pub enum FetchConnection {
    TerminateOnSuccessfulCompletion,
    AllowReuse,
}
Available on crate features blocking-client or async-client only.
Expand description

A way to indicate how to treat the connection underlying the transport, potentially allowing to reuse it.

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TerminateOnSuccessfulCompletion

Use this variant if server should be informed that the operation is completed and no further commands will be issued at the end of the fetch operation or after deciding that no fetch operation should happen after references were listed.

When indicating the end-of-fetch, this flag is only relevant in protocol V2. Generally it only applies when using persistent transports.

In most explicit client side failure modes the end-of-operation’ notification will be sent to the server automatically.

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AllowReuse

Indicate that persistent transport connections can be reused by not sending an ‘end-of-operation’ notification to the server. This is useful if multiple fetch(…) calls are used in succession.

Note that this has no effect in case of non-persistent connections, like the ones over HTTP.

As an optimization, callers can use AllowReuse here as the server will also know the client is done if the connection is closed.

Trait Implementations§

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impl Default for FetchConnection

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fn default() -> Self

Returns the “default value” for a type. Read more

Auto Trait Implementations§

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

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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impl<T> Borrow<T> for Twhere T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for Twhere T: ?Sized,

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

Mutably borrows from an owned value. Read more
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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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

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fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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

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type Error = Infallible

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for Twhere U: TryFrom<T>,

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

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.