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).

        ByteBuffer rowKey = ByteBufferUtil.bytes("k1");
        ByteBuffer clusterKey = ByteBufferUtil.bytes("ck1");
        ByteBuffer colName = ByteBufferUtil.bytes("col1");


        CellNameType baseComparator = cfs.getComparator();
        CellName compositeName = baseComparator.makeCellName(clusterKey, colName);


        ByteBuffer val1 = ByteBufferUtil.bytes("v2");


        // Insert indexed value.
        Mutation rm;

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    public void testIndexScanWithLimitOne()
    {
        ColumnFamilyStore cfs = Keyspace.open("Keyspace1").getColumnFamilyStore("Indexed1");
        Mutation rm;


        CellName nobirthdate = cellname("notbirthdate");
        CellName birthdate = cellname("birthdate");


        rm = new Mutation("Keyspace1", ByteBufferUtil.bytes("kk1"));
        rm.add("Indexed1", nobirthdate, ByteBufferUtil.bytes(1L), 0);
        rm.add("Indexed1", birthdate, ByteBufferUtil.bytes(1L), 0);
        rm.apply();

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        ColumnFamilyStore cfs = keyspace.getColumnFamilyStore(cfname);


        // insert two columns that represent the same integer but have different binary forms (the
        // second one is padded with extra zeros)
        Mutation rm = new Mutation("Keyspace1", ByteBufferUtil.bytes("k1"));
        CellName column1 = cellname(ByteBuffer.wrap(new byte[]{1}));
        rm.add(cfname, column1, ByteBufferUtil.bytes("data1"), 1);
        rm.apply();
        cfs.forceBlockingFlush();


        rm = new Mutation("Keyspace1", ByteBufferUtil.bytes("k1"));
        CellName column2 = cellname(ByteBuffer.wrap(new byte[]{0, 0, 1}));
        rm.add(cfname, column2, ByteBufferUtil.bytes("data2"), 2);
        rm.apply();
        cfs.forceBlockingFlush();


        // fetch by the first column name; we should get the second version of the column value

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    public void testSliceByNamesCommandOldMetatada() throws Throwable
    {
        String keyspaceName = "Keyspace1";
        String cfName= "Standard1";
        DecoratedKey key = Util.dk("slice-name-old-metadata");
        CellName cname = cellname("c1");
        Keyspace keyspace = Keyspace.open(keyspaceName);
        ColumnFamilyStore cfs = keyspace.getColumnFamilyStore(cfName);
        cfs.clearUnsafe();


        // Create a cell a 'high timestamp'

View Full Code Here

        }


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

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            assert value instanceof Sets.Value : value;


            Set<ByteBuffer> toAdd = ((Sets.Value)value).elements;
            for (ByteBuffer bb : toAdd)
            {
                CellName cellName = cf.getComparator().create(prefix, column, bb);
                cf.addColumn(params.makeColumn(cellName, ByteBufferUtil.EMPTY_BYTE_BUFFER));
            }
        }

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    public boolean isFullyCoveredBy(ColumnFamily cf, long now)
    {
        // cf will cover all the requested columns if the range it covers include
        // all said columns
        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, columns.first()) <= 0
            && cf.getComparator().compare(columns.last(), last) <= 0;
    }

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            protected RangeTombstone computeNext()
            {
                while (names.hasNext())
                {
                    CellName next = names.next();
                    if (lastFindRange != null && lastFindRange.includes(source.getComparator(), next))
                        return lastFindRange;


                    // We keep the last range around as since names are in sort order, it's
                    // possible it will match the next name too.

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        protected OnDiskAtom computeNext()
        {
            while (iter.hasNext())
            {
                CellName current = iter.next();
                Cell cell = cf.getColumn(current);
                if (cell != null)
                    return cell;
            }
            return endOfData();

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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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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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