Struct juniper::Registry

pub struct Registry<'r> {
    pub types: FnvHashMap<Name, MetaType<'r>>,
}

A type registry used to build schemas

The registry gathers metadata for all types in a schema. It provides convenience methods to convert types implementing the GraphQLType trait into Type instances and automatically registers them.

Fields

types: FnvHashMap<Name, MetaType<'r>>

Currently registered types

Methods

impl<'r> Registry<'r>

pub fn new(types: FnvHashMap<Name, MetaType<'r>>) -> Registry<'r>

Construct a new registry

pub fn get_type<T>(&mut self, info: &T::TypeInfo) -> Type<'r> where     T: GraphQLType,

Get the Type instance for a given GraphQL type

If the registry hasn't seen a type with this name before, it will construct its metadata and store it.

pub fn field<T>(&mut self, name: &str, info: &T::TypeInfo) -> Field<'r> where     T: GraphQLType,

Create a field with the provided name

pub fn arg<T>(&mut self, name: &str, info: &T::TypeInfo) -> Argument<'r> where     T: GraphQLType + FromInputValue,

Create an argument with the provided name

pub fn arg_with_default<T>(     &mut self,     name: &str,     value: &T,     info: &T::TypeInfo ) -> Argument<'r> where     T: GraphQLType + ToInputValue + FromInputValue,

Create an argument with a default value

When called with type T, the actual argument will be given the type Option<T>.

pub fn build_scalar_type<T>(&mut self, info: &T::TypeInfo) -> ScalarMeta<'r> where     T: FromInputValue + GraphQLType,

Create a scalar meta type

This expects the type to implement FromInputValue.

pub fn build_list_type<T: GraphQLType>(     &mut self,     info: &T::TypeInfo ) -> ListMeta<'r>

Create a list meta type

pub fn build_nullable_type<T: GraphQLType>(     &mut self,     info: &T::TypeInfo ) -> NullableMeta<'r>

Create a nullable meta type

pub fn build_object_type<T>(     &mut self,     info: &T::TypeInfo,     fields: &[Field<'r>] ) -> ObjectMeta<'r> where     T: GraphQLType,

Create an object meta type builder

To prevent infinite recursion by enforcing ordering, this returns a function that needs to be called with the list of fields on the object.

pub fn build_enum_type<T>(     &mut self,     info: &T::TypeInfo,     values: &[EnumValue] ) -> EnumMeta<'r> where     T: FromInputValue + GraphQLType,

Create an enum meta type

pub fn build_interface_type<T>(     &mut self,     info: &T::TypeInfo,     fields: &[Field<'r>] ) -> InterfaceMeta<'r> where     T: GraphQLType,

Create an interface meta type builder, by providing a type info object.

pub fn build_union_type<T>(     &mut self,     info: &T::TypeInfo,     types: &[Type<'r>] ) -> UnionMeta<'r> where     T: GraphQLType,

Create a union meta type builder

pub fn build_input_object_type<T>(     &mut self,     info: &T::TypeInfo,     args: &[Argument<'r>] ) -> InputObjectMeta<'r> where     T: FromInputValue + GraphQLType,

Create an input object meta type builder