class RestfulGraphDatabase {

    @GET
    @Path( PATH_RELATIONSHIP_INDEX )
    public Response getRelationshipIndexRoot()
    {
        if ( actions.getRelationshipIndexNames().length == 0 )
        {
            return output.noContent();
        }
        return output.ok( actions.relationshipIndexRoot() );
    }

    public  RestfulGraphDatabase( @Context InputFormat input,
                                 @Context OutputFormat output,
                                 @Context DatabaseActions actions,
                                 @Context Configuration config );

}