Package org.apache.druid.query.aggregation.firstlast

Class FirstLastUtils

java.lang.Object

org.apache.druid.query.aggregation.firstlast.FirstLastUtils

public class FirstLastUtils
extends Object

Constructor Summary

Constructors

Constructor	Description
FirstLastUtils()

Method Summary

Modifier and Type	Method	Description
static SerializablePairLongDouble	readDoublePairFromVectorSelectors(boolean[] timeNullityVector, long[] timeVector, Object[] objectVector, int index)
static SerializablePairLongFloat	readFloatPairFromVectorSelectors(boolean[] timeNullityVector, long[] timeVector, Object[] objectVector, int index)
static SerializablePairLongLong	readLongPairFromVectorSelectors(boolean[] timeNullityVector, long[] timeVector, Object[] objectVector, int index)
static boolean	selectorNeedsFoldCheck(BaseObjectColumnValueSelector<?> valueSelector, ColumnCapabilities valueSelectorCapabilities, Class pairClass)	Returns whether a given value selector *might* contain object assignable from pairClass (SerializablePairLong*).

Methods inherited from class java.lang.Object

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

Constructor Detail

FirstLastUtils

public FirstLastUtils()

Method Detail

selectorNeedsFoldCheck

public static boolean selectorNeedsFoldCheck(BaseObjectColumnValueSelector<?> valueSelector,
                                             @Nullable
                                             ColumnCapabilities valueSelectorCapabilities,
                                             Class pairClass)

Returns whether a given value selector *might* contain object assignable from pairClass (SerializablePairLong*).

readDoublePairFromVectorSelectors

@Nullable
public static SerializablePairLongDouble readDoublePairFromVectorSelectors(@Nullable
                                                                           boolean[] timeNullityVector,
                                                                           long[] timeVector,
                                                                           Object[] objectVector,
                                                                           int index)

readFloatPairFromVectorSelectors

@Nullable
public static SerializablePairLongFloat readFloatPairFromVectorSelectors(@Nullable
                                                                         boolean[] timeNullityVector,
                                                                         long[] timeVector,
                                                                         Object[] objectVector,
                                                                         int index)

readLongPairFromVectorSelectors

@Nullable
public static SerializablePairLongLong readLongPairFromVectorSelectors(@Nullable
                                                                       boolean[] timeNullityVector,
                                                                       long[] timeVector,
                                                                       Object[] objectVector,
                                                                       int index)