allsource_core::application::services::projection

Struct EventCounterProjection

pub struct EventCounterProjection { /* private fields */ }

Expand description

Event counter projection - counts events by type

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impl EventCounterProjection

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pub fn new(name: impl Into<String>) -> Self

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pub fn get_count(&self, event_type: &str) -> u64

Get count for a specific event type

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pub fn get_all_counts(&self) -> Vec<(String, u64)>

Get all event type counts

Trait Implementations§

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impl Projection for EventCounterProjection

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fn name(&self) -> &str

Get the name of this projection

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fn process(&self, event: &Event) -> Result<()>

Process an event and update the projection state

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fn get_state(&self, event_type: &str) -> Option<Value>

Get the current state of the projection for an entity

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fn clear(&self)

Clear all projection state

Auto Trait Implementations§

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impl !UnwindSafe for EventCounterProjection

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> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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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 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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