Struct Migrator

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pub struct Migrator<P, T, FRO, FRN, FWO, FWN>where
    P: Send + Sync,
    T: Send + Sync,
    FRO: Fn(&P) -> BoxFuture<'_, Result<T, String>> + Sync + Send,
    FRN: Fn(&P) -> BoxFuture<'_, Result<T, String>> + Sync + Send,
    FWO: Fn(&P) -> BoxFuture<'_, Result<T, String>> + Sync + Send,
    FWN: Fn(&P) -> BoxFuture<'_, Result<T, String>> + Sync + Send,
{ /* private fields */ }

Expand description

The migrator is the primary interface for executing migration operations. It is configured through the MigratorBuilder and can be used to perform LaunchDarkly assisted technology migrations through the use of migration-based feature flags.

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impl<P, T, FRO, FRN, FWO, FWN> Migrator<P, T, FRO, FRN, FWO, FWN>
where P: Send + Sync, T: Send + Sync, FRO: Fn(&P) -> BoxFuture<'_, Result<T, String>> + Sync + Send, FRN: Fn(&P) -> BoxFuture<'_, Result<T, String>> + Sync + Send, FWO: Fn(&P) -> BoxFuture<'_, Result<T, String>> + Sync + Send, FWN: Fn(&P) -> BoxFuture<'_, Result<T, String>> + Sync + Send,

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pub async fn read( &mut self, context: &Context, flag_key: String, default_stage: Stage, payload: P, ) -> MigrationOriginResult<T>

Uses the provided flag key and context to execute a migration-backed read operation.

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pub async fn write( &mut self, context: &Context, flag_key: String, default_stage: Stage, payload: P, ) -> MigrationWriteResult<T>

Uses the provided flag key and context to execute a migration-backed write operation.

Auto Trait Implementations§

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impl<P, T, FRO, FRN, FWO, FWN> Freeze for Migrator<P, T, FRO, FRN, FWO, FWN>
where FRO: Freeze, FRN: Freeze, FWO: Freeze, FWN: Freeze,

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impl<P, T, FRO, FRN, FWO, FWN> !RefUnwindSafe for Migrator<P, T, FRO, FRN, FWO, FWN>

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impl<P, T, FRO, FRN, FWO, FWN> !Send for Migrator<P, T, FRO, FRN, FWO, FWN>

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impl<P, T, FRO, FRN, FWO, FWN> !Sync for Migrator<P, T, FRO, FRN, FWO, FWN>

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impl<P, T, FRO, FRN, FWO, FWN> Unpin for Migrator<P, T, FRO, FRN, FWO, FWN>
where FRO: Unpin, FRN: Unpin, FWO: Unpin, FWN: Unpin, P: Unpin,

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impl<P, T, FRO, FRN, FWO, FWN> !UnwindSafe for Migrator<P, T, FRO, FRN, FWO, FWN>

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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