org.apache.druid.segment

Interface BaseNullableColumnValueSelector

All Known Subinterfaces:

AggregateCombiner<T>, BaseDoubleColumnValueSelector, BaseFloatColumnValueSelector, BaseLongColumnValueSelector, BaseObjectColumnValueSelector<T>, ColumnValueSelector<T>, DimensionSelector, DoubleColumnSelector, FloatColumnSelector, HistoricalColumnSelector<T>, HistoricalDimensionSelector, LongColumnSelector, SettableColumnValueSelector<T>, SingleValueHistoricalDimensionSelector

All Known Implementing Classes:

AbstractDimensionSelector, BaseSingleValueDimensionSelector, ConstantDimensionSelector, ConstantExprEvalSelector, DoubleAggregateCombiner, DoubleWrappingDimensionSelector, ExpressionColumnValueSelector, FloatWrappingDimensionSelector, HyperLogLogCollectorAggregateCombiner, IncrementalIndexRowHolder, LongAggregateCombiner, LongSumAggregateCombiner, LongWrappingDimensionSelector, NilColumnValueSelector, NullableAggregateCombiner, ObjectAggregateCombiner, ObjectColumnSelector, SettableDimensionValueSelector, SettableDoubleColumnValueSelector, SettableFloatColumnValueSelector, SettableLongColumnValueSelector, SettableObjectColumnValueSelector, SingleLongInputCachingExpressionColumnValueSelector, SingleScanTimeDimensionSelector, SingleStringInputCachingExpressionColumnValueSelector, SingleStringInputDimensionSelector, StringFirstAggregateCombiner, StringLastAggregateCombiner

public interface BaseNullableColumnValueSelector

Null value checking polymorphic "part" of the ColumnValueSelector interface for primitive values. Users of BaseLongColumnValueSelector.getLong(), BaseDoubleColumnValueSelector.getDouble() and BaseFloatColumnValueSelector.getFloat() are required to check the nullability of the primitive types returned.

Method Summary

Modifier and Type	Method and Description
boolean	isNull() Returns true if selected primitive value is null for BaseFloatColumnValueSelector, BaseLongColumnValueSelector and BaseDoubleColumnValueSelector otherwise false.

Method Detail

isNull

@CalledFromHotLoop
boolean isNull()

Returns true if selected primitive value is null for BaseFloatColumnValueSelector, BaseLongColumnValueSelector and BaseDoubleColumnValueSelector otherwise false.