io.druid.query.topn

Class TimeExtractionTopNAlgorithm

java.lang.Object

io.druid.query.topn.BaseTopNAlgorithm<int[],Map<String,Aggregator[]>,TopNParams>

io.druid.query.topn.TimeExtractionTopNAlgorithm

All Implemented Interfaces:

TopNAlgorithm<int[],TopNParams>

public class TimeExtractionTopNAlgorithm
extends BaseTopNAlgorithm<int[],Map<String,Aggregator[]>,TopNParams>

Nested Class Summary

Nested classes/interfaces inherited from class io.druid.query.topn.BaseTopNAlgorithm

BaseTopNAlgorithm.AggregatorArrayProvider, BaseTopNAlgorithm.BaseArrayProvider<T>

Field Summary

Fields

Modifier and Type	Field and Description
static int[]	EMPTY_INTS

Fields inherited from class io.druid.query.topn.BaseTopNAlgorithm

capabilities

Fields inherited from interface io.druid.query.topn.TopNAlgorithm

EMPTY_ARRAY, INIT_POSITION_VALUE, SKIP_POSITION_VALUE

Constructor Summary

Constructors

Constructor and Description
TimeExtractionTopNAlgorithm(Capabilities capabilities, TopNQuery query)

Method Summary

Modifier and Type	Method and Description
void	cleanup(TopNParams params)
protected void	closeAggregators(Map<String,Aggregator[]> stringMap)
protected Map<String,Aggregator[]>	makeDimValAggregateStore(TopNParams params)
protected int[]	makeDimValSelector(TopNParams params, int numProcessed, int numToProcess)
TopNParams	makeInitParams(ColumnSelectorPlus selectorPlus, Cursor cursor)
protected void	scanAndAggregate(TopNParams params, int[] dimValSelector, Map<String,Aggregator[]> aggregatesStore, int numProcessed)
protected int[]	updateDimValSelector(int[] dimValSelector, int numProcessed, int numToProcess)
protected void	updateResults(TopNParams params, int[] dimValSelector, Map<String,Aggregator[]> aggregatesStore, TopNResultBuilder resultBuilder)

Methods inherited from class io.druid.query.topn.BaseTopNAlgorithm

computeNewLength, makeAggregators, makeBufferAggregators, makeResultBuilder, run

Methods inherited from class java.lang.Object

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

Field Detail

EMPTY_INTS

public static final int[] EMPTY_INTS

Constructor Detail

TimeExtractionTopNAlgorithm

public TimeExtractionTopNAlgorithm(Capabilities capabilities,
                                   TopNQuery query)

Method Detail

makeInitParams

public TopNParams makeInitParams(ColumnSelectorPlus selectorPlus,
                                 Cursor cursor)

makeDimValSelector

protected int[] makeDimValSelector(TopNParams params,
                                   int numProcessed,
                                   int numToProcess)

Specified by:

makeDimValSelector in class BaseTopNAlgorithm<int[],Map<String,Aggregator[]>,TopNParams>

updateDimValSelector

protected int[] updateDimValSelector(int[] dimValSelector,
                                     int numProcessed,
                                     int numToProcess)

Specified by:

updateDimValSelector in class BaseTopNAlgorithm<int[],Map<String,Aggregator[]>,TopNParams>

makeDimValAggregateStore

protected Map<String,Aggregator[]> makeDimValAggregateStore(TopNParams params)

Specified by:

makeDimValAggregateStore in class BaseTopNAlgorithm<int[],Map<String,Aggregator[]>,TopNParams>

scanAndAggregate

protected void scanAndAggregate(TopNParams params,
                                int[] dimValSelector,
                                Map<String,Aggregator[]> aggregatesStore,
                                int numProcessed)

Specified by:

scanAndAggregate in class BaseTopNAlgorithm<int[],Map<String,Aggregator[]>,TopNParams>

updateResults

protected void updateResults(TopNParams params,
                             int[] dimValSelector,
                             Map<String,Aggregator[]> aggregatesStore,
                             TopNResultBuilder resultBuilder)

Specified by:

updateResults in class BaseTopNAlgorithm<int[],Map<String,Aggregator[]>,TopNParams>

closeAggregators

protected void closeAggregators(Map<String,Aggregator[]> stringMap)

Specified by:

closeAggregators in class BaseTopNAlgorithm<int[],Map<String,Aggregator[]>,TopNParams>

cleanup

public void cleanup(TopNParams params)