io.druid.segment.virtual

Class ExpressionSelectors

java.lang.Object

io.druid.segment.virtual.ExpressionSelectors

public class ExpressionSelectors
extends Object

Method Summary

Modifier and Type	Method and Description
static DimensionSelector	makeDimensionSelector(ColumnSelectorFactory columnSelectorFactory, Expr expression, ExtractionFn extractionFn)
static FloatColumnSelector	makeFloatColumnSelector(ColumnSelectorFactory columnSelectorFactory, Expr expression, float nullValue)
static LongColumnSelector	makeLongColumnSelector(ColumnSelectorFactory columnSelectorFactory, Expr expression, long nullValue)
static ExpressionObjectSelector	makeObjectColumnSelector(ColumnSelectorFactory columnSelectorFactory, Expr expression)

Methods inherited from class java.lang.Object

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

Method Detail

makeObjectColumnSelector

public static ExpressionObjectSelector makeObjectColumnSelector(ColumnSelectorFactory columnSelectorFactory,
                                                                Expr expression)

makeLongColumnSelector

public static LongColumnSelector makeLongColumnSelector(ColumnSelectorFactory columnSelectorFactory,
                                                        Expr expression,
                                                        long nullValue)

makeFloatColumnSelector

public static FloatColumnSelector makeFloatColumnSelector(ColumnSelectorFactory columnSelectorFactory,
                                                          Expr expression,
                                                          float nullValue)

makeDimensionSelector

public static DimensionSelector makeDimensionSelector(ColumnSelectorFactory columnSelectorFactory,
                                                      Expr expression,
                                                      ExtractionFn extractionFn)