Package com.linkedin.feathr.common.value

Class AbstractFeatureFormatMapper<T>

java.lang.Object

com.linkedin.feathr.common.value.AbstractFeatureFormatMapper<T>

All Implemented Interfaces:

FeatureFormatMapper<T>

Direct Known Subclasses:

NTVFeatureFormatMapper, QuinceFeatureFormatMapper

public abstract class AbstractFeatureFormatMapper<T>
extends Object
implements FeatureFormatMapper<T>

Abstract base class for FeatureFormatMapper. Breaks down conversion behavior based on the various feature types.

Constructor Summary

Constructors

Constructor	Description
AbstractFeatureFormatMapper()

Method Summary

Modifier and Type	Method	Description
protected RuntimeException	cannotConvertToFeatureValue(FeatureType featureType, T externalValue)
protected RuntimeException	cannotConvertToFeatureValue(FeatureType featureType, T externalValue, Exception cause)
protected abstract T	fromBooleanFeatureValue(BooleanFeatureValue featureValue)
protected abstract T	fromCategoricalFeatureValue(CategoricalFeatureValue featureValue)
protected abstract T	fromCategoricalSetFeatureValue(CategoricalSetFeatureValue featureValue)
protected abstract T	fromDenseVectorFeatureValue(DenseVectorFeatureValue featureValue)
T	fromFeatureValue(FeatureValue featureValue)	Converts a feature value into the external representation
protected abstract T	fromNumericFeatureValue(NumericFeatureValue featureValue)
protected abstract T	fromTensorFeatureValue(TensorFeatureValue featureValue)
protected abstract T	fromTermVectorFeatureValue(TermVectorFeatureValue featureValue)
protected abstract BooleanFeatureValue	toBooleanFeatureValue(BooleanFeatureType featureType, T externalValue)
protected abstract CategoricalFeatureValue	toCategoricalFeatureValue(CategoricalFeatureType featureType, T externalValue)
protected abstract CategoricalSetFeatureValue	toCategoricalSetFeatureValue(CategoricalSetFeatureType featureType, T externalValue)
protected abstract DenseVectorFeatureValue	toDenseVectorFeatureValue(DenseVectorFeatureType featureType, T externalValue)
FeatureValue	toFeatureValue(FeatureType featureType, T externalValue)	Converts a datum in the external representation into the FeatureValue format.
protected abstract NumericFeatureValue	toNumericFeatureValue(NumericFeatureType featureType, T externalValue)
protected abstract TensorFeatureValue	toTensorFeatureValue(TensorFeatureType featureType, T externalValue)
protected abstract TermVectorFeatureValue	toTermVectorFeatureValue(TermVectorFeatureType featureType, T externalValue)

Methods inherited from class java.lang.Object

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

Constructor Details

AbstractFeatureFormatMapper

public AbstractFeatureFormatMapper()

Method Details

fromFeatureValue

public T fromFeatureValue(FeatureValue featureValue)

Description copied from interface: FeatureFormatMapper

Converts a feature value into the external representation

Specified by:

fromFeatureValue in interface FeatureFormatMapper<T>

Parameters:

featureValue - the FeatureValue

Returns:

the datum in the external representation

fromNumericFeatureValue

protected abstract T fromNumericFeatureValue(NumericFeatureValue featureValue)

fromBooleanFeatureValue

protected abstract T fromBooleanFeatureValue(BooleanFeatureValue featureValue)

fromCategoricalFeatureValue

protected abstract T fromCategoricalFeatureValue(CategoricalFeatureValue featureValue)

fromCategoricalSetFeatureValue

protected abstract T fromCategoricalSetFeatureValue(CategoricalSetFeatureValue featureValue)

fromTermVectorFeatureValue

protected abstract T fromTermVectorFeatureValue(TermVectorFeatureValue featureValue)

fromDenseVectorFeatureValue

protected abstract T fromDenseVectorFeatureValue(DenseVectorFeatureValue featureValue)

fromTensorFeatureValue

protected abstract T fromTensorFeatureValue(TensorFeatureValue featureValue)

toFeatureValue

public FeatureValue toFeatureValue(FeatureType featureType,
 T externalValue)

Description copied from interface: FeatureFormatMapper

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

Specified by:

toFeatureValue in interface FeatureFormatMapper<T>

Parameters:

featureType - type of this feature

externalValue - datum in the external representation

Returns:

datum represented as a FeatureValue

toNumericFeatureValue

protected abstract NumericFeatureValue toNumericFeatureValue(NumericFeatureType featureType,
 T externalValue)

toBooleanFeatureValue

protected abstract BooleanFeatureValue toBooleanFeatureValue(BooleanFeatureType featureType,
 T externalValue)

toCategoricalFeatureValue

protected abstract CategoricalFeatureValue toCategoricalFeatureValue(CategoricalFeatureType featureType,
 T externalValue)

toCategoricalSetFeatureValue

protected abstract CategoricalSetFeatureValue toCategoricalSetFeatureValue(CategoricalSetFeatureType featureType,
 T externalValue)

toTermVectorFeatureValue

protected abstract TermVectorFeatureValue toTermVectorFeatureValue(TermVectorFeatureType featureType,
 T externalValue)

toDenseVectorFeatureValue

protected abstract DenseVectorFeatureValue toDenseVectorFeatureValue(DenseVectorFeatureType featureType,
 T externalValue)

toTensorFeatureValue

protected abstract TensorFeatureValue toTensorFeatureValue(TensorFeatureType featureType,
 T externalValue)

cannotConvertToFeatureValue

protected RuntimeException cannotConvertToFeatureValue(FeatureType featureType,
 T externalValue,
 Exception cause)

cannotConvertToFeatureValue

protected RuntimeException cannotConvertToFeatureValue(FeatureType featureType,
 T externalValue)