Package com.linkedin.feathr.common

Interface Summary

Interface	Description
FeatureExtractor<SOURCE_DATA>	A feature extractor that extracts FeatureValue from source data.
ParameterizedFeatureExtractor<SOURCE_DATA,PARAM>	This extension of the FeatureExtractor rely on extra parameters to extract features.
TypedTensor	TypedTensor builds on top of @link{TensorType} and @{TensorData} and can be generated from tensor operators that change the shape.

Class Summary

Class	Description
AutoTensorizableTypes	Mappings from Feathr FeatureTypes to their "auto-tensorized" tensor type.
CoercingTensorData	Coerce types in any TensorData to the one requested by the client.
ColumnUtils	Utility function to build internal flat array representation based on the types of the input.
Equal	Compare whether two tensor data are equal.
ErasedEntityTaggedFeature	A TaggedFeatureName whose String tags have been "erased", i.e.
FeatureDependencyGraph	A dependency graph for feature anchors and feature derivations.
FeatureError	An error associated with a particular feature containing an error msg and the corresponding FeatureErrorCode
FeatureRef	Represents a fully-qualified reference to a feature.
FeatureTypeConfig	This class encapsulates the type definition for a feature.
FeatureTypeConfigDeserializer	Config deserializer for FeatureType config.
FeatureValue	Describes the basic representation of a feature value in Feathr.
FeatureVariableResolver	FeatureVariableResolver takes a FeatureValue object for member variable during MVEL expression evaluation, and then resolve the value for that variable.
GenericTypedTensor	This is the base tensor class, may be created from the basic properties, from a feature or operator applied to another tensor
Hasher	Generate hash for a tensor based on column types and values stored in the tensor.
PegasusDefaultFeatureValueResolver	This class extracts default FeatureValue from pegasus models
PegasusFeatureTypeResolver	This class maps from the pegasus models for feature types to Frame's common domain models for feature types and vice versa.
TaggedFeatureName	A tuple of (key tag, feature name) Essentially this is a feature name annotated with info on how we plan to query it.
TaggedFeatureUtils
TensorUtils	INTERNAL debugging utility functions.

Enum Summary

Enum	Description
FeatureAggregationType	Feature aggregation types
FeatureErrorCode	Error code associated with a feature request
FeatureTypes	An Enum that defines the supported feature types in feathr.

Annotation Types Summary

Annotation Type	Description
Experimental	Marks the target of this annotation as an experimental feature that may evolve in future, or may be removed entirely.
InternalApi	An annotation indicating that the target is part of a module-private "internal API" and SHOULD NOT be used by external modules.