Trait checkpoint::UncommittedCheckpoint

pub trait UncommittedCheckpoint {
    fn get<T: DeserializeOwned + Serialize>(&mut self, key: &str) -> Result<T>;
    fn keys(&mut self) -> Result<Vec<String>>;
    fn identifier(&mut self) -> Result<&str>;
    fn put<T: DeserializeOwned + Serialize>(
        &mut self, 
        key: &str, 
        value: &T
    ) -> Result<()>;
    fn remove(&mut self, key: &str) -> Result<()>;
}

The UncommittedCheckpoint trait allows checkpoint data to be modified and retrieved from the storage backing a checkpoint object.

Required Methods

fn get<T: DeserializeOwned + Serialize>(&mut self, key: &str) -> Result<T>

Retrieves the value associated with the provided key from a checkpoint.

fn keys(&mut self) -> Result<Vec<String>>

Returns a list of keys that are associated with a value in a checkpoint.

fn identifier(&mut self) -> Result<&str>

Returns a checkpoint's identifier.

fn put<T: DeserializeOwned + Serialize>(
    &mut self,
    key: &str,
    value: &T
) -> Result<()>

Stores the provided value in a checkpoint and associates it with the provided key.

fn remove(&mut self, key: &str) -> Result<()>

Removes the value associated with the provided key from a checkpoint.

Implementors