Struct StorageBuilder 

pub struct StorageBuilder { /* private fields */ }

Builder struct for Storage

A provider can either implement ExpiryStore directly, or implement Store and rely on another provider to provide expiration capablities. The builder will polyfill a ExpiryStore by combining an Expiry and a Store itself.

If there is no Expiry set in either of the ways, it will result in runtime errors when calling methods which require that functionality.

Implementations

impl StorageBuilder

pub fn store(self, store: impl Store + 'static) -> Self

This method can be used to set a Store, the second call to this method will overwrite the store.

pub fn expiry(self, expiry: impl Expiry + 'static) -> Self

This method can be used to set a Expiry, the second call to this method will overwrite the expiry.

The expiry should work on the same storage as the provided store.

pub fn expiry_store<T>(self, expiry_store: T) -> Self

where T: 'static + Store + Expiry + ExpiryStore,

This method can be used to set an ExpiryStore directly, Its error to call expiry or store after calling this method.

pub fn format(self, format: Format) -> Self

This method can be used to set the format storage will use for serialization/deserialization, we will use default format if it is not called which can be None if there is no serde feature enabled.

pub fn finish(self) -> Storage

This method should be used after configuring the storage.

Panics

If there is no store provided either by calling expiry_store or store it will panic.

Trait Implementations

impl Default for StorageBuilder

fn default() -> StorageBuilder

Returns the “default value” for a type.