NawaMan/JavaElmExample

JavaElmExample

This project demonstrates how to use Java + Elm with the help of FunctionalJ.io.

Step 1 - Add dependency.

Add pom.xml dependency to functionalj-all version 0.5.8.0 or newer.

<dependency>
    <groupId>io.functionalj</groupId>
    <artifactId>functionalj-all</artifactId>
    <version>0.5.8.0</version>
</dependency>

See on GitHub

Step 2 - Java code.

Add Java classes specifying the data model - either Struct or Choice type. Also add the @Elm annotation to specify that Elm code should be generated.

baseModule specifies module in the generated Elm code -- default to FROM_PACAKGE_NAME.

generatedDirectory specifies the directory for the generated code -- default to ./generated/elm/.

@Struct
@Elm(baseModule = "", generatedDirectory = "elm/src/")
static interface PersonModel extends RestData {
    @Nullable String id();
    @Required String firstName();
    @Required String lastName();
    @Nullable String nickName();
    @Required Cape   cape();
}

@Choice
@Elm(baseModule = "", generatedDirectory = "elm/src/")
static interface CapeModel {
    void Color(String color);
    void None();
}

See on GitHub

That is it!!!!

How the JavaElm should generates two Elm file: Person.elm and Cape.

These file contains the declaration of those data types as well as the encoder/decoder of the data types as well as the list of those types.

Enjoy Coding!