org.apache.calcite.adapter.druid

Class ExtractionDimensionSpec

java.lang.Object

org.apache.calcite.adapter.druid.ExtractionDimensionSpec

All Implemented Interfaces:

DimensionSpec, DruidJson

public class ExtractionDimensionSpec
extends Object
implements DimensionSpec

Implementation of extraction function DimensionSpec.

The extraction function implementation returns dimension values transformed using the given extraction function.

Field Summary

Fields

Modifier and Type	Field and Description
private String	dimension
private ExtractionFunction	extractionFunction
private String	outputName
private DruidType	outputType

Constructor Summary

Constructors

Constructor and Description
ExtractionDimensionSpec(String dimension, ExtractionFunction extractionFunction, String outputName)
ExtractionDimensionSpec(String dimension, ExtractionFunction extractionFunction, String outputName, DruidType outputType)

Method Summary

Modifier and Type	Method and Description
String	getDimension()
ExtractionFunction	getExtractionFn()
String	getOutputName()
DruidType	getOutputType()
static Granularity	toQueryGranularity(DimensionSpec dimensionSpec)
void	write(com.fasterxml.jackson.core.JsonGenerator generator)

Methods inherited from class java.lang.Object

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

Field Detail

dimension

private final String dimension

extractionFunction

private final ExtractionFunction extractionFunction

outputName

private final String outputName

outputType

private final DruidType outputType

Constructor Detail

ExtractionDimensionSpec

public ExtractionDimensionSpec(String dimension,
                               ExtractionFunction extractionFunction,
                               String outputName)

ExtractionDimensionSpec

public ExtractionDimensionSpec(String dimension,
                               ExtractionFunction extractionFunction,
                               String outputName,
                               DruidType outputType)

Method Detail

getOutputName

public String getOutputName()

Specified by:

getOutputName in interface DimensionSpec

getOutputType

public DruidType getOutputType()

Specified by:

getOutputType in interface DimensionSpec

getExtractionFn

public ExtractionFunction getExtractionFn()

Specified by:

getExtractionFn in interface DimensionSpec

getDimension

public String getDimension()

Specified by:

getDimension in interface DimensionSpec

write

public void write(com.fasterxml.jackson.core.JsonGenerator generator)
           throws IOException

Specified by:

write in interface DruidJson

Throws:

IOException

toQueryGranularity

@Nullable
public static Granularity toQueryGranularity(DimensionSpec dimensionSpec)

Parameters:

dimensionSpec - Druid Dimesion spec object

Returns:

valid Granularity of floor extract or null when not possible.