pub struct UniqueValue;

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impl Clone for UniqueValue

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fn clone(&self) -> UniqueValue

Returns a copy 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 Debug for UniqueValue

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

Formats the value using the given formatter. Read more
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impl MapReduce for UniqueValue

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fn map<'doc>( &self, document: &'doc BorrowedDocument<'_> ) -> Result<Mappings<<UniqueValue as ViewSchema>::MappedKey<'doc>, <<UniqueValue as ViewSchema>::View as View>::Value>, Error>

The map function for this view. This function is responsible for emitting entries for any documents that should be contained in this View. If None is returned, the View will not include the document. See the user guide’s chapter on views for more information on how map works.
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fn reduce( &self, mappings: &[MappedValue<Self::MappedKey<'_>, <Self::View as View>::Value>], rereduce: bool ) -> Result<<Self::View as View>::Value, Error>

Returns a value that is produced by reducing a list of mappings into a single value. If rereduce is true, the values contained in the mappings have already been reduced at least one time. If an error of ReduceUnimplemented is returned, queries that ask for a reduce operation will return an error. See the user guide’s chapter on views for more information on how reduce works.
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impl View for UniqueValue

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type Collection = Unique

The collection this view belongs to
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type Key = String

The key for this view.
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type Value = ()

An associated type that can be stored with each entry in the view.
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fn name(&self) -> Name

The name of the view. Must be unique per collection.
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fn view_name(&self) -> ViewName

The namespaced name of the view.
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impl ViewSchema for UniqueValue

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type View = UniqueValue

The view this schema is defined for.
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type MappedKey<'doc> = <UniqueValue as View>::Key

The key type used during the map/reduce operation. Read more
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fn update_policy(&self) -> ViewUpdatePolicy

Returns the update policy for this view, which controls when and how the view’s data is updated. The provided implementation returns ViewUpdatePolicy::Lazy.
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fn version(&self) -> u64

The version of the view. Changing this value will cause indexes to be rebuilt.
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impl DefaultViewSerialization for UniqueValue

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Blanket Implementations§

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

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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impl<'a, T, E> AsTaggedExplicit<'a, E> for Twhere T: 'a,

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fn explicit(self, class: Class, tag: u32) -> TaggedParser<'a, Explicit, Self, E>

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impl<'a, T, E> AsTaggedImplicit<'a, E> for Twhere T: 'a,

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fn implicit( self, class: Class, constructed: bool, tag: u32 ) -> TaggedParser<'a, Implicit, Self, E>

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impl<T> Borrow<T> for Twhere 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 Twhere 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<U> for Twhere 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> Same for T

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type Output = T

Should always be Self
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impl<T> SerializedView for Twhere T: DefaultViewSerialization, <T as View>::Value: Serialize + DeserializeOwned,

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type Format = Pot

The serialization format for this view.
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fn format() -> <T as SerializedView>::Format

Returns the configured instance of Self::Format.
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fn deserialize(data: &[u8]) -> Result<Self::Value, Error>

Deserialize data as Self::Value using this views’s format.
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fn serialize(item: &Self::Value) -> Result<Vec<u8>, Error>

Serialize item using this views’s format.
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fn entries<Database>(database: &Database) -> View<'_, Database, Self, Self::Key>where Database: Connection,

Returns a builder for a view query or view reduce.
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fn entries_async<Database>( database: &Database ) -> AsyncView<'_, Database, Self, Self::Key>where Database: AsyncConnection,

Returns a builder for a view query or view reduce.
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impl<T> ToOwned for Twhere T: Clone,

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type Owned = T

The resulting type after obtaining ownership.
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fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
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fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more
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impl<T, U> TryFrom<U> for Twhere U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for Twhere 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.
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impl<V, T> VZip<V> for Twhere V: MultiLane<T>,

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fn vzip(self) -> V

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impl<T> WithSubscriber for T

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fn with_subscriber<S>(self, subscriber: S) -> WithDispatch<Self>where S: Into<Dispatch>,

Attaches the provided Subscriber to this type, returning a [WithDispatch] wrapper. Read more
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fn with_current_subscriber(self) -> WithDispatch<Self>

Attaches the current default Subscriber to this type, returning a [WithDispatch] wrapper. Read more