io.druid.segment

Interface ColumnSelectorFactory

All Known Subinterfaces:

Cursor

public interface ColumnSelectorFactory

Factory class for MetricSelectors

Method Summary

Methods

Modifier and Type	Method and Description
DimensionSelector	makeDimensionSelector(String dimensionName, ExtractionFn extractionFn)
FloatColumnSelector	makeFloatColumnSelector(String columnName)
LongColumnSelector	makeLongColumnSelector(String columnName)
ObjectColumnSelector	makeObjectColumnSelector(String columnName)

Method Detail

makeDimensionSelector

DimensionSelector makeDimensionSelector(String dimensionName,
                                      @Nullable
                                      ExtractionFn extractionFn)

makeFloatColumnSelector

FloatColumnSelector makeFloatColumnSelector(String columnName)

makeLongColumnSelector

LongColumnSelector makeLongColumnSelector(String columnName)

makeObjectColumnSelector

ObjectColumnSelector makeObjectColumnSelector(String columnName)