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();
            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

                bounds = new Bounds<RowPosition>(RowPosition.forKey(range.start_key, p), end);
            }
            schedule(DatabaseDescriptor.getRangeRpcTimeout());
            try
            {
                IDiskAtomFilter filter = ThriftValidation.asIFilter(predicate, metadata.getComparatorFor(column_parent.super_column));
                rows = StorageProxy.getRangeSlice(new RangeSliceCommand(keyspace, column_parent, filter, bounds,
                                                                        range.row_filter, range.count), consistencyLevel);
            }
            finally
            {

View Full Code Here


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

View Full Code Here


            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

                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

        long startTime = System.nanoTime();
        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);
            for (AbstractBounds<RowPosition> range : ranges)

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

        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

    }


    // returnCF should already have row-level tombstones applied
    public static void merge(final ColumnFamily returnCF, List<CloseableIterator<IColumn>> data, final SecondaryIndexManager.Updater indexer)
    {
        IDiskAtomFilter filter = new IdentityQueryFilter();
        Comparator<IColumn> fcomp = filter.getColumnComparator(returnCF.getComparator());


        MergeIterator.Reducer<IColumn, IColumn> reducer = new MergeIterator.Reducer<IColumn, IColumn>()
        {
            ColumnFamily container = returnCF.cloneMeShallow();


            public void reduce(IColumn column)
            {
                container.addColumn(column);
                if (indexer != SecondaryIndexManager.nullUpdater
                    && !column.isMarkedForDelete()
                    && !container.getColumn(column.name()).equals(column))
                {
                    indexer.remove(column);
                }
            }


            protected IColumn getReduced()
            {
                IColumn c = container.iterator().next();
                container.clear();
                return c;
            }
        };


        Iterator<IColumn> reduced = MergeIterator.get(data, fcomp, reducer);
        filter.collectReducedColumns(returnCF, reduced, CompactionManager.NO_GC);
    }

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

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.