com.facebook.litho.specmodels.processor

Class PropNameInterStageStore

java.lang.Object

com.facebook.litho.specmodels.processor.PropNameInterStageStore

public class PropNameInterStageStore
extends java.lang.Object

This store retains prop names across multi-module annotation processor runs. This is needed as prop names are derived from method parameters which aren't persisted in the Java 7 bytecode and thus cannot be inferred if compilation occurs across modules.

The props names are serialized and stored as resources within the output JAR, where they can be read from again at a later point in time.

Constructor Summary

Constructors

Constructor and Description
PropNameInterStageStore(javax.annotation.processing.Filer filer)

Method Summary

Modifier and Type	Method and Description
java.util.Optional<ImmutableList<java.lang.String>>	loadNames(javax.lang.model.element.Name qualifiedName)
void	saveNames(SpecModel specModel) Saves the prop names of the given spec model at a well-known path within the resources.

Methods inherited from class java.lang.Object

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

Constructor Detail

PropNameInterStageStore

public PropNameInterStageStore(javax.annotation.processing.Filer filer)

Method Detail

loadNames

public java.util.Optional<ImmutableList<java.lang.String>> loadNames(javax.lang.model.element.Name qualifiedName)

Returns:

List of names in order of definition. List may be empty if there are no custom props defined. Value may not be present if loading for the given spec model failed, i.e. we don't have inter-stage resources on the class path to facilitate the lookup.

saveNames

public void saveNames(SpecModel specModel)
               throws java.io.IOException

Saves the prop names of the given spec model at a well-known path within the resources.

Throws:

java.io.IOException