pub trait ClientPersistence {
fn open(&mut self, client_id: &str, server_uri: &str) -> Result<()>;
fn close(&mut self) -> Result<()>;
fn put(&mut self, key: &str, buffers: Vec<&[u8]>) -> Result<()>;
fn get(&mut self, key: &str) -> Result<Vec<u8>>;
fn remove(&mut self, key: &str) -> Result<()>;
fn keys(&mut self) -> Result<Vec<String>>;
fn clear(&mut self) -> Result<()>;
fn contains_key(&mut self, key: &str) -> bool;
}
Expand description
Trait to implement custom persistence in the client.
Required methods
Open and initialize the persistent store.
client_id
The unique client identifier.
server_uri
The address of the server to which the client is
connected.
Put data into the persistence store.
key
The key to the data.
buffers
The data to place into the store. Note that these can be
concatenated into a single, contiguous unit if helpful.
Gets data from the persistence store.
key
They key for the desired data.
Removes data for the specified key.
key
The key for the data to remove.
Gets the keys that are currently in the persistence store
Clear the persistence store so that it no longer contains any data.
fn contains_key(&mut self, key: &str) -> bool
fn contains_key(&mut self, key: &str) -> bool
Determines if the persistence store contains the key.
key
The key to look for.