Struct linera_views::views::hashable_wrapper::WrappedHashableContainerView

pub struct WrappedHashableContainerView<C, W, O> { /* private fields */ }

A hash for ContainerView and storing of the hash for memoization purposes

Trait Implementations

impl<C, W, O> ClonableView<C> for WrappedHashableContainerView<C, W, O>

where C: Context + Send + Sync, ViewError: From<C::Error>, W: HashableView<C> + ClonableView<C> + Send + Sync, O: Serialize + DeserializeOwned + Send + Sync + Copy + PartialEq, W::Hasher: Hasher<Output = O>,

fn clone_unchecked(&mut self) -> Result<Self, ViewError>

Creates a clone of this view, sharing the underlying storage context but prone to data races which can corrupt the view state.

impl<C: Debug, W: Debug, O: Debug> Debug for WrappedHashableContainerView<C, W, O>

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

Formats the value using the given formatter.

impl<C, W, O> Deref for WrappedHashableContainerView<C, W, O>

type Target = W

The resulting type after dereferencing.

fn deref(&self) -> &W

Dereferences the value.

impl<C, W, O> DerefMut for WrappedHashableContainerView<C, W, O>

fn deref_mut(&mut self) -> &mut W

Mutably dereferences the value.

impl<C, W, O> HashableView<C> for WrappedHashableContainerView<C, W, O>

where C: Context + Send + Sync, ViewError: From<C::Error>, W: HashableView<C> + Send + Sync, O: Serialize + DeserializeOwned + Send + Sync + Copy + PartialEq, W::Hasher: Hasher<Output = O>,

type Hasher = <W as HashableView<C>>::Hasher

How to compute hashes.

fn hash_mut<'life0, 'async_trait>( &'life0 mut self, ) -> Pin<Box<dyn Future<Output = Result<<Self::Hasher as Hasher>::Output, ViewError>> + Send + 'async_trait>>

where Self: 'async_trait, 'life0: 'async_trait,

Computes the hash of the values.

fn hash<'life0, 'async_trait>( &'life0 self, ) -> Pin<Box<dyn Future<Output = Result<<Self::Hasher as Hasher>::Output, ViewError>> + Send + 'async_trait>>

where Self: 'async_trait, 'life0: 'async_trait,

Computes the hash of the values.

impl<C, W, O> OutputType for WrappedHashableContainerView<C, W, O>

where C: Context + Send + Sync, W: OutputType + Send + Sync, O: Send + Sync,

fn type_name() -> Cow<'static, str>

Type the name.

fn qualified_type_name() -> String

Qualified typename.

fn create_type_info(registry: &mut Registry) -> String

Create type information in the registry and return qualified typename.

async fn resolve( &self, ctx: &ContextSelectionSet<'_>, field: &Positioned<Field>, ) -> ServerResult<Value>

Resolve an output value to async_graphql::Value.

fn introspection_type_name(&self) -> Cow<'static, str>

Introspection type name

impl<C, W, O> View<C> for WrappedHashableContainerView<C, W, O>

where C: Context + Send + Sync, ViewError: From<C::Error>, W: HashableView<C> + Send + Sync, O: Serialize + DeserializeOwned + Send + Sync + Copy + PartialEq, W::Hasher: Hasher<Output = O>,

const NUM_INIT_KEYS: usize = _

The number of keys used for the initialization

fn context(&self) -> &C

Obtains a mutable reference to the internal context.

fn pre_load(context: &C) -> Result<Vec<Vec<u8>>, ViewError>

Creates the keys needed for loading the view

fn post_load(context: C, values: &[Option<Vec<u8>>]) -> Result<Self, ViewError>

Loads a view from the values

fn load<'async_trait>( context: C, ) -> Pin<Box<dyn Future<Output = Result<Self, ViewError>> + Send + 'async_trait>>

where Self: 'async_trait,

Loads a view

fn rollback(&mut self)

Discards all pending changes. After that flush should have no effect to storage.

fn has_pending_changes<'life0, 'async_trait>( &'life0 self, ) -> Pin<Box<dyn Future<Output = bool> + Send + 'async_trait>>

where Self: 'async_trait, 'life0: 'async_trait,

Returns true if flushing this view would result in changes to the persistent storage.

fn flush(&mut self, batch: &mut Batch) -> Result<bool, ViewError>

Persists changes to storage. This leaves the view still usable and is essentially neutral to the program running. Crash-resistant storage implementations are expected to accumulate the desired changes in the batch variable first. If the view is dropped without calling flush, staged changes are simply lost. The returned boolean indicates whether the operation removes the view or not.

fn clear(&mut self)

Clears the view. That can be seen as resetting to default. If the clear is followed by a flush then all the relevant data is removed on the storage.

fn new(context: C) -> Result<Self, ViewError>

Builds a trivial view that is already deleted