Package com.spotify.zoltar

Interface Predictor<InputT,ValueT>

Type Parameters:

InputT - type of the feature extraction input.

ValueT - type of the prediction output.

Functional Interface:

This is a functional interface and can therefore be used as the assignment target for a lambda expression or method reference.

@FunctionalInterface
public interface Predictor<InputT,ValueT>

Entry point for prediction, it allows to perform E2E prediction given a recipe made of a Model, FeatureExtractor and a PredictFns.PredictFn. In most cases you should use the static factory methods.

Method Summary

Modifier and Type	Method	Description
default CompletionStage<List<Prediction<InputT,ValueT>>>	predict(InputT... input)	Perform prediction with a default scheduler, and practically infinite timeout.
default CompletionStage<List<Prediction<InputT,ValueT>>>	predict(Duration timeout, InputT... input)	Perform prediction with a default scheduler.
CompletionStage<List<Prediction<InputT,ValueT>>>	predict(ScheduledExecutorService scheduler, Duration timeout, InputT... input)	Functional interface.
default PredictorTimeoutScheduler	timeoutScheduler()	timeout scheduler for predict functions.

Method Detail

timeoutScheduler

default PredictorTimeoutScheduler timeoutScheduler()

timeout scheduler for predict functions.

predict

CompletionStage<List<Prediction<InputT,ValueT>>> predict(ScheduledExecutorService scheduler,
                                                               Duration timeout,
                                                               InputT... input)

Functional interface. You should perform E2E feature extraction and prediction. See DefaultPredictorBuilder.create(ModelLoader, FeatureExtractor, AsyncPredictFn) for an example of usage.

Parameters:

input - a list of inputs to perform feature extraction and prediction on.

timeout - implementation specific timeout.

scheduler - implementation specific scheduler.

predict

default CompletionStage<List<Prediction<InputT,ValueT>>> predict(Duration timeout,
                                                                       InputT... input)

Perform prediction with a default scheduler.

predict

default CompletionStage<List<Prediction<InputT,ValueT>>> predict(InputT... input)

Perform prediction with a default scheduler, and practically infinite timeout.