Struct mz_storage::controller::CollectionState

source · [−]

pub struct CollectionState<T> {
    pub description: CollectionDescription<T>,
    pub read_capabilities: MutableAntichain<T>,
    pub implied_capability: Antichain<T>,
    pub read_policy: ReadPolicy<T>,
    pub write_frontier: Antichain<T>,
    pub collection_metadata: CollectionMetadata,
}

Expand description

State maintained about individual collections.

Fields

description: CollectionDescription<T>

Description with which the collection was created

read_capabilities: MutableAntichain<T>

Accumulation of read capabilities for the collection.

This accumulation will always contain self.implied_capability, but may also contain capabilities held by others who have read dependencies on this collection.

implied_capability: Antichain<T>

The implicit capability associated with collection creation. This should never be less than the since of the associated persist collection.

read_policy: ReadPolicy<T>

The policy to use to downgrade self.implied_capability.

write_frontier: Antichain<T>

Reported write frontier.

collection_metadata: CollectionMetadata

Implementations

impl<T: Timestamp> CollectionState<T>

pub fn new(
    description: CollectionDescription<T>,
    since: Antichain<T>,
    write_frontier: Antichain<T>,
    metadata: CollectionMetadata
) -> Self

Creates a new collection state, with an initial read policy valid from since.

Trait Implementations

impl<T: Debug> Debug for CollectionState<T>

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

Formats the value using the given formatter. Read more

Auto Trait Implementations

impl<T> !RefUnwindSafe for CollectionState<T>

impl<T> Send for CollectionState<T>where
T: Send,

impl<T> Sync for CollectionState<T>where
T: Sync,

impl<T> Unpin for CollectionState<T>where
T: Unpin,

impl<T> !UnwindSafe for CollectionState<T>

Blanket Implementations

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

fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more

impl<T> Borrow<T> for Twhere
T: ?Sized,

const: unstable · source

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Immutably borrows from an owned value. Read more

impl<T> BorrowMut<T> for Twhere
T: ?Sized,

const: unstable · source

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

Mutably borrows from an owned value. Read more

impl<T> From<T> for T

const: unstable · source

fn from(t: T) -> T

Returns the argument unchanged.

impl<T> FutureExt for T

fn with_context(self, otel_cx: Context) -> WithContext<Self>

Attaches the provided Context to this type, returning a WithContext wrapper. Read more

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

const: unstable · source

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

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const ALIGN: usize = mem::align_of::<T>()

The alignment of pointer.

type Init = T

The type for initializers.

unsafe fn init(init: <T as Pointable>::Init) -> usize

Initializes a with the given initializer. Read more

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Dereferences the given pointer. Read more

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unsafe fn drop(ptr: usize)

Drops the object pointed to by the given pointer. Read more

impl<P, R> ProtoType<R> for Pwhere
R: RustType<P>,

fn into_rust(self) -> Result<R, TryFromProtoError>

See RustType::from_proto.

fn from_rust(rust: &R) -> P

See RustType::into_proto.

impl<T> Same<T> for T

type Output = T

Should always be Self

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

type Error = Infallible

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const: unstable · source

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U: TryFrom<T>,

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

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const: unstable · source

fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

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impl<V, T> VZip<V> for Twhere
V: MultiLane<T>,

fn vzip(self) -> V

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