Txdata

Struct Txdata 

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pub struct Txdata<T> {
    pub inputs: Option<Inputs>,
    pub outputs: Option<Outputs>,
    pub mutations: Option<Mutations<T>>,
}
Expand description

The canonical payload format of a crate::Commitlog.

This type may eventually be defined in the core datastore crate.

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§inputs: Option<Inputs>§outputs: Option<Outputs>§mutations: Option<Mutations<T>>

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impl<T> Txdata<T>

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pub fn is_empty(&self) -> bool

true if self contains neither inputs, outputs nor mutations.

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impl<T: Encode> Txdata<T>

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pub const VERSION: u8 = 1u8

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pub fn encode(&self, buf: &mut impl BufWriter)

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pub fn decode<'a, V, R>( visitor: &mut V, reader: &mut R, ) -> Result<Self, V::Error>
where V: Visitor<Row = T>, R: BufReader<'a>,

Decode Self from the given buffer.

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pub fn consume<'a, V, R>( visitor: &mut V, reader: &mut R, ) -> Result<(), V::Error>
where V: Visitor<Row = T>, R: BufReader<'a>,

Variant of Self::decode which doesn’t allocate Self.

Useful for folding traversals where the visitor state suffices. Note that both Inputs and Outputs are still allocated to satisfy the Visitor trait, but Mutations aren’t.

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pub fn skip<'a, V, R>(visitor: &mut V, reader: &mut R) -> Result<(), V::Error>
where V: Visitor<Row = T>, R: BufReader<'a>,

Trait Implementations§

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impl<T: Clone> Clone for Txdata<T>

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fn clone(&self) -> Txdata<T>

Returns a duplicate of the value. Read more
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fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl<T: Debug> Debug for Txdata<T>

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fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter. Read more
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impl<T: Encode> Encode for Txdata<T>

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fn encode_record<W: BufWriter>(&self, writer: &mut W)

Encode self to the given buffer.
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impl<T: PartialEq> PartialEq for Txdata<T>

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fn eq(&self, other: &Txdata<T>) -> bool

Tests for self and other values to be equal, and is used by ==.
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fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.
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impl<T> StructuralPartialEq for Txdata<T>

Auto Trait Implementations§

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impl<T> Freeze for Txdata<T>

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impl<T> RefUnwindSafe for Txdata<T>
where T: RefUnwindSafe,

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impl<T> Send for Txdata<T>
where T: Sync + Send,

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impl<T> Sync for Txdata<T>
where T: Sync + Send,

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impl<T> Unpin for Txdata<T>

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impl<T> UnwindSafe for Txdata<T>
where T: RefUnwindSafe,

Blanket Implementations§

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impl<T> Any for T
where 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 T
where 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 T
where 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> CloneToUninit for T
where T: Clone,

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unsafe fn clone_to_uninit(&self, dest: *mut u8)

🔬This is a nightly-only experimental API. (clone_to_uninit)
Performs copy-assignment from self to dest. 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 T
where 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> IntoEither for T

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fn into_either(self, into_left: bool) -> Either<Self, Self>

Converts self into a Left variant of Either<Self, Self> if into_left is true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more
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fn into_either_with<F>(self, into_left: F) -> Either<Self, Self>
where F: FnOnce(&Self) -> bool,

Converts self into a Left variant of Either<Self, Self> if into_left(&self) returns true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more
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impl<T> Same for T

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type Output = T

Should always be Self
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impl<T> ToOwned for T
where T: Clone,

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type Owned = T

The resulting type after obtaining ownership.
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fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
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fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more
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impl<T, U> TryFrom<U> for T
where 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 T
where 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.
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impl<V, T> VZip<V> for T
where V: MultiLane<T>,

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fn vzip(self) -> V