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Protocol

delta_kernel::actions

Struct Protocol 

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pub struct Protocol { /* private fields */ }

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impl Protocol

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pub fn min_reader_version(&self) -> i32

Available on crate feature internal-api only.

This protocol’s minimum reader version

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pub fn min_writer_version(&self) -> i32

Available on crate feature internal-api only.

This protocol’s minimum writer version

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pub fn reader_features(&self) -> Option<&[TableFeature]>

Available on crate feature internal-api only.

Get the reader features for the protocol

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pub fn writer_features(&self) -> Option<&[TableFeature]>

Available on crate feature internal-api only.

Get the writer features for the protocol

Trait Implementations§

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impl Clone for Protocol

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fn clone(&self) -> Protocol

Returns a duplicate of the value. Read more
1.0.0 (const: unstable) · Source§

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl Debug for Protocol

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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 Default for Protocol

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fn default() -> Protocol

Returns the “default value” for a type. Read more
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impl<'de> Deserialize<'de> for Protocol

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fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>
where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer. Read more
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impl Eq for Protocol

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impl From<Protocol> for StructData
where Protocol: ToSchema, i32: Into<Scalar>, Option<Vec<TableFeature>>: Into<Scalar>,

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fn from(value: Protocol) -> Self

Converts to this type from the input type.
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impl From<Protocol> for Scalar
where Protocol: Into<StructData>,

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fn from(value: Protocol) -> Self

Converts to this type from the input type.
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impl IntoEngineData for Protocol
where i32: TryInto<Scalar>, Option<Vec<TableFeature>>: TryInto<Scalar>, Error: From<<i32 as TryInto<Scalar>>::Error> + From<<Option<Vec<TableFeature>> as TryInto<Scalar>>::Error>,

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fn into_engine_data( self, schema: SchemaRef, engine: &dyn Engine, ) -> DeltaResult<Box<dyn EngineData>>

Available on crate feature internal-api only.
Consume this type to produce a single-row EngineData using the provided schema.
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impl PartialEq for Protocol

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fn eq(&self, other: &Protocol) -> bool

Equality operator ==. Read more
1.0.0 (const: unstable) · Source§

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=. Read more
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impl Serialize for Protocol

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fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>
where __S: Serializer,

Serialize this value into the given Serde serializer. Read more
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impl StructuralPartialEq for Protocol

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impl ToSchema for Protocol

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fn to_schema() -> StructType

Available on crate feature internal-api only.

Auto Trait Implementations§

Blanket Implementations§

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impl<T> Allocation for T
where T: RefUnwindSafe + Send + Sync,

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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> AsAny for T
where T: Any + Send + Sync,

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fn any_ref(&self) -> &(dyn Any + Send + Sync + 'static)

Obtains a dyn Any reference to the object: Read more
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fn as_any(self: Arc<T>) -> Arc<dyn Any + Send + Sync> ⓘ

Obtains an Arc<dyn Any> reference to the object: Read more
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fn into_any(self: Box<T>) -> Box<dyn Any + Send + Sync>

Converts the object to Box<dyn Any>: Read more
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fn type_name(&self) -> &'static str

Convenient wrapper for std::any::type_name, since Any does not provide it and Any::type_id is useless as a debugging aid (its Debug is just a mess of hex digits).
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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> DeserializeOwned for T
where T: for<'de> Deserialize<'de>,

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impl<T> DynPartialEq for T
where T: PartialEq + AsAny,

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fn dyn_eq(&self, other: &(dyn Any + 'static)) -> bool

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impl<Q, K> Equivalent<K> for Q
where Q: Eq + ?Sized, K: Borrow<Q> + ?Sized,

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fn equivalent(&self, key: &K) -> bool

Checks if this value is equivalent to the given key. Read more
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impl<Q, K> Equivalent<K> for Q
where Q: Eq + ?Sized, K: Borrow<Q> + ?Sized,

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fn equivalent(&self, key: &K) -> bool

Compare self to key and return true if they are equal.
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impl<Q, K> Equivalent<K> for Q
where Q: Eq + ?Sized, K: Borrow<Q> + ?Sized,

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fn equivalent(&self, key: &K) -> bool

Checks if this value is equivalent to the given key. Read more
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impl<T> FoldWithOption for T

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fn fold_with<U>(self, opt: Option<U>, f: impl FnOnce(Self, U) -> Self) -> Self

Available on crate feature internal-api only.
Applies an optional fold operation f to self if opt is Some; otherwise returns self unchanged. Read more
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fn try_fold_with<U, E>( self, opt: Option<U>, f: impl FnOnce(Self, U) -> Result<Self, E>, ) -> Result<Self, E>

Available on crate feature internal-api only.
Fallible fold_with: applies Result-returning f to self if opt is Some, otherwise returns self unchanged (wrapped in Ok).
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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> GetStructField for T
where T: ToDataType,

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fn get_struct_field(name: impl Into<String>) -> StructField

Available on crate feature internal-api only.
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impl<T> Instrument for T

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fn instrument(self, span: Span) -> Instrumented<Self> ⓘ

Instruments this type with the provided Span, returning an Instrumented wrapper. Read more
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fn in_current_span(self) -> Instrumented<Self> ⓘ

Instruments this type with the current Span, returning an Instrumented wrapper. Read more
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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> PolicyExt for T
where T: ?Sized,

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fn and<P, B, E>(self, other: P) -> And<T, P>
where T: Sized + Policy<B, E>, P: Policy<B, E>,

Create a new Policy that returns Action::Follow only if self and other return Action::Follow. Read more
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fn or<P, B, E>(self, other: P) -> Or<T, P>
where T: Sized + Policy<B, E>, P: Policy<B, E>,

Create a new Policy that returns Action::Follow if either self or other returns Action::Follow. 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> ToDataType for T
where T: ToSchema,

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fn to_data_type() -> DataType

Available on crate feature internal-api only.
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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 = !

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<KernelType, ArrowType> TryIntoArrow<ArrowType> for KernelType
where ArrowType: TryFromKernel<KernelType>,

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fn try_into_arrow(self) -> Result<ArrowType, ArrowError>

Available on crate feature arrow-conversion and (crate features arrow-conversion or declarative-plans or default-engine-base) only.
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impl<KernelType, ArrowType> TryIntoKernel<KernelType> for ArrowType
where KernelType: TryFromArrow<ArrowType>,

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fn try_into_kernel(self) -> Result<KernelType, ArrowError>

Available on crate feature arrow-conversion and (crate features arrow-conversion or declarative-plans or default-engine-base) only.
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impl<V, T> VZip<V> for T
where V: MultiLane<T>,

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fn vzip(self) -> V

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impl<T> WithSubscriber for T

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fn with_subscriber<S>(self, subscriber: S) -> WithDispatch<Self> ⓘ
where S: Into<Dispatch>,

Attaches the provided Subscriber to this type, returning a WithDispatch wrapper. Read more
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fn with_current_subscriber(self) -> WithDispatch<Self> ⓘ

Attaches the current default Subscriber to this type, returning a WithDispatch wrapper. Read more