pub struct OperationLog {
db: Database,
oldest_entry: OnceCell<ChronologicalOperationLogKey>,
}
Fields§
§db: Database
§oldest_entry: OnceCell<ChronologicalOperationLogKey>
Implementations§
Source§impl OperationLog
impl OperationLog
pub fn new(db: Database) -> Self
Sourceasync fn get_oldest_operation_log_key(
&self,
) -> Option<ChronologicalOperationLogKey>
async fn get_oldest_operation_log_key( &self, ) -> Option<ChronologicalOperationLogKey>
Will return the oldest operation log key in the database and cache the result. If no entry exists yet the DB will be queried on each call till an entry is present.
pub async fn add_operation_log_entry_dbtx( &self, dbtx: &mut DatabaseTransaction<'_>, operation_id: OperationId, operation_type: &str, operation_meta: impl Serialize, )
pub async fn list_operations( &self, limit: usize, last_seen: Option<ChronologicalOperationLogKey>, ) -> Vec<(ChronologicalOperationLogKey, OperationLogEntry)>
paginate_operations_rev
insteadSourcepub async fn paginate_operations_rev(
&self,
limit: usize,
last_seen: Option<ChronologicalOperationLogKey>,
) -> Vec<(ChronologicalOperationLogKey, OperationLogEntry)>
pub async fn paginate_operations_rev( &self, limit: usize, last_seen: Option<ChronologicalOperationLogKey>, ) -> Vec<(ChronologicalOperationLogKey, OperationLogEntry)>
Returns the last limit
operations. To fetch the next page, pass the
last operation’s ChronologicalOperationLogKey
as start_after
.
pub async fn get_operation( &self, operation_id: OperationId, ) -> Option<OperationLogEntry>
pub async fn get_operation_dbtx( dbtx: &mut DatabaseTransaction<'_>, operation_id: OperationId, ) -> Option<OperationLogEntry>
Sourcepub async fn set_operation_outcome(
db: &Database,
operation_id: OperationId,
outcome: &(impl Serialize + Debug),
) -> Result<()>
pub async fn set_operation_outcome( db: &Database, operation_id: OperationId, outcome: &(impl Serialize + Debug), ) -> Result<()>
Sets the outcome of an operation
Sourcepub fn outcome_or_updates<U, S>(
db: &Database,
operation_id: OperationId,
operation_log_entry: OperationLogEntry,
stream_gen: impl FnOnce() -> S,
) -> UpdateStreamOrOutcome<U>
pub fn outcome_or_updates<U, S>( db: &Database, operation_id: OperationId, operation_log_entry: OperationLogEntry, stream_gen: impl FnOnce() -> S, ) -> UpdateStreamOrOutcome<U>
Returns an a UpdateStreamOrOutcome
enum that can be converted into
an update stream for easier handling using
UpdateStreamOrOutcome::into_stream
but can also be matched over to
shortcut the handling of final outcomes.
Sourcepub async fn optimistically_set_operation_outcome(
db: &Database,
operation_id: OperationId,
outcome: &(impl Serialize + Debug),
)
pub async fn optimistically_set_operation_outcome( db: &Database, operation_id: OperationId, outcome: &(impl Serialize + Debug), )
Tries to set the outcome of an operation, but only logs an error if it fails and does not return it. Since the outcome can always be recomputed from an update stream, failing to save it isn’t a problem in cases where we do this merely for caching.
Trait Implementations§
Source§impl Clone for OperationLog
impl Clone for OperationLog
Source§fn clone(&self) -> OperationLog
fn clone(&self) -> OperationLog
1.0.0 · Source§fn clone_from(&mut self, source: &Self)
fn clone_from(&mut self, source: &Self)
source
. Read moreSource§impl Debug for OperationLog
impl Debug for OperationLog
Source§impl IOperationLog for OperationLog
impl IOperationLog for OperationLog
fn get_operation<'life0, 'async_trait>(
&'life0 self,
operation_id: OperationId,
) -> Pin<Box<dyn Future<Output = Option<OperationLogEntry>> + Send + 'async_trait>>where
Self: 'async_trait,
'life0: 'async_trait,
fn get_operation_dbtx<'life0, 'life1, 'life2, 'async_trait>(
&'life0 self,
dbtx: &'life1 mut DatabaseTransaction<'life2>,
operation_id: OperationId,
) -> Pin<Box<dyn Future<Output = Option<OperationLogEntry>> + Send + 'async_trait>>where
Self: 'async_trait,
'life0: 'async_trait,
'life1: 'async_trait,
'life2: 'async_trait,
fn add_operation_log_entry_dbtx<'life0, 'life1, 'life2, 'life3, 'async_trait>(
&'life0 self,
dbtx: &'life1 mut DatabaseTransaction<'life2>,
operation_id: OperationId,
operation_type: &'life3 str,
operation_meta: Value,
) -> Pin<Box<dyn Future<Output = ()> + Send + 'async_trait>>where
Self: 'async_trait,
'life0: 'async_trait,
'life1: 'async_trait,
'life2: 'async_trait,
'life3: 'async_trait,
fn outcome_or_updates( &self, db: &Database, operation_id: OperationId, operation: OperationLogEntry, stream_gen: Box<dyn FnOnce() -> BoxStream<'static, Value>>, ) -> UpdateStreamOrOutcome<Value>
Auto Trait Implementations§
impl !Freeze for OperationLog
impl !RefUnwindSafe for OperationLog
impl Send for OperationLog
impl Sync for OperationLog
impl Unpin for OperationLog
impl !UnwindSafe for OperationLog
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