[−][src]Trait openapi_context::context::Has

pub trait Has<T> {
    fn get(&self) -> &T;

    fn get_mut(&mut self) -> &mut T;

    fn set(&mut self, value: T);
}

Defines methods for accessing, modifying, adding and removing the data stored in a context. Used to specify the requirements that a hyper service makes on a generic context type that it receives with a request, e.g.

struct MyService<C> {
    marker: PhantomData<C>,
}

impl<C> hyper::service::Service for MyService<C>
    where C: Has<MyItem> + Send + 'static
{
    type ReqBody = ContextualPayload<hyper::Body, C>;
    type ResBody = hyper::Body;
    type Error = std::io::Error;
    type Future = Box<dyn Future<Item=hyper::Response<Self::ResBody>, Error=Self::Error>>;
    fn call(&mut self, req : hyper::Request<Self::ReqBody>) -> Self::Future {
        let (head, body) = req.into_parts();
        do_something_with_my_item(Has::<MyItem>::get(&body.context));
        Box::new(ok(hyper::Response::new(hyper::Body::empty())))
    }
}

Required methods

fn get(&self) -> &T

Get an immutable reference to the value.

fn get_mut(&mut self) -> &mut T

Get a mutable reference to the value.

fn set(&mut self, value: T)

Set the value.

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Implementors

impl<C> Has<Option<AuthData>> for ContextBuilder<Option<AuthData>, C>[src]

impl<C> Has<Option<Authorization>> for ContextBuilder<Option<Authorization>, C>[src]

impl<C> Has<XSpanId> for ContextBuilder<XSpanId, C>[src]

impl<C: Has<Option<AuthData>>> Has<Option<AuthData>> for ContextBuilder<Option<Authorization>, C>[src]

impl<C: Has<Option<AuthData>>> Has<Option<AuthData>> for ContextBuilder<XSpanId, C>[src]

impl<C: Has<Option<Authorization>>> Has<Option<Authorization>> for ContextBuilder<Option<AuthData>, C>[src]

impl<C: Has<Option<Authorization>>> Has<Option<Authorization>> for ContextBuilder<XSpanId, C>[src]

impl<C: Has<XSpanId>> Has<XSpanId> for ContextBuilder<Option<AuthData>, C>[src]

impl<C: Has<XSpanId>> Has<XSpanId> for ContextBuilder<Option<Authorization>, C>[src]

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