Package org.apache.cassandra.db.filter

Examples of org.apache.cassandra.db.filter.SliceQueryFilter$Serializer

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        for (ByteBuffer key : partitionKeys)
            commands.add(new SliceFromReadCommand(keyspace(),
                                                  key,
                                                  columnFamily(),
                                                  now,
                                                  new SliceQueryFilter(slices, false, Integer.MAX_VALUE)));

        List<Row> rows = local
                       ? SelectStatement.readLocally(keyspace(), commands)
                       : StorageProxy.read(commands, cl);
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                ColumnFamily cf;

                cf = cfStore.getColumnFamily(new NamesQueryFilter(TEST_KEY, new QueryPath("Standard3"), new TreeSet<byte[]>()));
                assertColumns(cf);

                cf = cfStore.getColumnFamily(new SliceQueryFilter(TEST_KEY, new QueryPath("Standard3"), ArrayUtils.EMPTY_BYTE_ARRAY, ArrayUtils.EMPTY_BYTE_ARRAY, false, 0));
                assertColumns(cf);

                cf = cfStore.getColumnFamily(new NamesQueryFilter(TEST_KEY, new QueryPath("Standard3"), "col99".getBytes()));
                assertColumns(cf);
            }
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        TableTest.Runner r = new TableTest.Runner()
        {
            public void run() throws IOException
            {
                SliceQueryFilter sliceFilter = new SliceQueryFilter("key1", new QueryPath("Standard2", null, null), ArrayUtils.EMPTY_BYTE_ARRAY, ArrayUtils.EMPTY_BYTE_ARRAY, false, 1);
                assertNull(store.getColumnFamily(sliceFilter));
                NamesQueryFilter namesFilter = new NamesQueryFilter("key1", new QueryPath("Standard2", null, null), "a".getBytes());
                assertNull(store.getColumnFamily(namesFilter));
            }
        };
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        for (ByteBuffer key : partitionKeys)
            commands.add(new SliceFromReadCommand(keyspace(),
                                                  key,
                                                  columnFamily(),
                                                  now,
                                                  new SliceQueryFilter(slices, false, Integer.MAX_VALUE)));

        List<Row> rows = local
                       ? SelectStatement.readLocally(keyspace(), commands)
                       : StorageProxy.read(commands, cl);
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            Tracing.trace("Reading existing values for CAS precondition");
            long timestamp = System.currentTimeMillis();
            ReadCommand readCommand;
            if (expected == null || expected.isEmpty())
            {
                SliceQueryFilter filter = prefix == null
                                        ? new SliceQueryFilter(ByteBufferUtil.EMPTY_BYTE_BUFFER, ByteBufferUtil.EMPTY_BYTE_BUFFER, false, 1)
                                        : new SliceQueryFilter(prefix.build(), prefix.buildAsEndOfRange(), false, 1, prefix.componentCount());
                readCommand = new SliceFromReadCommand(keyspaceName, key, cfName, timestamp, filter);
            }
            else
            {
                assert !expected.isEmpty();
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            ss.addAll(sp.column_names);
            filter = new NamesQueryFilter(ss);
        }
        else
        {
            filter = new SliceQueryFilter(sr.start, sr.finish, sr.reversed, sr.count);
        }

        if (metadata.isSuper())
            filter = SuperColumns.fromSCFilter((CompositeType)metadata.comparator, superColumn, filter);
        return filter;
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        }
    }

    private SliceQueryFilter toInternalFilter(CFMetaData metadata, ColumnParent parent, SliceRange range)
    {
        SliceQueryFilter filter = new SliceQueryFilter(range.start, range.finish, range.reversed, range.count);
        if (metadata.isSuper())
            filter = SuperColumns.fromSCSliceFilter((CompositeType)metadata.comparator, parent.bufferForSuper_column(), filter);
        return filter;
    }
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            }

            SliceRange sliceRange = predicate.slice_range == null
                                  ? new SliceRange(ByteBufferUtil.EMPTY_BYTE_BUFFER, ByteBufferUtil.EMPTY_BYTE_BUFFER, false, Integer.MAX_VALUE)
                                  : predicate.slice_range;
            SliceQueryFilter filter = toInternalFilter(cfs.metadata, column_parent, sliceRange);

            return QueryPagers.countPaged(keyspace,
                                          column_parent.column_family,
                                          key,
                                          filter,
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    }

    protected List<Row> queryNextPage(int pageSize, ConsistencyLevel consistencyLevel, boolean localQuery)
    throws RequestValidationException, RequestExecutionException
    {
        SliceQueryFilter filter = command.filter.withUpdatedCount(pageSize);
        if (lastReturned != null)
            filter = filter.withUpdatedStart(lastReturned, cfm.comparator);

        ReadCommand pageCmd = command.withUpdatedFilter(filter);
        return localQuery
             ? Collections.singletonList(pageCmd.getRow(Keyspace.open(command.ksName)))
             : StorageProxy.read(Collections.singletonList(pageCmd), consistencyLevel);
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        List<ReadCommand> commands = new ArrayList<ReadCommand>(keys.size());
        for (ByteBuffer key : keys)
            commands.add(new SliceFromReadCommand(keyspace(),
                                                  key,
                                                  new QueryPath(columnFamily()),
                                                  new SliceQueryFilter(slices, false, Integer.MAX_VALUE)));

        List<Row> rows = local
                       ? SelectStatement.readLocally(keyspace(), commands)
                       : StorageProxy.read(commands, cl);
View Full Code Here
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