How to use

GraphQLUnion

in

com.oembedler.moon.graphql.engine.stereotype

public Class<?>[] getGraphQLUnionPossibleTypes() {
  GraphQLUnion graphQLUnion = getAnnotation(GraphQLUnion.class);
  return graphQLUnion != null ? graphQLUnion.possibleTypes() : new Class<?>[]{};
}

@GraphQLUnion(value = "Pet", possibleTypes = {Dog.class, Cat.class})
public interface PetsUnionType {
}