Package org.apache.druid.query.lookup

Class LookupExtractionFn

java.lang.Object

org.apache.druid.query.extraction.DimExtractionFn

org.apache.druid.query.extraction.FunctionalExtraction

org.apache.druid.query.lookup.LookupExtractionFn

All Implemented Interfaces:

Cacheable, ExtractionFn

public class LookupExtractionFn
extends FunctionalExtraction

Nested Class Summary

Nested classes/interfaces inherited from interface org.apache.druid.query.extraction.ExtractionFn

ExtractionFn.ExtractionType

Constructor Summary

Constructors

Constructor	Description
LookupExtractionFn(LookupExtractor lookup, boolean retainMissingValue, String replaceMissingValueWith, Boolean injective, Boolean optimize)

Method Summary

Modifier and Type	Method	Description
boolean	equals(Object o)
byte[]	getCacheKey()	Get a byte array used as a cache key.
LookupExtractor	getLookup()
String	getReplaceMissingValueWith()
int	hashCode()
boolean	isInjective()
boolean	isOptimize()
boolean	isRetainMissingValue()
String	toString()

Methods inherited from class org.apache.druid.query.extraction.FunctionalExtraction

apply, getExtractionType, preservesOrdering

Methods inherited from class org.apache.druid.query.extraction.DimExtractionFn

apply, apply

Methods inherited from class java.lang.Object

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

Constructor Details

LookupExtractionFn

public LookupExtractionFn(LookupExtractor lookup,
 boolean retainMissingValue,
 @Nullable
 String replaceMissingValueWith,
 @Nullable
 Boolean injective,
 @Nullable
 Boolean optimize)

Method Details

getLookup

public LookupExtractor getLookup()

isRetainMissingValue

public boolean isRetainMissingValue()

Overrides:

isRetainMissingValue in class FunctionalExtraction

getReplaceMissingValueWith

public String getReplaceMissingValueWith()

Overrides:

getReplaceMissingValueWith in class FunctionalExtraction

isInjective

public boolean isInjective()

Overrides:

isInjective in class FunctionalExtraction

isOptimize

public boolean isOptimize()

getCacheKey

public byte[] getCacheKey()

Description copied from interface: Cacheable

Get a byte array used as a cache key.

Returns:

bytes to be used as cache key - or null if this object should not be cached.

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