Struct juniper::SchemaType

pub struct SchemaType<'a, S> { /* private fields */ }

Metadata for a schema

Implementations

impl<'a, S> SchemaType<'a, S>

pub fn new<QueryT, MutationT, SubscriptionT>( query_info: &QueryT::TypeInfo, mutation_info: &MutationT::TypeInfo, subscription_info: &SubscriptionT::TypeInfo ) -> Self

where S: ScalarValue + 'a, QueryT: GraphQLType<S>, MutationT: GraphQLType<S>, SubscriptionT: GraphQLType<S>,

Create a new schema.

pub fn set_description(&mut self, description: impl Into<Cow<'a, str>>)

Add a description.

pub fn add_directive(&mut self, directive: DirectiveType<'a, S>)

Add a directive like skip or include.

pub fn type_by_name(&self, name: &str) -> Option<TypeType<'_, S>>

Get a type by name.

pub fn concrete_type_by_name(&self, name: &str) -> Option<&MetaType<'_, S>>

Get a concrete type by name.

pub fn query_type(&self) -> TypeType<'_, S>

Get the query type from the schema.

pub fn concrete_query_type(&self) -> &MetaType<'_, S>

Get the concrete query type from the schema.

pub fn mutation_type(&self) -> Option<TypeType<'_, S>>

Get the mutation type from the schema.

pub fn concrete_mutation_type(&self) -> Option<&MetaType<'_, S>>

Get the concrete mutation type from the schema.

pub fn subscription_type(&self) -> Option<TypeType<'_, S>>

Get the subscription type.

pub fn concrete_subscription_type(&self) -> Option<&MetaType<'_, S>>

Get the concrete subscription type.

pub fn type_list(&self) -> Vec<TypeType<'_, S>>

Get a list of types.

pub fn concrete_type_list(&self) -> Vec<&MetaType<'_, S>>

Get a list of concrete types.

pub fn make_type(&self, t: &Type<'_>) -> TypeType<'_, S>

Make a type.

pub fn directive_list(&self) -> Vec<&DirectiveType<'_, S>>

Get a list of directives.

pub fn directive_by_name(&self, name: &str) -> Option<&DirectiveType<'_, S>>

Get directive by name.

pub fn type_overlap(&self, t1: &MetaType<'_, S>, t2: &MetaType<'_, S>) -> bool

Determine if there is an overlap between types.

pub fn possible_types(&self, t: &MetaType<'_, S>) -> Vec<&MetaType<'_, S>>

A list of possible typeees for a given type.

pub fn is_possible_type( &self, abstract_type: &MetaType<'_, S>, possible_type: &MetaType<'_, S> ) -> bool

If the abstract type is possible.

pub fn is_subtype<'b>(&self, sub_type: &Type<'b>, super_type: &Type<'b>) -> bool

If the type is a subtype of another type.

pub fn is_named_subtype( &self, sub_type_name: &str, super_type_name: &str ) -> bool

If the type is a named subtype.

Trait Implementations

impl<'a, S: Debug> Debug for SchemaType<'a, S>

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl<'a, S, T> From<&'a SchemaType<'a, S>> for Document<'a, T>

where S: ScalarValue + 'a, T: Text<'a> + Default,

fn from(input: &'a SchemaType<'a, S>) -> Document<'a, T>

Converts to this type from the input type.

impl<'a, S> GraphQLObject<S> for SchemaType<'a, S>

where S: ScalarValue + ScalarValue + 'a,

fn mark()

An arbitrary function without meaning.

impl<'a, S> GraphQLType<S> for SchemaType<'a, S>

where S: ScalarValue + ScalarValue + 'a,

fn name(_: &Self::TypeInfo) -> Option<&'static str>

Returns name of this GraphQLType to expose.

fn meta<'r>( info: &Self::TypeInfo, registry: &mut Registry<'r, S> ) -> MetaType<'r, S>

where S: 'r,

Returns MetaType representing this GraphQLType.

impl<'a, S> GraphQLValue<S> for SchemaType<'a, S>

where S: ScalarValue + ScalarValue + 'a,

type Context = SchemaType<'a, S>

Context type for this GraphQLValue.

type TypeInfo = ()

Type that may carry additional schema information for this GraphQLValue.

fn type_name<'__i>(&self, info: &'__i Self::TypeInfo) -> Option<&'__i str>

Returns name of the GraphQLType exposed by this GraphQLValue.

fn resolve_field( &self, info: &Self::TypeInfo, field: &str, args: &Arguments<'_, S>, executor: &Executor<'_, '_, Self::Context, S> ) -> ExecutionResult<S>

Resolves the value of a single field on this GraphQLValue.

fn concrete_type_name(&self, _: &Self::Context, _: &Self::TypeInfo) -> String

Returns the concrete GraphQLType name for this GraphQLValue being an interface, an union or an object.

fn resolve_into_type( &self, info: &Self::TypeInfo, type_name: &str, selection_set: Option<&[Selection<'_, S>]>, executor: &Executor<'_, '_, Self::Context, S> ) -> ExecutionResult<S>

Resolves this GraphQLValue (being an interface or an union) into a concrete downstream object type.

fn resolve( &self, info: &Self::TypeInfo, selection_set: Option<&[Selection<'_, S>]>, executor: &Executor<'_, '_, Self::Context, S> ) -> ExecutionResult<S>

Resolves the provided selection_set against this GraphQLValue.

impl<'a, S> GraphQLValueAsync<S> for SchemaType<'a, S>

where S: ScalarValue + Send + Sync + ScalarValue + 'a, for<'__fa__a> SchemaType<'__fa__a, S>: Sync,

fn resolve_field_async<'b>( &'b self, info: &'b Self::TypeInfo, field: &'b str, args: &'b Arguments<'_, S>, executor: &'b Executor<'_, '_, Self::Context, S> ) -> BoxFuture<'b, ExecutionResult<S>>

Resolves the value of a single field on this GraphQLValueAsync.

fn resolve_into_type_async<'a>( &'a self, info: &'a Self::TypeInfo, type_name: &str, selection_set: Option<&'a [Selection<'a, S>]>, executor: &'a Executor<'a, 'a, Self::Context, S> ) -> BoxFuture<'a, ExecutionResult<S>>

Resolves this GraphQLValueAsync (being an interface or an union) into a concrete downstream object type.

fn resolve_async<'a>( &'a self, info: &'a Self::TypeInfo, selection_set: Option<&'a [Selection<'_, S>]>, executor: &'a Executor<'_, '_, Self::Context, S> ) -> BoxFuture<'a, ExecutionResult<S>>

Resolves the provided selection_set against this GraphQLValueAsync.

impl<'a, S> IsOutputType<S> for SchemaType<'a, S>

where S: ScalarValue + ScalarValue + 'a,

fn mark()

An arbitrary function without meaning.

impl<'a, S> Context for SchemaType<'a, S>