Struct Store

pub struct Store { /* private fields */ }

Implementations

impl Store

pub fn new() -> Self

Same as Store::default()

impl Store

pub fn seq_next<T: Serialize + 'static>(&self) -> u64

Each object store have a u64 sequential id generator which will increment on each call. Notes:

• The first seq_next() call will return 1 since is initialize at 0.
• Also, if the object store does it exists yet, it will create it.

pub fn insert<T: Serialize + 'static>(&self, val: T) -> Result<()>

Insert a new value to the underlying store for this type.

Fails if it cannot call serde_json::to_value

pub fn first<T>( &self, filter: impl Into<Option<FilterGroups>>, ) -> Result<Option<T>>

where T: DeserializeOwned + 'static,

pub fn list<T>(&self, filter: impl Into<Option<FilterGroups>>) -> Result<Vec<T>>

where T: DeserializeOwned + 'static,

List all of the values for a given Type application the Filter

pub fn delete<T>(&self, filter: impl Into<FilterGroups>) -> Result<u64>

where T: DeserializeOwned + 'static,

pub fn update<T, F>( &self, filter: impl Into<FilterGroups>, modifier: F, ) -> Result<u64>

where T: Serialize + DeserializeOwned + 'static, F: Fn(T) -> T,

Update zero or more item in a type store, for a given filter_groups with the modifier function.

Some limitations:

• It will few clones to keep the API ergonomic convenient. (might try to use Deserialize<'_>)
• For now, it will stop at first error. Eventually, we might capture the error an continue.
• Obviously, do not have commit/rollback capability. This is just a mock-store.

Trait Implementations

impl Clone for Store

fn clone(&self) -> Store

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Default for Store

fn default() -> Store

Returns the “default value” for a type.