Add support for graphql-java-annotations?

[exports]

Currently this project can discover schema automatically defined by graphql-java-tools, it would be good if we can support graphql-java-annotations too.

[apottere]

Do you happen to have ideas about how this could work? I don't use annotations so I'm not sure if I'm the right person to implement this.

[apottere]

@bbakerman do you have any input on how this might work?

[mushketyk]

Hi @exports

I suggest to read discussion in #20. I've described a way to access Spring beans from graphql-annotations data fetchers and @apottere is working on making it possible in graphql-spring-boot.

[seetharamani]

Instead of using graphql-spring-boot
I have used graphql-java-servlet to work along with graphql-java-annotations, as suggested in the issue #20. I am able to start my application and access the graphql schema in the url /graphql/schema.json. But when I try to execute my any query or mutation, I am getting below exception.

Caused by: java.lang.NoSuchFieldException: newAuthor
	at java.lang.Class.getDeclaredField(Class.java:2070) ~[na:1.8.0_162]
	at graphql.annotations.dataFetchers.MethodDataFetcher.getFieldValue(MethodDataFetcher.java:139) ~[graphql-java-annotations-5.3.jar!/:na]
	at graphql.annotations.dataFetchers.MethodDataFetcher.get(MethodDataFetcher.java:61) ~[graphql-java-annotations-5.3.jar!/:na]

Schema itself looks good with my Query type listing newAuthor as a field. But its not resolving from the Query GraphQLObjectType

Below is how I defined my Query

import com.coxautodev.graphql.tools.GraphQLQueryResolver;
import graphql.annotations.annotationTypes.GraphQLField;
import graphql.annotations.annotationTypes.GraphQLName;
import graphql.annotations.annotationTypes.GraphQLNonNull;
import lombok.AllArgsConstructor;
import org.springframework.stereotype.Component;

@Component
@AllArgsConstructor
@GraphQLName("query")
public class Query implements GraphQLQueryResolver {

    private final AuthorRepository authorRepository;
    private final BookRepository bookRepository;

    @GraphQLField
    public Iterable<Book> findAllBooks() {
        return bookRepository.findAll();
    }

    @GraphQLField
    public Iterable<Author> findAllAuthors() {
        return authorRepository.findAll();
    }

    @GraphQLField
    public long countBooks() {
        return bookRepository.count();
    }

    @GraphQLField
    public long countAuthors() {
        return authorRepository.count();
    }
}

Here is the screenshot of my generated schema showing the mutation type have newAuthor field.

[benneq]

I guess the problem is, that graphql-java-annotations inspects the class itself, but not the instantiated singleton object.
I created an issue here ( Enigmatis/graphql-java-annotations#187 ), asking to allow inspecting objects, instead of classes only.