[][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.


ETag       = entity-tag

Example values


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>

pub fn tag(&self) -> &str[src]

Get the tag.

pub fn set_tag(&mut self, tag: String)[src]

Set the tag.


If the tag contains invalid characters.

pub fn strong_eq(&self, other: &EntityTag) -> bool[src]

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

pub fn weak_eq(&self, other: &EntityTag) -> bool[src]

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".

pub fn strong_ne(&self, other: &EntityTag) -> bool[src]

The inverse of EntityTag.strong_eq().

pub fn weak_ne(&self, other: &EntityTag) -> bool[src]

The inverse of EntityTag.weak_eq().

Trait Implementations

impl Clone for ETag[src]

impl Debug for ETag[src]

impl Deref for ETag[src]

type Target = EntityTag

The resulting type after dereferencing.

impl DerefMut for ETag[src]

impl Display for ETag[src]

impl From<ETag> for Header<'static>

impl Header for ETag[src]

impl HeaderFormat for ETag[src]

impl PartialEq<ETag> for ETag[src]

impl StructuralPartialEq for ETag[src]

Auto Trait Implementations

impl RefUnwindSafe for ETag

impl Send for ETag

impl Sync for ETag

impl Unpin for ETag

impl UnwindSafe for ETag

Blanket Implementations

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

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

impl<T> Borrow<T> for T where
    T: ?Sized

impl<T> BorrowMut<T> for T where
    T: ?Sized

impl<T> From<T> for T[src]

impl<T> HeaderClone for T where
    T: Sealed, 

impl<T, U> Into<U> for T where
    U: From<T>, 

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

type Owned = T

The resulting type after obtaining ownership.

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

impl<T, U> TryFrom<U> for T where
    U: Into<T>, 

type Error = Infallible

The type returned in the event of a conversion error.

impl<T, U> TryInto<U> for T where
    U: TryFrom<T>, 

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>,