Uses of Interface
org.apache.druid.segment.BaseNullableColumnValueSelector

Packages that use BaseNullableColumnValueSelector

Package	Description
org.apache.druid.query.aggregation
org.apache.druid.query.aggregation.cardinality
org.apache.druid.query.aggregation.first
org.apache.druid.query.aggregation.last
org.apache.druid.query.filter
org.apache.druid.segment
org.apache.druid.segment.historical
org.apache.druid.segment.incremental
org.apache.druid.segment.selector.settable
org.apache.druid.segment.virtual

Uses of BaseNullableColumnValueSelector in org.apache.druid.query.aggregation

Classes in org.apache.druid.query.aggregation with type parameters of type BaseNullableColumnValueSelector

Modifier and Type	Class and Description
class	NullableAggregatorFactory<T extends BaseNullableColumnValueSelector> Abstract class with functionality to wrap Aggregator, BufferAggregator and AggregateCombiner to support nullable aggregations for SQL compatibility.

Subinterfaces of BaseNullableColumnValueSelector in org.apache.druid.query.aggregation

Modifier and Type	Interface and Description
interface	AggregateCombiner<T> AggregateCombiner is used to fold rollup aggregation results from serveral "rows" of different indexes during index merging (see IndexMerger).

Classes in org.apache.druid.query.aggregation that implement BaseNullableColumnValueSelector

Modifier and Type	Class and Description
class	DoubleAggregateCombiner Specialization of AggregateCombiner for primitive double aggregations.
class	LongAggregateCombiner Specialization of AggregateCombiner for primitive long aggregations.
class	LongSumAggregateCombiner
class	NullableAggregateCombiner<T> The result of a NullableAggregateCombiner will be null if all the values to be combined are null values or no values are combined at all.
class	ObjectAggregateCombiner<T> Specialization of AggregateCombiner for object aggregations.

Constructors in org.apache.druid.query.aggregation with parameters of type BaseNullableColumnValueSelector

Constructor and Description
NullableAggregator(Aggregator delegate, BaseNullableColumnValueSelector selector)
NullableBufferAggregator(BufferAggregator delegate, BaseNullableColumnValueSelector nullSelector)

Uses of BaseNullableColumnValueSelector in org.apache.druid.query.aggregation.cardinality

Classes in org.apache.druid.query.aggregation.cardinality that implement BaseNullableColumnValueSelector

Modifier and Type	Class and Description
class	HyperLogLogCollectorAggregateCombiner

Uses of BaseNullableColumnValueSelector in org.apache.druid.query.aggregation.first

Classes in org.apache.druid.query.aggregation.first that implement BaseNullableColumnValueSelector

Modifier and Type	Class and Description
class	StringFirstAggregateCombiner

Uses of BaseNullableColumnValueSelector in org.apache.druid.query.aggregation.last

Classes in org.apache.druid.query.aggregation.last that implement BaseNullableColumnValueSelector

Modifier and Type	Class and Description
class	StringLastAggregateCombiner

Uses of BaseNullableColumnValueSelector in org.apache.druid.query.filter

Methods in org.apache.druid.query.filter with parameters of type BaseNullableColumnValueSelector

Modifier and Type	Method and Description
static ValueMatcher	ValueMatcher.nullValueMatcher(BaseNullableColumnValueSelector selector)

