Examples of SlicePredicate

org.apache.cassandra.service.SlicePredicate
kipedia.org/wiki/Predicate_(mathematical_logic)), which is described as "a property that the elements of a set have in common." SlicePredicate's in Cassandra are described with either a list of column_names or a SliceRange. If column_names is specified, slice_range is ignored. @param column_name. A list of column names to retrieve. This can be used similar to Memcached's "multi-get" featureto fetch N known column names. For instance, if you know you wish to fetch columns 'Joe', 'Jack', and 'Jim' you can pass those column names as a list to fetch all three at once. @param slice_range. A SliceRange describing how to range, order, and/or limit the slice.
org.apache.cassandra.thrift.SlicePredicate
kipedia.org/wiki/Predicate_(mathematical_logic)), which is described as "a property that the elements of a set have in common." SlicePredicate's in Cassandra are described with either a list of column_names or a SliceRange. If column_names is specified, slice_range is ignored. @param column_name. A list of column names to retrieve. This can be used similar to Memcached's "multi-get" featureto fetch N known column names. For instance, if you know you wish to fetch columns 'Joe', 'Jack', and 'Jim' you can pass those column names as a list to fetch all three at once. @param slice_range. A SliceRange describing how to range, order, and/or limit the slice.

Examples of org.apache.cassandra.thrift.SlicePredicate

    private List<Row> multiRangeSlice(List<ByteBuffer> variables) throws InvalidRequestException, TimedOutException, UnavailableException
    {
        List<Row> rows;


        // XXX: Our use of Thrift structs internally makes me Sad. :(
        SlicePredicate thriftSlicePredicate = makeSlicePredicate(variables);
        QueryProcessor.validateSlicePredicate(cfDef.cfm, thriftSlicePredicate);


        List<IndexExpression> expressions = getIndexExpressions(variables);


        try

View Full Code Here

Examples of org.apache.cassandra.thrift.SlicePredicate

    }


    private SlicePredicate makeSlicePredicate(List<ByteBuffer> variables)
    throws InvalidRequestException
    {
        SlicePredicate thriftSlicePredicate = new SlicePredicate();


        if (isColumnRange())
        {
            SliceRange sliceRange = new SliceRange();
            sliceRange.start = getRequestedBound(isReversed ? Bound.END : Bound.START, variables);

View Full Code Here

Examples of org.apache.cassandra.thrift.SlicePredicate


    @Override
    public void setLocation(String location, Job job) throws IOException
    {
        SliceRange range = new SliceRange(BOUND, BOUND, false, limit);
        SlicePredicate predicate = new SlicePredicate().setSlice_range(range);
        conf = job.getConfiguration();
        ConfigHelper.setInputSlicePredicate(conf, predicate);
        String[] names = parseLocation(location);
        ConfigHelper.setInputColumnFamily(conf, names[0], names[1]);
        setConnectionInformation();

View Full Code Here

Examples of org.apache.cassandra.thrift.SlicePredicate


            job.setInputFormatClass(ColumnFamilyInputFormat.class);
            FileOutputFormat.setOutputPath(job, new Path(OUTPUT_PATH_PREFIX + i));


            ConfigHelper.setColumnFamily(job.getConfiguration(), KEYSPACE, COLUMN_FAMILY);
            SlicePredicate predicate = new SlicePredicate().setColumn_names(Arrays.asList(columnName.getBytes()));
            ConfigHelper.setSlicePredicate(job.getConfiguration(), predicate);


            job.waitForCompletion(true);
        }
        return 0;

View Full Code Here

Examples of org.apache.cassandra.thrift.SlicePredicate


    private static SlicePredicate predicateFromString(String st)
    {
        assert st != null;
        TDeserializer deserializer = new TDeserializer(new TJSONProtocol.Factory());
        SlicePredicate predicate = new SlicePredicate();
        try
        {
            deserializer.deserialize(predicate, st, "UTF-8");
        }
        catch (TException e)

View Full Code Here

Examples of org.apache.cassandra.thrift.SlicePredicate

                new Column(getBytes(4), ByteBufferUtil.bytes("val4"), 1),
                new Column(getBytes(5), ByteBufferUtil.bytes("val5"), 1),
                new Column(getBytes(6), ByteBufferUtil.bytes("val6"), 1));
        
        // verify insert.
        final SlicePredicate sp = new SlicePredicate();
        sp.setSlice_range(new SliceRange());
        sp.getSlice_range().setCount(100);
        sp.getSlice_range().setStart(ArrayUtils.EMPTY_BYTE_ARRAY);
        sp.getSlice_range().setFinish(ArrayUtils.EMPTY_BYTE_ARRAY);
        
        assertRowAndColCount(1, 6, scfName, false, cfs.getRangeSlice(scfName, Util.range("f", "g"), 100, QueryFilter.getFilter(sp, cfs.getComparator())));
        
        // deeleet.
        RowMutation rm = new RowMutation(table.name, key.key);

View Full Code Here

Examples of org.apache.cassandra.thrift.SlicePredicate

        String cfName = "Standard1";
        Table table = Table.open(tableName);
        ColumnFamilyStore cfs = table.getColumnFamilyStore(cfName);
        DecoratedKey key = Util.dk("f-flush-resurrection");
        
        SlicePredicate sp = new SlicePredicate();
        sp.setSlice_range(new SliceRange());
        sp.getSlice_range().setCount(100);
        sp.getSlice_range().setStart(ArrayUtils.EMPTY_BYTE_ARRAY);
        sp.getSlice_range().setFinish(ArrayUtils.EMPTY_BYTE_ARRAY);
        
        // insert
        putColsStandard(cfs, key, column("col1", "val1", 1), column("col2", "val2", 1));
        assertRowAndColCount(1, 2, null, false, cfs.getRangeSlice(null, Util.range("f", "g"), 100, QueryFilter.getFilter(sp, cfs.getComparator())));

View Full Code Here

Examples of org.apache.cassandra.thrift.SlicePredicate

    private List<Row> multiRangeSlice(List<ByteBuffer> variables) throws InvalidRequestException, TimedOutException, UnavailableException
    {
        List<Row> rows;


        // XXX: Our use of Thrift structs internally makes me Sad. :(
        SlicePredicate thriftSlicePredicate = makeSlicePredicate(variables);
        QueryProcessor.validateSlicePredicate(cfDef.cfm, thriftSlicePredicate);


        List<IndexExpression> expressions = getIndexExpressions(variables);


        try

View Full Code Here

Examples of org.apache.cassandra.thrift.SlicePredicate

    }


    private SlicePredicate makeSlicePredicate(List<ByteBuffer> variables)
    throws InvalidRequestException
    {
        SlicePredicate thriftSlicePredicate = new SlicePredicate();


        if (isColumnRange())
        {
            SliceRange sliceRange = new SliceRange();
            sliceRange.start = getRequestedBound(Bound.START, variables);

View Full Code Here

Examples of org.apache.cassandra.thrift.SlicePredicate

            String columnFamily = in.readUTF();


            TDeserializer dser = new TDeserializer(new TBinaryProtocol.Factory());
            IndexClause indexClause = new IndexClause();
            FBUtilities.deserialize(dser, indexClause, in);
            SlicePredicate predicate = new SlicePredicate();
            FBUtilities.deserialize(dser, predicate, in);
            AbstractBounds range = AbstractBounds.serializer().deserialize(in);


            return new IndexScanCommand(keyspace, columnFamily, indexClause, predicate, range);
        }

View Full Code Here

0 1 2 3 4 5

TOP

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.