Struct db_rs::single::Single

pub struct Single<T>where
    T: Serialize + DeserializeOwned,{
    pub logger: Logger,
    /* private fields */
}

A table which stores 0 or 1 values – backed by Option

Fields

logger: Logger

Implementations

impl<T> Single<T>where T: Serialize + DeserializeOwned,

pub fn insert(&mut self, value: T) -> DbResult<Option<T>>

pub fn get(&self) -> Option<&T>

pub fn clear(&mut self) -> DbResult<Option<T>>

Trait Implementations

impl<T> Debug for Single<T>where T: Serialize + DeserializeOwned + Debug,

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

Formats the value using the given formatter.

impl<T> Table for Single<T>where T: Serialize + DeserializeOwned,

fn init(table_id: TableId, logger: Logger) -> Self

fn handle_event(&mut self, bytes: &[u8]) -> DbResult<()>

fn compact_repr(&self) -> DbResult<Vec<u8>>