Struct ExecutionStateView 

pub struct ExecutionStateView<C> {
    pub system: SystemExecutionStateView<C>,
    pub users: HashedReentrantCollectionView<C, ApplicationId, KeyValueStoreView<C>>,
    pub stream_event_counts: MapView<C, StreamId, u32>,
}

A view accessing the execution state of a chain.

Fields

system: SystemExecutionStateView<C>

System application.

users: HashedReentrantCollectionView<C, ApplicationId, KeyValueStoreView<C>>

User applications.

stream_event_counts: MapView<C, StreamId, u32>

The number of events in the streams that this chain is writing to.

Implementations

impl<C> ExecutionStateView<C>

where C: Context + Clone + Send + Sync + 'static, C::Extra: ExecutionRuntimeContext,

pub async fn query_application( &mut self, context: QueryContext, query: Query, endpoint: Option<&mut ServiceRuntimeEndpoint>, ) -> Result<QueryOutcome, ExecutionError>

pub async fn list_applications( &self, ) -> Result<Vec<(ApplicationId, ApplicationDescription)>, ExecutionError>

Trait Implementations

impl<C> ClonableView for ExecutionStateView<C>

where SystemExecutionStateView<C>: ClonableView, HashedReentrantCollectionView<C, ApplicationId, KeyValueStoreView<C>>: ClonableView, MapView<C, StreamId, u32>: ClonableView, Self: View,

fn clone_unchecked(&mut self) -> Self

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

impl<C: Send + Sync + Context> ContainerType for ExecutionStateView<C>

async fn resolve_field(&self, ctx: &Context<'_>) -> ServerResult<Option<Value>>

Resolves a field value and outputs it as a json value async_graphql::Value.

async fn find_entity( &self, ctx: &Context<'_>, params: &Value, ) -> ServerResult<Option<Value>>

Find the GraphQL entity with the given name from the parameter.

fn collect_all_fields<'a>( &'a self, ctx: &ContextBase<'a, &'a Positioned<SelectionSet>>, fields: &mut Fields<'a>, ) -> Result<(), ServerError>

where Self: Send + Sync,

Collect all the fields of the container that are queried in the selection set.

impl<C> CryptoHashView for ExecutionStateView<C>

where SystemExecutionStateView<C>: HashableView, HashedReentrantCollectionView<C, ApplicationId, KeyValueStoreView<C>>: HashableView, MapView<C, StreamId, u32>: HashableView, Self: View,

async fn crypto_hash(&self) -> Result<CryptoHash, ViewError>

Computing the hash and attributing the type to it.

async fn crypto_hash_mut(&mut self) -> Result<CryptoHash, ViewError>

Computing the hash and attributing the type to it.

impl<C: Debug> Debug for ExecutionStateView<C>

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

Formats the value using the given formatter.

impl<C> HashableView for ExecutionStateView<C>

where SystemExecutionStateView<C>: HashableView, HashedReentrantCollectionView<C, ApplicationId, KeyValueStoreView<C>>: HashableView, MapView<C, StreamId, u32>: HashableView, Self: View,

type Hasher = CoreWrapper<Sha3_256Core>

How to compute hashes.

async fn hash_mut( &mut self, ) -> Result<<Self::Hasher as Hasher>::Output, ViewError>

Computes the hash of the values.

async fn hash(&self) -> Result<<Self::Hasher as Hasher>::Output, ViewError>

Computes the hash of the values.

impl<C: Send + Sync + Context> OutputType for ExecutionStateView<C>

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

Type the name.

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 qualified_type_name() -> String

Qualified typename.

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

Introspection type name

impl<C: Context, C2: Context> ReplaceContext<C2> for ExecutionStateView<C>

type Target = ExecutionStateView<C2>

The type returned after replacing the context.

async fn with_context( &mut self, ctx: impl FnOnce(&Self::Context) -> C2 + Clone, ) -> Self::Target

Returns a view with a replaced context.

impl<C> View for ExecutionStateView<C>

where C: Context, SystemExecutionStateView<C>: View<Context = C>, HashedReentrantCollectionView<C, ApplicationId, KeyValueStoreView<C>>: View<Context = C>, MapView<C, StreamId, u32>: View<Context = C>,

const NUM_INIT_KEYS: usize

The number of keys used for the initialization

type Context = C

The type of context stored in this view

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

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

Loads a view

fn rollback(&mut self)

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

async fn has_pending_changes(&self) -> bool

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: Self::Context) -> Result<Self, ViewError>

Builds a trivial view that is already deleted

impl<C: Send + Sync + Context> ObjectType for ExecutionStateView<C>