[−][src]Trait catwalk::PersistenceEngine

pub trait PersistenceEngine {
    type Persister: Persister;
    pub fn has_persister(&self, name: &str) -> bool;

    pub fn create_persister(&mut self, name: &str) -> Result<&Self::Persister>;

    pub fn get_persister(&self, name: &str) -> Result<Option<&Self::Persister>>;

    pub fn store<R: AsRef<[u8]>>(
        &mut self, 
        persister_name: &str, 
        key: &str, 
        data: R
    ) -> Result<()> { ... }

    pub fn get<R: AsRef<[u8]>>(
        &mut self, 
        persister_name: &str, 
        key: &str
    ) -> Result<Option<R>> { ... }

    pub fn get_or_create_persister(
        &mut self, 
        name: &str
    ) -> Result<&Self::Persister> { ... }
}

Associated Types

type Persister: Persister[src]

The type of Persisters used by the engine implementation.

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Required methods

pub fn has_persister(&self, name: &str) -> bool[src]

Check to see if a Persister with the given name exists.

pub fn create_persister(&mut self, name: &str) -> Result<&Self::Persister>[src]

Creates a new Persister. If the Persister already exists, then it should return an PersisterAlreadyExists.

pub fn get_persister(&self, name: &str) -> Result<Option<&Self::Persister>>[src]

Gets an existing Persister. If the Persister doesn't exist, then it should return None.

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Provided methods

pub fn store<R: AsRef<[u8]>>(
    &mut self,
    persister_name: &str,
    key: &str,
    data: R
) -> Result<()>[src]

Stores bytes in the backend database.

pub fn get<R: AsRef<[u8]>>(
    &mut self,
    persister_name: &str,
    key: &str
) -> Result<Option<R>>[src]

Get bytes from the backend database.

pub fn get_or_create_persister(
    &mut self,
    name: &str
) -> Result<&Self::Persister>[src]

Gets a Persister if it exists, otherwise, create the Persister and return the newly created one.

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Implementors

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