org.apache.druid.segment

Class MapVirtualColumn

java.lang.Object

org.apache.druid.segment.MapVirtualColumn

All Implemented Interfaces:

Cacheable, VirtualColumn

public class MapVirtualColumn
extends Object
implements VirtualColumn

Constructor Summary

Constructors

Constructor and Description
MapVirtualColumn(String keyDimension, String valueDimension, String outputName)

Method Summary

Modifier and Type	Method and Description
ColumnCapabilities	capabilities(String columnName)
boolean	equals(Object o)
byte[]	getCacheKey()
String	getKeyDimension()
String	getOutputName()
String	getValueDimension()
int	hashCode()
ColumnValueSelector<?>	makeColumnValueSelector(String columnName, ColumnSelectorFactory factory)
DimensionSelector	makeDimensionSelector(DimensionSpec dimensionSpec, ColumnSelectorFactory factory)
List<String>	requiredColumns()
String	toString()
boolean	usesDotNotation()

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface org.apache.druid.segment.VirtualColumn

canVectorize, capabilities, getBitmapIndex, makeColumnValueSelector, makeDimensionSelector, makeMultiValueVectorDimensionSelector, makeMultiValueVectorDimensionSelector, makeSingleValueVectorDimensionSelector, makeSingleValueVectorDimensionSelector, makeVectorObjectSelector, makeVectorObjectSelector, makeVectorValueSelector, makeVectorValueSelector

Constructor Detail

MapVirtualColumn

public MapVirtualColumn(String keyDimension,
                        String valueDimension,
                        String outputName)

Method Detail

makeDimensionSelector

public DimensionSelector makeDimensionSelector(DimensionSpec dimensionSpec,
                                               ColumnSelectorFactory factory)

Specified by:

makeDimensionSelector in interface VirtualColumn

makeColumnValueSelector

public ColumnValueSelector<?> makeColumnValueSelector(String columnName,
                                                      ColumnSelectorFactory factory)

Specified by:

makeColumnValueSelector in interface VirtualColumn

capabilities

public ColumnCapabilities capabilities(String columnName)

Specified by:

capabilities in interface VirtualColumn

requiredColumns

public List<String> requiredColumns()

Specified by:

requiredColumns in interface VirtualColumn

usesDotNotation

public boolean usesDotNotation()

Specified by:

usesDotNotation in interface VirtualColumn

getCacheKey

public byte[] getCacheKey()

Specified by:

getCacheKey in interface Cacheable

getKeyDimension

public String getKeyDimension()

getValueDimension

public String getValueDimension()

getOutputName

public String getOutputName()

Specified by:

getOutputName in interface VirtualColumn

equals

public boolean equals(Object o)

Overrides:

equals in class Object

hashCode

public int hashCode()

Overrides:

hashCode in class Object

toString

public String toString()

Overrides:

toString in class Object