Uses of BaseNullableColumnValueSelector in org.apache.druid.segment

Subinterfaces of BaseNullableColumnValueSelector in org.apache.druid.segment

Modifier and Type	Interface and Description
interface	BaseDoubleColumnValueSelector Double value selecting polymorphic "part" of the ColumnValueSelector interface.
interface	BaseFloatColumnValueSelector Float value selecting polymorphic "part" of the ColumnValueSelector interface.
interface	BaseLongColumnValueSelector Long value selecting polymorphic "part" of the ColumnValueSelector interface.
interface	BaseObjectColumnValueSelector<T> Object value selecting polymorphic "part" of the ColumnValueSelector interface.
interface	ColumnValueSelector<T> Base type for interfaces that manage column value selection, e.g.
interface	DimensionSelector
interface	DoubleColumnSelector This interface is convenient for implementation of "double-sourcing" ColumnValueSelectors, it provides default implementations for all ColumnValueSelector's methods except BaseDoubleColumnValueSelector.getDouble().
interface	FloatColumnSelector This interface is convenient for implementation of "float-sourcing" ColumnValueSelectors, it provides default implementations for all ColumnValueSelector's methods except BaseFloatColumnValueSelector.getFloat().
interface	LongColumnSelector This interface is convenient for implementation of "long-sourcing" ColumnValueSelectors, it provides default implementations for all ColumnValueSelector's methods except BaseLongColumnValueSelector.getLong().

Classes in org.apache.druid.segment that implement BaseNullableColumnValueSelector

Modifier and Type	Class and Description
class	AbstractDimensionSelector An abstract class that provides an implementation of AbstractDimensionSelector.getObject().
class	BaseSingleValueDimensionSelector
class	ConstantDimensionSelector
class	ConstantExprEvalSelector
class	DoubleWrappingDimensionSelector
class	FloatWrappingDimensionSelector
class	LongWrappingDimensionSelector
class	NilColumnValueSelector Represents "absent" column.
class	ObjectColumnSelector<T> This class is convenient for implementation of "object-sourcing" ColumnValueSelectors, it provides default implementations for all ColumnValueSelector's methods except BaseObjectColumnValueSelector.getObject() and BaseObjectColumnValueSelector.classOfObject().
class	SingleScanTimeDimensionSelector A special DimensionSelector for projected time columns - it assumes time values are scanned once and values are grouped together (i.e.

Uses of BaseNullableColumnValueSelector in org.apache.druid.segment.historical

Subinterfaces of BaseNullableColumnValueSelector in org.apache.druid.segment.historical

Modifier and Type	Interface and Description
interface	HistoricalColumnSelector<T>
interface	HistoricalDimensionSelector Specialization for DimensionSelector queryable via offsets from HistoricalCursor.
interface	SingleValueHistoricalDimensionSelector

Uses of BaseNullableColumnValueSelector in org.apache.druid.segment.incremental

Classes in org.apache.druid.segment.incremental that implement BaseNullableColumnValueSelector

Modifier and Type	Class and Description
class	IncrementalIndexRowHolder IncrementalIndexRowHolder is a simple IncrementalIndexRowHolder.get()/IncrementalIndexRowHolder.set(org.apache.druid.segment.incremental.IncrementalIndexRow) holder of IncrementalIndexRow.

Uses of BaseNullableColumnValueSelector in org.apache.druid.segment.selector.settable

Subinterfaces of BaseNullableColumnValueSelector in org.apache.druid.segment.selector.settable

Modifier and Type	Interface and Description
interface	SettableColumnValueSelector<T> SettableColumnValueSelectors are used in QueryableIndexIndexableAdapter.RowIteratorImpl.

Classes in org.apache.druid.segment.selector.settable that implement BaseNullableColumnValueSelector

Modifier and Type	Class and Description
class	SettableDimensionValueSelector Settable implementation of DimensionSelector.
class	SettableDoubleColumnValueSelector
class	SettableFloatColumnValueSelector
class	SettableLongColumnValueSelector
class	SettableObjectColumnValueSelector<T>

Uses of BaseNullableColumnValueSelector in org.apache.druid.segment.virtual

Classes in org.apache.druid.segment.virtual that implement BaseNullableColumnValueSelector

Modifier and Type	Class and Description
class	ExpressionColumnValueSelector
class	SingleLongInputCachingExpressionColumnValueSelector Like ExpressionColumnValueSelector, but caches the most recently computed value and re-uses it in the case of runs in the underlying column.
class	SingleStringInputCachingExpressionColumnValueSelector Like ExpressionColumnValueSelector, but caches results for the first CACHE_SIZE dictionary IDs of a string column.
class	SingleStringInputDimensionSelector A DimensionSelector decorator that computes an expression on top of it.