Struct NexusEventQuery 

pub struct NexusEventQuery { /* private fields */ }

Query that filters event wrappers using one current package graph.

Event emitter metadata chooses historical code identity. Live execution authority must be resolved separately from current object witnesses.

Implementations

impl NexusEventQuery

pub fn new( filter_context: Arc<NexusContext>, decoder: NexusEventDecoder, ) -> Self

Creates a query whose server filter uses filter_context.

pub fn with_supported_event_filter(self, filter: fn(&str) -> bool) -> Self

Keeps compiled protocol events accepted by filter.

Event names absent from the compiled protocol catalog are still decoded. This preserves the fail closed behavior for a compatible package that emits an event unknown to this SDK.

pub async fn decode_sui_event( &self, index: u64, digest: Digest, event: &Event, ) -> Result<Option<NexusEvent>, NexusEventDecodeError>

Decodes one Sui transaction event using this query.

Returns None when the event is not a Nexus event.

Errors

Returns NexusEventDecodeError when event contents cannot be decoded or the inner Nexus event type is unsupported.

Trait Implementations

impl Clone for NexusEventQuery

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl EventQuery for NexusEventQuery

type Error = NexusEventDecodeError

Error returned while converting a Sui event.

type Output = NexusEventCandidate

Event type emitted by the query.

fn filter(&self) -> EventFilter

Returns the server filter for this query.

fn read_mask(&self) -> FieldMask

Returns the fields requested by this query.

async fn decode( &self, event: Event, ) -> Result<Option<Self::Output>, Self::Error>

Converts one Sui event into an optional query result.