matrix_sdk_common::linked_chunk::relational

Struct RelationalLinkedChunk

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pub struct RelationalLinkedChunk<Item, Gap> { /* private fields */ }
Expand description

A LinkedChunk but with a relational layout, similar to what we would have in a database.

This is used by memory stores. The idea is to have a data layout that is similar for memory stores and for relational database stores, to represent a LinkedChunk.

This type is also designed to receive Update. Applying Updates directly on a LinkedChunk is not ideal and particularly not trivial as the Updates do not match the internal data layout of the LinkedChunk, they have been designed for storages, like a relational database for example.

This type is not as performant as LinkedChunk (in terms of memory layout, CPU caches etc.). It is only designed to be used in memory stores, which are mostly used for test purposes or light usage of the SDK.

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impl<Item, Gap> RelationalLinkedChunk<Item, Gap>

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pub fn new() -> Self

Create a new relational linked chunk.

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pub fn apply_updates( &mut self, room_id: &RoomId, updates: Vec<Update<Item, Gap>>, )

Apply Updates. That’s the only way to write data inside this relational linked chunk.

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impl<Item, Gap> RelationalLinkedChunk<Item, Gap>
where Gap: Clone, Item: Clone,

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pub fn reload_chunks<const CAP: usize>( &self, room_id: &RoomId, builder: &mut LinkedChunkBuilder<CAP, Item, Gap>, ) -> Result<(), String>

Reloads the chunks.

Return an error result if the data was malformed in the struct, with a string message explaining details about the error.

Trait Implementations§

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impl<Item: Debug, Gap: Debug> Debug for RelationalLinkedChunk<Item, Gap>

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

Formats the value using the given formatter. Read more
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impl<Item, Gap> Default for RelationalLinkedChunk<Item, Gap>

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fn default() -> Self

Returns the “default value” for a type. Read more

Auto Trait Implementations§

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impl<Item, Gap> Freeze for RelationalLinkedChunk<Item, Gap>

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impl<Item, Gap> RefUnwindSafe for RelationalLinkedChunk<Item, Gap>
where Item: RefUnwindSafe, Gap: RefUnwindSafe,

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impl<Item, Gap> Send for RelationalLinkedChunk<Item, Gap>
where Item: Send, Gap: Send,

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impl<Item, Gap> Sync for RelationalLinkedChunk<Item, Gap>
where Item: Sync, Gap: Sync,

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impl<Item, Gap> Unpin for RelationalLinkedChunk<Item, Gap>
where Item: Unpin, Gap: Unpin,

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impl<Item, Gap> UnwindSafe for RelationalLinkedChunk<Item, Gap>
where Item: UnwindSafe, Gap: UnwindSafe,

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, W> HasTypeWitness<W> for T
where W: MakeTypeWitness<Arg = T>, T: ?Sized,

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const WITNESS: W = W::MAKE

A constant of the type witness
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impl<T> Identity for T
where T: ?Sized,

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const TYPE_EQ: TypeEq<T, <T as Identity>::Type> = TypeEq::NEW

Proof that Self is the same type as Self::Type, provides methods for casting between Self and Self::Type.
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type Type = T

The same type as Self, used to emulate type equality bounds (T == U) with associated type equality constraints (T: Identity<Type = U>).
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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 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, U> TryFrom<U> for T
where 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 T
where 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 T
where 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
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impl<T> AsyncTraitDeps for T

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impl<T> ErasedDestructor for T
where T: 'static,

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impl<T> MaybeSendSync for T

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impl<T> SendOutsideWasm for T
where T: Send,

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impl<T> SyncOutsideWasm for T
where T: Sync,