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TaskLifecycleProjection

substrate_core::event_store_port

Struct TaskLifecycleProjection 

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pub struct TaskLifecycleProjection;
Expand description

Projection that folds TaskLifecycleEvent into TaskProjectionState.

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impl Projection for TaskLifecycleProjection

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type State = TaskProjectionState

Rebuilt aggregate state.
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type Event = TaskLifecycleEvent

Domain event type consumed by this projection.
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fn initial() -> Self::State

State before any events are applied.
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fn apply(state: Self::State, event: &Self::Event) -> Self::State

Apply a single event to state, returning the new state.

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

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fn type_id(&self) -> TypeId

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

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fn borrow(&self) -> &T

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

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

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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, U> TryFrom<U> for T
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type Error = Infallible

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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

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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.