BaseObjectColumnValueSelector (druid-processing 27.0.0 API)

All Known Subinterfaces:

AggregateCombiner<T>, ColumnValueSelector<T>, DimensionSelector, DoubleColumnSelector, FloatColumnSelector, HistoricalColumnSelector<T>, HistoricalDimensionSelector, LongColumnSelector, SettableColumnValueSelector<T>, SingleValueHistoricalDimensionSelector

All Known Implementing Classes:

AbstractDimensionSelector, BaseExpressionColumnValueSelector, BaseSingleValueDimensionSelector, ConstantDimensionSelector, ConstantExprEvalSelector, ConstantMultiValueDimensionSelector, DoubleAggregateCombiner, DoubleWrappingDimensionSelector, ExpressionColumnValueSelector, ExpressionMultiValueDimensionSelector, FloatWrappingDimensionSelector, HyperLogLogCollectorAggregateCombiner, IncrementalIndexRowHolder, IndexedTableColumnValueSelector, IndexedTableDimensionSelector, LongAggregateCombiner, LongSumAggregateCombiner, LongWrappingDimensionSelector, NestedFieldVirtualColumn.FieldDimensionSelector, NestedFieldVirtualColumn.RawFieldColumnSelector, NestedFieldVirtualColumn.RawFieldLiteralColumnValueSelector, NilColumnValueSelector, NullableNumericAggregateCombiner, ObjectAggregateCombiner, ObjectColumnSelector, PossiblyNullColumnValueSelector, PossiblyNullDimensionSelector, RowBasedExpressionColumnValueSelector, SettableDimensionValueSelector, SettableDoubleColumnValueSelector, SettableFloatColumnValueSelector, SettableLongColumnValueSelector, SettableObjectColumnValueSelector, SingleLongInputCachingExpressionColumnValueSelector, SingleScanTimeDimensionSelector, SingleStringInputCachingExpressionColumnValueSelector, SingleStringInputDeferredEvaluationExpressionDimensionSelector, StringFirstAggregateCombiner, StringLastAggregateCombiner
```
public interface BaseObjectColumnValueSelector<T>
```
Object value selecting polymorphic "part" of the ColumnValueSelector interface. Users of getObject() are encouraged to reduce the parameter/field/etc. type to BaseObjectColumnValueSelector to make it impossible to accidently call any method other than getObject(). All implementations of this interface MUST also implement ColumnValueSelector.

- Method Summary
  
  All Methods Instance Methods Abstract Methods
  Modifier and Type Method and Description
  
  Class<? extends T> classOfObject()
  
  T getObject()

All Methods Instance Methods Abstract Methods
Modifier and Type	Method and Description
`Class<? extends T>`	`classOfObject()`
`T`	`getObject()`

Method Detail

getObject
```
@Nullable
T getObject()
```

classOfObject
```
Class<? extends T> classOfObject()
```

Interface BaseObjectColumnValueSelector<T>

Method Summary

Method Detail

getObject

classOfObject