Examples of org.apache.cassandra.db.filter.IDiskAtomFilter

org.apache.cassandra.db.filter.IDiskAtomFilter
Given an implementation-specific description of what columns to look for, provides methods to extract the desired columns from a Memtable, SSTable, or SuperColumn. Either the get*ColumnIterator methods will be called, or filterSuperColumn, but not both on the same object. QueryFilter takes care of putting the two together if subcolumn filtering needs to be done, based on the querypath that it knows (but that IFilter implementations are oblivious to).


            IPartitioner p = StorageService.getPartitioner();
            AbstractBounds<RowPosition> bounds = new Bounds<RowPosition>(RowPosition.forKey(index_clause.start_key, p),
                                                                         p.getMinimumToken().minKeyBound());


            IDiskAtomFilter filter = ThriftValidation.asIFilter(column_predicate, metadata.getComparatorFor(column_parent.super_column));
            RangeSliceCommand command = new RangeSliceCommand(keyspace,
                                                              column_parent.column_family,
                                                              null,
                                                              filter,
                                                              bounds,

View Full Code Here

        Table table = Table.open(command.keyspace);
        List<Row> rows;
        // now scan until we have enough results
        try
        {
            IDiskAtomFilter commandPredicate = command.predicate;


            int cql3RowCount = 0;
            rows = new ArrayList<Row>();
            List<AbstractBounds<RowPosition>> ranges = getRestrictedRanges(command.range);
            int i = 0;

View Full Code Here

            IPartitioner p = StorageService.getPartitioner();
            IndexExpression expr = new IndexExpression(ByteBufferUtil.bytes("birthdate"),
                                                       IndexOperator.EQ,
                                                       ByteBufferUtil.bytes(val));
            List<IndexExpression> clause = Arrays.asList(expr);
            IDiskAtomFilter filter = new IdentityQueryFilter();
            Range<RowPosition> range = Util.range("", "");
            List<Row> rows = cfs.search(clause, range, 100, filter);
            assertEquals(1, rows.size());
            assert rows.get(0).key.key.equals(ByteBufferUtil.bytes(key));
        }

View Full Code Here

                total++;
                ColumnFamily data = rawRow.cf;


                if (rowIterator.needsFiltering())
                {
                    IDiskAtomFilter extraFilter = filter.getExtraFilter(data);
                    if (extraFilter != null)
                    {
                        QueryPath path = new QueryPath(columnFamily);
                        ColumnFamily cf = filter.cfs.getColumnFamily(new QueryFilter(rawRow.key, path, extraFilter));
                        if (cf != null)

View Full Code Here

                total++;
                ColumnFamily data = rawRow.cf;


                if (rowIterator.needsFiltering())
                {
                    IDiskAtomFilter extraFilter = filter.getExtraFilter(rawRow.key, data);
                    if (extraFilter != null)
                    {
                        ColumnFamily cf = filter.cfs.getColumnFamily(new QueryFilter(rawRow.key, name, extraFilter, filter.timestamp));
                        if (cf != null)
                            data.addAll(cf, HeapAllocator.instance);

View Full Code Here

        return filter;
    }


    private IDiskAtomFilter toInternalFilter(CFMetaData metadata, ColumnParent parent, SlicePredicate predicate)
    {
        IDiskAtomFilter filter;
        if (predicate.column_names != null)
        {
            if (metadata.isSuper())
            {
                CompositeType type = (CompositeType)metadata.comparator;

View Full Code Here


        org.apache.cassandra.db.ConsistencyLevel consistencyLevel = ThriftConversion.fromThrift(consistency_level);
        consistencyLevel.validateForRead(keyspace);


        List<ReadCommand> commands = new ArrayList<ReadCommand>(keys.size());
        IDiskAtomFilter filter = toInternalFilter(metadata, column_parent, predicate);


        for (ByteBuffer key: keys)
        {
            ThriftValidation.validateKey(metadata, key);
            // Note that we should not share a slice filter amongst the command, due to SliceQueryFilter not  being immutable
            // due to its columnCounter used by the lastCounted() method (also see SelectStatement.getSliceCommands)
            commands.add(ReadCommand.create(keyspace, key, column_parent.getColumn_family(), timestamp, filter.cloneShallow()));
        }


        return getSlice(commands, column_parent.isSetSuper_column(), consistencyLevel);
    }

View Full Code Here

            org.apache.cassandra.db.ConsistencyLevel consistencyLevel = ThriftConversion.fromThrift(consistency_level);
            consistencyLevel.validateForRead(keyspace);


            ThriftValidation.validateKey(metadata, key);


            IDiskAtomFilter filter;
            if (metadata.isSuper())
            {
                CompositeType type = (CompositeType)metadata.comparator;
                SortedSet names = new TreeSet<ByteBuffer>(column_path.column == null ? type.types.get(0) : type.types.get(1));
                names.add(column_path.column == null ? column_path.super_column : column_path.column);

View Full Code Here

            }
            long now = System.currentTimeMillis();
            schedule(DatabaseDescriptor.getRangeRpcTimeout());
            try
            {
                IDiskAtomFilter filter = ThriftValidation.asIFilter(predicate, metadata, column_parent.super_column);
                rows = StorageProxy.getRangeSlice(new RangeSliceCommand(keyspace,
                                                                        column_parent.column_family,
                                                                        now,
                                                                        filter,
                                                                        bounds,

View Full Code Here

            List<Row> rows;
            long now = System.currentTimeMillis();
            schedule(DatabaseDescriptor.getRangeRpcTimeout());
            try
            {
                IDiskAtomFilter filter = ThriftValidation.asIFilter(predicate, metadata, null);
                rows = StorageProxy.getRangeSlice(new RangeSliceCommand(keyspace, column_family, now, filter, bounds, null, range.count, true, true), consistencyLevel);
            }
            finally
            {
                release();

View Full Code Here

0 1 2 3 4 5 6 7 8 9

TOP

Related Classes of org.apache.cassandra.db.filter.IDiskAtomFilter

com.thinkaurelius.titan.diskstorage.cassandra.embedded.CassandraEmbeddedKeyColumnValueStore

org.apache.cassandra.db.CleanupTest

org.apache.cassandra.db.ColumnFamilyStore

org.apache.cassandra.db.ColumnFamilyStoreTest

org.apache.cassandra.db.compaction.PrecompactedRow

org.apache.cassandra.db.index.composites.CompositesSearcher

org.apache.cassandra.db.index.keys.KeysSearcher

org.apache.cassandra.db.RangeSliceCommandSerializer

org.apache.cassandra.db.RangeTombstoneTest

org.apache.cassandra.db.RowIteratorFactory

All source code are property of their respective owners. Java is a trademark of Sun Microsystems, Inc and owned by ORACLE Inc. Contact coftware#gmail.com.