Package org.apache.cassandra.db.filter

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

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        public IDiskAtomFilter readFilter()
        {
            return expected == null || expected.isEmpty()
                 ? new SliceQueryFilter(ColumnSlice.ALL_COLUMNS_ARRAY, false, 1)
                 : new NamesQueryFilter(ImmutableSortedSet.copyOf(expected.getComparator(), expected.getColumnNames()));
        }
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        SortedSet<CellName> names = new TreeSet<>(cfs.metadata.comparator);
        for (int i = 0; i < currentValues.length; i++)
            if (currentValues[i] == null)
                names.add(counterUpdateCells.get(i).name());

        ReadCommand cmd = new SliceByNamesReadCommand(getKeyspaceName(), key(), cfs.metadata.cfName, Long.MIN_VALUE, new NamesQueryFilter(names));
        Row row = cmd.getRow(cfs.keyspace);
        ColumnFamily cf = row == null ? null : row.cf;

        for (int i = 0; i < currentValues.length; i++)
        {
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        ColumnFamilyStore hintStore = Table.open(Table.SYSTEM_TABLE).getColumnFamilyStore(HINTS_CF);
        IPartitioner p = StorageService.getPartitioner();
        RowPosition minPos = p.getMinimumToken().minKeyBound();
        Range<RowPosition> range = new Range<RowPosition>(minPos, minPos, p);
        IFilter filter = new NamesQueryFilter(ImmutableSortedSet.<ByteBuffer>of());
        List<Row> rows = hintStore.getRangeSlice(null, range, Integer.MAX_VALUE, filter, null);
        for (Row row : rows)
        {
            Token<?> token = StorageService.getPartitioner().getTokenFactory().fromByteArray(row.key.key);
            InetAddress target = StorageService.instance.getTokenMetadata().getEndpoint(token);
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        {
            public void run() throws Exception
            {
                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);
            }
        };
        reTest(table.getColumnFamilyStore("Standard3"), verify);
    }
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        {
            public void run() throws Exception
            {
                ColumnFamily cf;

                cf = cfStore.getColumnFamily(new NamesQueryFilter(TEST_KEY, new QueryPath("Standard1"), "col1".getBytes()));
                assertColumns(cf, "col1");

                cf = cfStore.getColumnFamily(new NamesQueryFilter(TEST_KEY, new QueryPath("Standard1"), "col3".getBytes()));
                assertColumns(cf, "col3");
            }
        };
        reTest(table.getColumnFamilyStore("Standard1"), verify);
    }
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    }

    private void validateRemoveTwoSources() throws IOException
    {
        ColumnFamilyStore store = Table.open("Keyspace1").getColumnFamilyStore("Super1");
        ColumnFamily resolved = store.getColumnFamily(new NamesQueryFilter("key1", new QueryPath("Super1"), "SC1".getBytes()));
        assert resolved.getSortedColumns().iterator().next().getMarkedForDeleteAt() == 1;
        assert resolved.getSortedColumns().iterator().next().getSubColumns().size() == 0;
        assertNull(ColumnFamilyStore.removeDeleted(resolved, Integer.MAX_VALUE));
        assertNull(ColumnFamilyStore.removeDeleted(store.getColumnFamily(new IdentityQueryFilter("key1", new QueryPath("Super1"))), Integer.MAX_VALUE));
    }
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    }

    private void validateRemoveCompacted() throws IOException
    {
        ColumnFamilyStore store = Table.open("Keyspace1").getColumnFamilyStore("Super1");
        ColumnFamily resolved = store.getColumnFamily(new NamesQueryFilter("key1", new QueryPath("Super1"), "SC1".getBytes()));
        assert resolved.getSortedColumns().iterator().next().getMarkedForDeleteAt() == 1;
        Collection<IColumn> subColumns = resolved.getSortedColumns().iterator().next().getSubColumns();
        assert subColumns.size() == 0;
    }
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    }

    private void validateRemoveWithNewData() throws IOException
    {
        ColumnFamilyStore store = Table.open("Keyspace1").getColumnFamilyStore("Super2");
        ColumnFamily resolved = store.getColumnFamily(new NamesQueryFilter("key1", new QueryPath("Super2", "SC1".getBytes()), getBytes(2)));
        Collection<IColumn> subColumns = resolved.getSortedColumns().iterator().next().getSubColumns();
        assert subColumns.size() == 1;
        assert subColumns.iterator().next().timestamp() == 2;
    }
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    public static void updateToken(Token token) throws IOException
    {
        IPartitioner p = StorageService.getPartitioner();
        Table table = Table.open(Table.SYSTEM_TABLE);
        /* Retrieve the "LocationInfo" column family */
        QueryFilter filter = new NamesQueryFilter(LOCATION_KEY, new QueryPath(LOCATION_CF), TOKEN);
        ColumnFamily cf = table.getColumnFamilyStore(LOCATION_CF).getColumnFamily(filter);
        long oldTokenColumnTimestamp = cf.getColumn(SystemTable.TOKEN).timestamp();
        /* create the "Token" whose value is the new token. */
        IColumn tokenColumn = new Column(SystemTable.TOKEN, p.getTokenFactory().toByteArray(token), oldTokenColumnTimestamp + 1);
        /* replace the old "Token" column with this new one. */
 
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    }
   
    @Override
    public Row getRow(Table table) throws IOException
    {       
        return table.getRow(new NamesQueryFilter(key, queryPath, columnNames));
    }
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Related Classes of org.apache.cassandra.db.filter.NamesQueryFilter

  • org.apache.cassandra.db.BatchlogManager
  • org.apache.cassandra.db.CollationController
  • org.apache.cassandra.db.ColumnFamilyStore
  • org.apache.cassandra.db.ColumnFamilyStoreTest
  • org.apache.cassandra.db.columniterator.SSTableNamesIterator
  • org.apache.cassandra.db.CommitLogTest
  • org.apache.cassandra.db.composites.CellName
  • org.apache.cassandra.db.CounterMutation
  • org.apache.cassandra.db.HintedHandOffManager
  • org.apache.cassandra.db.IColumn
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