Trait BaseStore 

pub trait BaseStore: Send + Sync {
    // Required methods
    fn get(
        &self,
        namespace: &str,
        key: &str,
    ) -> Result<Option<Vec<u8>>, VfsError>;
    fn set(
        &self,
        namespace: &str,
        key: &str,
        value: Vec<u8>,
    ) -> Result<(), VfsError>;
    fn delete(&self, namespace: &str, key: &str) -> Result<(), VfsError>;
    fn list(&self, namespace: &str) -> Result<Vec<String>, VfsError>;
}

Namespaced key-value store that delegates to a BaseStore.

In production this wraps a SQLite checkpoint. In tests it wraps an in-memory map. All keys are namespaced by namespace/key.

Required Methods

fn get(&self, namespace: &str, key: &str) -> Result<Option<Vec<u8>>, VfsError>

Read a value.

fn set( &self, namespace: &str, key: &str, value: Vec<u8>, ) -> Result<(), VfsError>

Write a value.

fn delete(&self, namespace: &str, key: &str) -> Result<(), VfsError>

Delete a value.

fn list(&self, namespace: &str) -> Result<Vec<String>, VfsError>

List all keys in a namespace.

Dyn Compatibility

This trait is dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety".

Implementors

impl BaseStore for InMemoryStore