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

Package org.apache.cassandra.db.composites

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

org.apache.cassandra.db.composites.Composite
A composite value. This can be though as a list of ByteBuffer, except that this also include an 'end-of-component' flag, that allow precise selection of composite ranges. We also make a difference between "true" composites and the "simple" ones. The non-truly composite will have a size() == 1 but differs from true composites with size() == 1 in the way they are stored. Most code shouldn't have to care about the difference.


    public CFRowAdder resetCollection(String cql3ColumnName)
    {
        ColumnDefinition def = getDefinition(cql3ColumnName);
        assert def.type.isCollection() && def.type.isMultiCell();
        Composite name = cf.getComparator().create(prefix, def);
        cf.addAtom(new RangeTombstone(name.start(), name.end(), timestamp - 1, ldt));
        return this;
    }

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        logger.info("Started hinted handoff for host: {} with IP: {}", hostId, endpoint);
        final ByteBuffer hostIdBytes = ByteBuffer.wrap(UUIDGen.decompose(hostId));
        DecoratedKey epkey =  StorageService.getPartitioner().decorateKey(hostIdBytes);


        final AtomicInteger rowsReplayed = new AtomicInteger(0);
        Composite startColumn = Composites.EMPTY;


        int pageSize = calculatePageSize();
        logger.debug("Using pageSize of {}", pageSize);


        // rate limit is in bytes per second. Uses Double.MAX_VALUE if disabled (set to 0 in cassandra.yaml).

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        if (keys.size() > 1)
            throw new InvalidRequestException("IN on the partition key is not supported with conditional updates");


        ByteBuffer key = keys.get(0);
        long now = options.getTimestamp(queryState);
        Composite prefix = createClusteringPrefix(options);


        CQL3CasRequest request = new CQL3CasRequest(cfm, key, false);
        addConditions(prefix, request, options);
        request.addRowUpdate(prefix, this, options, now);

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     */
    private Collection<? extends IMutation> getMutations(QueryOptions options, boolean local, long now)
    throws RequestExecutionException, RequestValidationException
    {
        List<ByteBuffer> keys = buildPartitionKeyNames(options);
        Composite clusteringPrefix = createClusteringPrefix(options);


        UpdateParameters params = makeUpdateParameters(keys, clusteringPrefix, options, local, now);


        Collection<IMutation> mutations = new ArrayList<IMutation>(keys.size());
        for (ByteBuffer key: keys)

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            return deserializeBody(in, min, version);
        }


        public RangeTombstone deserializeBody(DataInput in, Composite min, Version version) throws IOException
        {
            Composite max = type.serializer().deserialize(in);
            DeletionTime dt = DeletionTime.serializer.deserialize(in);
            return new RangeTombstone(min, max, dt);
        }

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            return deserializeFromSSTable(in, ColumnSerializer.Flag.LOCAL, Integer.MIN_VALUE, version);
        }


        public OnDiskAtom deserializeFromSSTable(DataInput in, ColumnSerializer.Flag flag, int expireBefore, Version version) throws IOException
        {
            Composite name = type.serializer().deserialize(in);
            if (name.isEmpty())
            {
                // SSTableWriter.END_OF_ROW
                return null;
            }

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        // The following does the same than statement.getMutations(), but we inline it here because
        // we don't want to recreate mutations every time as this is particularly inefficient when applying
        // multiple batch to the same partition (see #6737).
        List<ByteBuffer> keys = statement.buildPartitionKeyNames(options);
        Composite clusteringPrefix = statement.createClusteringPrefix(options);
        UpdateParameters params = statement.makeUpdateParameters(keys, clusteringPrefix, options, local, now);


        for (ByteBuffer key : keys)
        {
            IMutation mutation = ksMap.get(key);

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            else if (!key.equals(pks.get(0)))
            {
                throw new InvalidRequestException("Batch with conditions cannot span multiple partitions");
            }


            Composite clusteringPrefix = statement.createClusteringPrefix(statementOptions);
            if (statement.hasConditions())
            {
                statement.addConditions(clusteringPrefix, casRequest, statementOptions);
                // As soon as we have a ifNotExists, we set columnsWithConditions to null so that everything is in the resultSet
                if (statement.hasIfNotExistCondition() || statement.hasIfExistCondition())

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    public Mutation toSchemaDrop(long timestamp)
    {
        Mutation mutation = makeSchemaMutation(name);
        ColumnFamily cf = mutation.addOrGet(SystemKeyspace.SCHEMA_FUNCTIONS_TABLE);


        Composite prefix = SystemKeyspace.SchemaFunctionsTable.comparator.make(name.name, computeSignature(argTypes));
        int ldt = (int) (System.currentTimeMillis() / 1000);
        cf.addAtom(new RangeTombstone(prefix, prefix.end(), timestamp, ldt));


        return mutation;
    }

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    public Mutation toSchemaUpdate(long timestamp)
    {
        Mutation mutation = makeSchemaMutation(name);
        ColumnFamily cf = mutation.addOrGet(SystemKeyspace.SCHEMA_FUNCTIONS_TABLE);


        Composite prefix = SystemKeyspace.SchemaFunctionsTable.comparator.make(name.name, computeSignature(argTypes));
        CFRowAdder adder = new CFRowAdder(cf, prefix, timestamp);


        adder.resetCollection("argument_names");
        adder.resetCollection("argument_types");
        adder.add("return_type", returnType.toString());

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Related Classes of org.apache.cassandra.db.composites.Composite

com.stratio.cassandra.index.ClusteringKeyMapper

com.stratio.cassandra.index.FullKeyMapperDataRangeFilter

org.apache.cassandra.config.CFMetaData

org.apache.cassandra.config.ColumnDefinition

org.apache.cassandra.config.TriggerDefinition

org.apache.cassandra.config.UTMetaData

org.apache.cassandra.cql.QueryProcessor

org.apache.cassandra.cql3.functions.UDFunction

org.apache.cassandra.cql3.statements.BatchStatement

org.apache.cassandra.cql3.statements.ModificationStatement

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