Struct ProfiledOperator

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pub struct ProfiledOperator { /* private fields */ }

Expand description

Wraps a pull-based Operator to collect runtime statistics.

Each call to next() is timed and the output rows are counted. Statistics are written into a SharedProfileStats handle so they can be collected after execution completes.

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impl ProfiledOperator

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pub fn new(inner: Box<dyn Operator>, stats: SharedProfileStats) -> Self

Creates a new profiled wrapper around the given operator.

Trait Implementations§

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impl Operator for ProfiledOperator

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fn next(&mut self) -> OperatorResult

Pulls the next batch of data. Returns None when exhausted.

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fn reset(&mut self)

Resets to initial state so you can iterate again.

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fn name(&self) -> &'static str

Returns a name for debugging/explain output.

Auto Trait Implementations§

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impl !UnwindSafe for ProfiledOperator

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, 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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