[][src]Struct rocket::http::hyper::header::ETag

pub struct ETag(pub EntityTag);

ETag header, defined in RFC7232

The ETag header field in a response provides the current entity-tag for the selected representation, as determined at the conclusion of handling the request. An entity-tag is an opaque validator for differentiating between multiple representations of the same resource, regardless of whether those multiple representations are due to resource state changes over time, content negotiation resulting in multiple representations being valid at the same time, or both. An entity-tag consists of an opaque quoted string, possibly prefixed by a weakness indicator.

ABNF

ETag       = entity-tag

Example values

Examples

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

let mut headers = Headers::new();
headers.set(ETag(EntityTag::new(false, "xyzzy".to_owned())));
use hyper::header::{Headers, ETag, EntityTag};

let mut headers = Headers::new();
headers.set(ETag(EntityTag::new(true, "xyzzy".to_owned())));

Methods from Deref<Target = EntityTag>

Get the tag.

Set the tag.

Panics

If the tag contains invalid characters.

For strong comparison two entity-tags are equivalent if both are not weak and their opaque-tags match character-by-character.

For weak comparison two entity-tags are equivalent if their opaque-tags match character-by-character, regardless of either or both being tagged as "weak".

The inverse of EntityTag.strong_eq().

The inverse of EntityTag.weak_eq().

Trait Implementations

impl From<ETag> for Header<'static>

impl PartialEq<ETag> for ETag
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impl Deref for ETag
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The resulting type after dereferencing.

impl Clone for ETag
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Performs copy-assignment from source. Read more

impl Display for ETag
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impl DerefMut for ETag
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impl Debug for ETag
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impl HeaderFormat for ETag
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impl Header for ETag
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Auto Trait Implementations

impl Send for ETag

impl Sync for ETag

Blanket Implementations

impl<T> From for T
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impl<T> ToString for T where
    T: Display + ?Sized
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impl<T, U> Into for T where
    U: From<T>, 
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impl<T> ToOwned for T where
    T: Clone
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impl<T, U> TryFrom for T where
    T: From<U>, 
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🔬 This is a nightly-only experimental API. (try_from)

The type returned in the event of a conversion error.

impl<T> Borrow for T where
    T: ?Sized
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impl<T> Any for T where
    T: 'static + ?Sized
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impl<T, U> TryInto for T where
    U: TryFrom<T>, 
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🔬 This is a nightly-only experimental API. (try_from)

The type returned in the event of a conversion error.

impl<T> BorrowMut for T where
    T: ?Sized
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impl<T> HeaderClone for T where
    T: Sealed, 
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impl<T> Typeable for T where
    T: Any

Get the TypeId of this object.

impl<T> IntoCollection for T

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