Struct KeyCondition

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pub struct KeyCondition<K> { /* private fields */ }

Expand description

A builder for a key condition expression, used in query operations

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impl<K> KeyCondition<K>
where K: Key,

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pub fn in_partition<V: Serialize>(partition: V) -> Self

Get items in the given partition

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Panics if the partition cannot be serialized to an AttributeValue.

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pub fn specific_item<V: Serialize>(self, sort: V) -> Self

Get the item where the sort key is equal to the given value

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Panics if the given value cannot be serialized to an AttributeValue.

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pub fn between<V: Serialize>(self, start: V, end: V) -> Self

Get items where the sort key is in a range between the start and end values, inclusive

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Panics if either of the given values cannot be serialized to an AttributeValue.

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pub fn less_than<V: Serialize>(self, sort: V) -> Self

Get items where the sort key is less than the given value

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Panics if the given value cannot be serialized to an AttributeValue.

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pub fn less_than_or_equal<V: Serialize>(self, sort: V) -> Self

Get items where the sort key is less than or equal to the given value

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Panics if the given value cannot be serialized to an AttributeValue.

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pub fn greater_than<V: Serialize>(self, sort: V) -> Self

Get items where the sort key is greater than the given value

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Panics if the given value cannot be serialized to an AttributeValue.

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pub fn greater_than_or_equal<V: Serialize>(self, sort: V) -> Self

Get items where the sort key is greater than or equal to the given value

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Panics if the given value cannot be serialized to an AttributeValue.

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pub fn begins_with(self, sort: impl Into<String>) -> Self

Get items where the sort key begins with the given value

Trait Implementations§

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impl<K> Clone for KeyCondition<K>

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fn clone(&self) -> Self

Returns a duplicate of the value. Read more

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fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more

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impl<K> Debug for KeyCondition<K>

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

Formats the value using the given formatter. Read more

Auto Trait Implementations§

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impl<K> UnwindSafe for KeyCondition<K>

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> CloneToUninit for T
where T: Clone,

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unsafe fn clone_to_uninit(&self, dest: *mut u8)

🔬This is a nightly-only experimental API. (clone_to_uninit)

Performs copy-assignment from self to dest. 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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