com.linkedin.feathr.common.value

Interface FeatureFormatMapper<T>

Type Parameters:

T - type of the external representation

All Known Implementing Classes:

AbstractFeatureFormatMapper, NTVFeatureFormatMapper, QuinceFeatureFormatMapper

public interface FeatureFormatMapper<T>

A mapper, or translator, that can convert between the standard FeatureValue representation and some other external representation.

Method Summary

Modifier and Type	Method and Description
T	fromFeatureValue(FeatureValue featureValue) Converts a feature value into the external representation
FeatureValue	toFeatureValue(FeatureType featureType, T externalValue) Converts a datum in the external representation into the FeatureValue format.

Method Detail

fromFeatureValue

T fromFeatureValue(FeatureValue featureValue)

Converts a feature value into the external representation

Parameters:

featureValue - the FeatureValue

Returns:

the datum in the external representation

toFeatureValue

FeatureValue toFeatureValue(FeatureType featureType,
                            T externalValue)

Converts a datum in the external representation into the FeatureValue format. The FeatureType of the feature must be known.

Parameters:

featureType - type of this feature

externalValue - datum in the external representation

Returns:

datum represented as a FeatureValue