Support Type Variable in Interface

sherl0cks commented 6 years ago

I'd like to do something similar to what I can do with Spring Data, where I can declare an interface with generics and then extend that interface with the appropriate type information and vert.x service proxies has the smarts to generate the appropriate information behind the scenes

For example, I'd like to use the following code without rewriting the same interface for every repository, which I anticipate to have several:


public interface Repository<T extends Aggregate> {
    void load(String aggregateIdentifier, Handler<AsyncResult<T>> resultHandler);

    void save(T aggregate, Handler<AsyncResult<Void>> resultHandler);
}

@ProxyGen
public interface DriverRepository extends Repository<Driver> {
}

public interface Aggregate {
    String identifier();
}

@DataObject(generateConverter = true)
public class Driver implements Aggregate {

    private String id;

    public Driver(JsonObject jsonObject) {
    }

    public Driver(String id) {
        this.id = id;
    }

    protected Driver() {
    }

    @Override
    public String identifier() {
        return id;
    }

    public String getId() {
        return id;
    }

    public void setId(String id) {
        this.id = id;
    }

    public JsonObject toJson() {
        JsonObject json = new JsonObject();
        return json;
    }
}