com.spotify.flo.freezer

Class EvaluatingContext

java.lang.Object

com.spotify.flo.freezer.EvaluatingContext

public class EvaluatingContext
extends Object

A wrapper context that allows for evaluating specific tasks. This class is intended to be used in pairing with PersistingContext.

See evaluateTaskFrom(Path).

todo: support reading and writing from arbitrary Path types

Constructor Summary

Constructors

Constructor and Description
EvaluatingContext(Path basePath, EvalContext delegate)

Method Summary

Modifier and Type	Method and Description
<T> EvalContext.Value<T>	evaluateTaskFrom(Path persistedTask) Evaluate a persisted task, expecting it's input values to exist as "_out" files in the same directory.

Methods inherited from class java.lang.Object

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

Constructor Detail

EvaluatingContext

public EvaluatingContext(Path basePath,
                         EvalContext delegate)

Method Detail

evaluateTaskFrom

public <T> EvalContext.Value<T> evaluateTaskFrom(Path persistedTask)

Evaluate a persisted task, expecting it's input values to exist as "_out" files in the same directory.

The output of the evaluated task will be persisted in the same directory.

Type Parameters:

T - The task output type

Parameters:

persistedTask - A path to the persisted task file that should be evaluated

Returns:

The task output value