Struct BackendBuilder 

pub struct BackendBuilder<Args, DB, Fetch, Sink, IdType, Config = ()> { /* private fields */ }

Builder for CustomBackend

Lets you set the database, fetcher, sink, codec, and config

Implementations

impl<Args, DB, Fetch, Sink, IdType> BackendBuilder<Args, DB, Fetch, Sink, IdType, ()>

pub fn new() -> Self

Create a new BackendBuilder instance

pub fn new_with_cfg<Config>( config: Config, ) -> BackendBuilder<Args, DB, Fetch, Sink, IdType, Config>

Create a new BackendBuilder instance with custom configuration

impl<Args, DB, Fetch, Sink, IdType, Config> BackendBuilder<Args, DB, Fetch, Sink, IdType, Config>

pub fn database(self, db: DB) -> Self

The custom backend persistence engine

pub fn fetcher<F: Fn(&mut DB, &Config, &WorkerContext) -> Fetch + Send + Sync + 'static>( self, fetcher: F, ) -> Self

The fetcher function to retrieve tasks from the database

pub fn sink<F: Fn(&mut DB, &Config) -> Sink + Send + Sync + 'static>( self, sink: F, ) -> Self

The sink function to persist tasks to the database

pub fn build( self, ) -> Result<CustomBackend<Args, DB, Fetch, Sink, IdType, Config>, BuildError>

Build the CustomBackend instance

Trait Implementations

impl<Args, DB, Fetch, Sink, IdType, Config> Debug for BackendBuilder<Args, DB, Fetch, Sink, IdType, Config>

where DB: Debug, Config: Debug,

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

Formats the value using the given formatter.

impl<Args, DB, Fetch, Sink, IdType, Config> Default for BackendBuilder<Args, DB, Fetch, Sink, IdType, Config>

fn default() -> Self

Returns the “default value” for a type.