io.druid.query.groupby.orderby

Interface LimitSpec

All Known Implementing Classes:

DefaultLimitSpec, NoopLimitSpec

public interface LimitSpec

Method Summary

Modifier and Type	Method and Description
com.google.common.base.Function<com.metamx.common.guava.Sequence<io.druid.data.input.Row>,com.metamx.common.guava.Sequence<io.druid.data.input.Row>>	build(List<DimensionSpec> dimensions, List<AggregatorFactory> aggs, List<PostAggregator> postAggs) Returns a function that applies a limit to an input sequence that is assumed to be sorted on dimensions.
byte[]	getCacheKey()
LimitSpec	merge(LimitSpec other)

Method Detail

build

com.google.common.base.Function<com.metamx.common.guava.Sequence<io.druid.data.input.Row>,com.metamx.common.guava.Sequence<io.druid.data.input.Row>> build(List<DimensionSpec> dimensions,
                                                                                                                                                           List<AggregatorFactory> aggs,
                                                                                                                                                           List<PostAggregator> postAggs)

Returns a function that applies a limit to an input sequence that is assumed to be sorted on dimensions.

Parameters:

dimensions - query dimensions

aggs - query aggregators

postAggs - query postAggregators

Returns:

limit function

merge

LimitSpec merge(LimitSpec other)

getCacheKey

byte[] getCacheKey()