io.druid.query.topn

Class TopNQueryQueryToolChest

java.lang.Object

io.druid.query.QueryToolChest<Result<TopNResultValue>,TopNQuery>

io.druid.query.topn.TopNQueryQueryToolChest

public class TopNQueryQueryToolChest
extends QueryToolChest<Result<TopNResultValue>,TopNQuery>

Constructor Summary

Constructors

Constructor and Description
TopNQueryQueryToolChest(TopNQueryConfig config)

Method Summary

Methods

Modifier and Type	Method and Description
protected static String[]	extractFactoryName(List<AggregatorFactory> aggregatorFactories)
CacheStrategy<Result<TopNResultValue>,Object,TopNQuery>	getCacheStrategy(TopNQuery query)
com.google.common.collect.Ordering<Result<TopNResultValue>>	getOrdering()
com.fasterxml.jackson.core.type.TypeReference<Result<TopNResultValue>>	getResultTypeReference()
com.metamx.emitter.service.ServiceMetricEvent.Builder	makeMetricBuilder(TopNQuery query)
com.google.common.base.Function<Result<TopNResultValue>,Result<TopNResultValue>>	makePostComputeManipulatorFn(TopNQuery query, MetricManipulationFn fn)
com.google.common.base.Function<Result<TopNResultValue>,Result<TopNResultValue>>	makePreComputeManipulatorFn(TopNQuery query, MetricManipulationFn fn)
QueryRunner<Result<TopNResultValue>>	mergeResults(QueryRunner<Result<TopNResultValue>> runner)
com.metamx.common.guava.Sequence<Result<TopNResultValue>>	mergeSequences(com.metamx.common.guava.Sequence<com.metamx.common.guava.Sequence<Result<TopNResultValue>>> seqOfSequences) This method doesn't belong here, but it's here for now just to make it work.
com.metamx.common.guava.Sequence<Result<TopNResultValue>>	mergeSequencesUnordered(com.metamx.common.guava.Sequence<com.metamx.common.guava.Sequence<Result<TopNResultValue>>> seqOfSequences)
QueryRunner<Result<TopNResultValue>>	postMergeQueryDecoration(QueryRunner<Result<TopNResultValue>> runner)
QueryRunner<Result<TopNResultValue>>	preMergeQueryDecoration(QueryRunner<Result<TopNResultValue>> runner)

Methods inherited from class io.druid.query.QueryToolChest

filterSegments

Methods inherited from class java.lang.Object

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

Constructor Detail

TopNQueryQueryToolChest

@Inject
public TopNQueryQueryToolChest(TopNQueryConfig config)

Method Detail

extractFactoryName

protected static String[] extractFactoryName(List<AggregatorFactory> aggregatorFactories)

mergeResults

public QueryRunner<Result<TopNResultValue>> mergeResults(QueryRunner<Result<TopNResultValue>> runner)

Specified by:

mergeResults in class QueryToolChest<Result<TopNResultValue>,TopNQuery>

mergeSequences

public com.metamx.common.guava.Sequence<Result<TopNResultValue>> mergeSequences(com.metamx.common.guava.Sequence<com.metamx.common.guava.Sequence<Result<TopNResultValue>>> seqOfSequences)

Description copied from class: QueryToolChest

This method doesn't belong here, but it's here for now just to make it work.

Specified by:

mergeSequences in class QueryToolChest<Result<TopNResultValue>,TopNQuery>

Parameters:

seqOfSequences - sequence of sequences to be merged

Returns:

the sequence of merged results

mergeSequencesUnordered

public com.metamx.common.guava.Sequence<Result<TopNResultValue>> mergeSequencesUnordered(com.metamx.common.guava.Sequence<com.metamx.common.guava.Sequence<Result<TopNResultValue>>> seqOfSequences)

Specified by:

mergeSequencesUnordered in class QueryToolChest<Result<TopNResultValue>,TopNQuery>

makeMetricBuilder

public com.metamx.emitter.service.ServiceMetricEvent.Builder makeMetricBuilder(TopNQuery query)

Specified by:

makeMetricBuilder in class QueryToolChest<Result<TopNResultValue>,TopNQuery>

makePreComputeManipulatorFn

public com.google.common.base.Function<Result<TopNResultValue>,Result<TopNResultValue>> makePreComputeManipulatorFn(TopNQuery query,
                                                                                                           MetricManipulationFn fn)

Specified by:

makePreComputeManipulatorFn in class QueryToolChest<Result<TopNResultValue>,TopNQuery>

makePostComputeManipulatorFn

public com.google.common.base.Function<Result<TopNResultValue>,Result<TopNResultValue>> makePostComputeManipulatorFn(TopNQuery query,
                                                                                                            MetricManipulationFn fn)

Overrides:

makePostComputeManipulatorFn in class QueryToolChest<Result<TopNResultValue>,TopNQuery>

getResultTypeReference

public com.fasterxml.jackson.core.type.TypeReference<Result<TopNResultValue>> getResultTypeReference()

Specified by:

getResultTypeReference in class QueryToolChest<Result<TopNResultValue>,TopNQuery>

getCacheStrategy

public CacheStrategy<Result<TopNResultValue>,Object,TopNQuery> getCacheStrategy(TopNQuery query)

Overrides:

getCacheStrategy in class QueryToolChest<Result<TopNResultValue>,TopNQuery>

preMergeQueryDecoration

public QueryRunner<Result<TopNResultValue>> preMergeQueryDecoration(QueryRunner<Result<TopNResultValue>> runner)

Overrides:

preMergeQueryDecoration in class QueryToolChest<Result<TopNResultValue>,TopNQuery>

postMergeQueryDecoration

public QueryRunner<Result<TopNResultValue>> postMergeQueryDecoration(QueryRunner<Result<TopNResultValue>> runner)

Overrides:

postMergeQueryDecoration in class QueryToolChest<Result<TopNResultValue>,TopNQuery>

getOrdering

public com.google.common.collect.Ordering<Result<TopNResultValue>> getOrdering()