io.druid.query.groupby

Class GroupByQueryHelper

java.lang.Object

io.druid.query.groupby.GroupByQueryHelper

public class GroupByQueryHelper
extends Object

Field Summary

Fields

Modifier and Type	Field and Description
static String	CTX_KEY_SORT_RESULTS

Constructor Summary

Constructors

Constructor and Description
GroupByQueryHelper()

Method Summary

Modifier and Type	Method and Description
static <T> com.metamx.common.Pair<Queue,com.metamx.common.guava.Accumulator<Queue,T>>	createBySegmentAccumulatorPair()
static <T> com.metamx.common.Pair<IncrementalIndex,com.metamx.common.guava.Accumulator<IncrementalIndex,T>>	createIndexAccumulatorPair(GroupByQuery query, GroupByQueryConfig config, StupidPool<ByteBuffer> bufferPool)
static IncrementalIndex	makeIncrementalIndex(GroupByQuery query, GroupByQueryConfig config, StupidPool<ByteBuffer> bufferPool, com.metamx.common.guava.Sequence<io.druid.data.input.Row> rows)
static com.metamx.common.guava.Sequence<io.druid.data.input.Row>	postAggregate(GroupByQuery query, IncrementalIndex index)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

CTX_KEY_SORT_RESULTS

public static final String CTX_KEY_SORT_RESULTS

See Also:

Constant Field Values

Constructor Detail

GroupByQueryHelper

public GroupByQueryHelper()

Method Detail

createIndexAccumulatorPair

public static <T> com.metamx.common.Pair<IncrementalIndex,com.metamx.common.guava.Accumulator<IncrementalIndex,T>> createIndexAccumulatorPair(GroupByQuery query,
                                                                                                                                              GroupByQueryConfig config,
                                                                                                                                              StupidPool<ByteBuffer> bufferPool)

createBySegmentAccumulatorPair

public static <T> com.metamx.common.Pair<Queue,com.metamx.common.guava.Accumulator<Queue,T>> createBySegmentAccumulatorPair()

makeIncrementalIndex

public static IncrementalIndex makeIncrementalIndex(GroupByQuery query,
                                                    GroupByQueryConfig config,
                                                    StupidPool<ByteBuffer> bufferPool,
                                                    com.metamx.common.guava.Sequence<io.druid.data.input.Row> rows)

postAggregate

public static com.metamx.common.guava.Sequence<io.druid.data.input.Row> postAggregate(GroupByQuery query,
                                                                                      IncrementalIndex index)