[][src]Enum rocket::http::hyper::header::IfRange

pub enum IfRange {
    EntityTag(EntityTag),
    Date(HttpDate),
}

If-Range header, defined in RFC7233

If a client has a partial copy of a representation and wishes to have an up-to-date copy of the entire representation, it could use the Range header field with a conditional GET (using either or both of If-Unmodified-Since and If-Match.) However, if the precondition fails because the representation has been modified, the client would then have to make a second request to obtain the entire current representation.

The If-Range header field allows a client to "short-circuit" the second request. Informally, its meaning is as follows: if the representation is unchanged, send me the part(s) that I am requesting in Range; otherwise, send me the entire representation.

ABNF

If-Range = entity-tag / HTTP-date

Example values

Examples

use hyper::header::{Headers, IfRange, EntityTag};

let mut headers = Headers::new();
headers.set(IfRange::EntityTag(EntityTag::new(false, "xyzzy".to_owned())));
// extern crate time;

use hyper::header::{Headers, IfRange, HttpDate};
use time::{self, Duration};

let mut headers = Headers::new();
headers.set(IfRange::Date(HttpDate(time::now() - Duration::days(1))));

Variants

EntityTag(EntityTag)

The entity-tag the client has of the resource

Date(HttpDate)

The date when the client retrieved the resource

Trait Implementations

impl Clone for IfRange[src]

impl Debug for IfRange[src]

impl Display for IfRange[src]

impl From<IfRange> for Header<'static>

impl Header for IfRange[src]

impl HeaderFormat for IfRange[src]

impl PartialEq<IfRange> for IfRange[src]

impl StructuralPartialEq for IfRange[src]

Auto Trait Implementations

impl RefUnwindSafe for IfRange

impl Send for IfRange

impl Sync for IfRange

impl Unpin for IfRange

impl UnwindSafe for IfRange

Blanket Implementations

impl<T> Any for T where
    T: 'static + ?Sized
[src]

impl<T, I> AsResult<T, I> for T where
    I: Input, 

impl<T> Borrow<T> for T where
    T: ?Sized
[src]

impl<T> BorrowMut<T> for T where
    T: ?Sized
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impl<T> From<T> for T[src]

impl<T> HeaderClone for T where
    T: Sealed, 
[src]

impl<T, U> Into<U> for T where
    U: From<T>, 
[src]

impl<T> IntoCollection<T> for T

impl<T> Same<T> for T

type Output = T

Should always be Self

impl<T> ToOwned for T where
    T: Clone
[src]

type Owned = T

The resulting type after obtaining ownership.

impl<T> ToString for T where
    T: Display + ?Sized
[src]

impl<T, U> TryFrom<U> for T where
    U: Into<T>, 
[src]

type Error = Infallible

The type returned in the event of a conversion error.

impl<T, U> TryInto<U> for T where
    U: TryFrom<T>, 
[src]

type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.

impl<T> Typeable for T where
    T: Any

impl<V, T> VZip<V> for T where
    V: MultiLane<T>,