) columnDef.type).valueComparator().compare(entry.indexValue.getKey(), cell.value()) != 0;
    }

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        // (don't need to worry about cfNew containing Columns that are shadowed by
        // the delete tombstone, since cfNew was generated by CF.resolve, which
        // takes care of those for us.)
        for (Cell cellExternal : cfComposite)
        {
            CellName cName = cellExternal.name();
            Cell cellInternal = getColumn(cName);
            if (cellInternal == null)
            {
                cfDiff.addColumn(cellExternal);
            }

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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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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

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