Package org.apache.druid.query.dimension

Class PrefixFilteredDimensionSpec

java.lang.Object

org.apache.druid.query.dimension.BaseFilteredDimensionSpec

org.apache.druid.query.dimension.PrefixFilteredDimensionSpec

All Implemented Interfaces:

Cacheable, DimensionSpec

public class PrefixFilteredDimensionSpec
extends BaseFilteredDimensionSpec

Field Summary

Fields inherited from class org.apache.druid.query.dimension.BaseFilteredDimensionSpec

delegate

Constructor Summary

Constructors

Constructor	Description
PrefixFilteredDimensionSpec(DimensionSpec delegate, String prefix)

Method Summary

Modifier and Type	Method	Description
DimensionSelector	decorate(DimensionSelector selector)	Decorate a DimensionSelector, allowing custom transformation of underlying behavior (e.g.
boolean	equals(Object o)
byte[]	getCacheKey()	Get a byte array used as a cache key.
String	getPrefix()
int	hashCode()
String	toString()
DimensionSpec	withDimension(String newDimension)	Returns a copy of this DimensionSpec with the underlying dimension (the value of DimensionSpec.getDimension()) replaced by "newDimension".

Methods inherited from class org.apache.druid.query.dimension.BaseFilteredDimensionSpec

getDelegate, getDimension, getExtractionFn, getOutputName, getOutputType, mustDecorate, preservesOrdering

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.druid.query.dimension.DimensionSpec

canVectorize, decorate, decorate

Constructor Details

PrefixFilteredDimensionSpec

public PrefixFilteredDimensionSpec(DimensionSpec delegate,
 String prefix)

Method Details

getPrefix

public String getPrefix()

decorate

public DimensionSelector decorate(DimensionSelector selector)

Description copied from interface: DimensionSpec

Decorate a DimensionSelector, allowing custom transformation of underlying behavior (e.g. performing extraction functions in the case of ExtractionDimensionSpec, regex filtering in the case of RegexFilteredDimensionSpec, and so on).

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.

withDimension

public DimensionSpec withDimension(String newDimension)

Description copied from interface: DimensionSpec

Returns a copy of this DimensionSpec with the underlying dimension (the value of DimensionSpec.getDimension()) replaced by "newDimension".

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