org.apache.druid.query.groupby.epinephelinae

Class GrouperBufferComparatorUtils

java.lang.Object

org.apache.druid.query.groupby.epinephelinae.GrouperBufferComparatorUtils

public class GrouperBufferComparatorUtils
extends Object

Set of utility methods to faciliate implementation of Grouper.KeySerde.bufferComparator() and Grouper.KeySerde.bufferComparatorWithAggregators(AggregatorFactory[], int[])

Constructor Summary

Constructors

Constructor and Description
GrouperBufferComparatorUtils()

Method Summary

Modifier and Type	Method and Description
static Grouper.BufferComparator	bufferComparator(boolean includeTimestamp, boolean sortByDimsFirst, int dimCount, Grouper.BufferComparator[] serdeHelperComparators)
static Grouper.BufferComparator	bufferComparatorWithAggregators(AggregatorFactory[] aggregatorFactories, int[] aggregatorOffsets, DefaultLimitSpec limitSpec, List<DimensionSpec> dimensions, Grouper.BufferComparator[] dimComparators, boolean includeTimestamp, boolean sortByDimsFirst)
static Grouper.BufferComparator	makeBufferComparatorForDouble(int keyBufferPosition, boolean pushLimitDown, StringComparator stringComparator)
static Grouper.BufferComparator	makeBufferComparatorForFloat(int keyBufferPosition, boolean pushLimitDown, StringComparator stringComparator)
static Grouper.BufferComparator	makeBufferComparatorForLong(int keyBufferPosition, boolean pushLimitDown, StringComparator stringComparator)
static Grouper.BufferComparator	makeNullHandlingBufferComparatorForNumericData(int keyBufferPosition, Grouper.BufferComparator delegate)

Methods inherited from class java.lang.Object

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

Constructor Detail

GrouperBufferComparatorUtils

public GrouperBufferComparatorUtils()

Method Detail

bufferComparator

public static Grouper.BufferComparator bufferComparator(boolean includeTimestamp,
                                                        boolean sortByDimsFirst,
                                                        int dimCount,
                                                        Grouper.BufferComparator[] serdeHelperComparators)

bufferComparatorWithAggregators

public static Grouper.BufferComparator bufferComparatorWithAggregators(AggregatorFactory[] aggregatorFactories,
                                                                       int[] aggregatorOffsets,
                                                                       DefaultLimitSpec limitSpec,
                                                                       List<DimensionSpec> dimensions,
                                                                       Grouper.BufferComparator[] dimComparators,
                                                                       boolean includeTimestamp,
                                                                       boolean sortByDimsFirst)

makeBufferComparatorForLong

public static Grouper.BufferComparator makeBufferComparatorForLong(int keyBufferPosition,
                                                                   boolean pushLimitDown,
                                                                   @Nullable
                                                                   StringComparator stringComparator)

makeBufferComparatorForDouble

public static Grouper.BufferComparator makeBufferComparatorForDouble(int keyBufferPosition,
                                                                     boolean pushLimitDown,
                                                                     @Nullable
                                                                     StringComparator stringComparator)

makeBufferComparatorForFloat

public static Grouper.BufferComparator makeBufferComparatorForFloat(int keyBufferPosition,
                                                                    boolean pushLimitDown,
                                                                    @Nullable
                                                                    StringComparator stringComparator)

makeNullHandlingBufferComparatorForNumericData

public static Grouper.BufferComparator makeNullHandlingBufferComparatorForNumericData(int keyBufferPosition,
                                                                                      Grouper.BufferComparator delegate)