Struct JsonFileStore 

pub struct JsonFileStore { /* private fields */ }

Implementations

impl JsonFileStore

pub fn new(path: impl Into<PathBuf>) -> Self

Examples found in repository

examples/runtime_persistence.rs (line 21)

fn run() -> Result<(), Box<dyn std::error::Error>> {
    let path = temp_state_path("runtime");
    let mut runtime = KernelRuntime::load(JsonFileStore::new(&path))?;

    let receipt = runtime.write_with_receipt("apps.demo.home.count", 3_u64)?;
    let json = runtime_receipt_to_json(&receipt);

    assert_eq!(json["events"][0]["path"][0], "apps");
    assert_eq!(json["events"][0]["path"][2], "home");
    assert_eq!(json["events"][0]["value"], 3.0);

    let restored = KernelRuntime::load(JsonFileStore::new(&path))?;
    assert_eq!(
        restored.read("apps.demo.home.count"),
        Some(&Value::from(3_u64))
    );
    assert!(restored.events().is_empty());

    println!("{json}");
    let _ = fs::remove_file(path);
    Ok(())
}

pub fn path(&self) -> &Path

Trait Implementations

impl Clone for JsonFileStore

fn clone(&self) -> JsonFileStore

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for JsonFileStore

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

Formats the value using the given formatter.

impl MemoryStore for JsonFileStore

fn load_snapshot(&self) -> Result<Option<Snapshot>, StorageError>

fn save_snapshot(&self, snapshot: &Snapshot) -> Result<(), StorageError>

fn load_kernel(&self) -> Result<Kernel, StorageError>

fn save_kernel(&self, kernel: &Kernel) -> Result<(), StorageError>