NullStateStore

Dummy state store implementation that doesn’t do anything.

Implements: IStateStore

It can be used in testing or in situations when state management is not required but shall be disabled.

Deletes a state from the store by its key.

public delete<T>(correlationId: string, key: string): Promise<T>

correlationId: string - (optional) transaction id to trace execution through a call chain.
key: string - a unique value key.
return: Promise<T> - removed item

Loads state from the store using its key. If value is missing in the store it returns null.

public load<T>(correlationId: string, key: string): Promise<T>

correlationId: string - (optional) transaction id to trace execution through a call chain.
key: string - a unique state key.
return: Promise<T> - the state value or null if value wasn’t found.

Loads an array of states from the store using their keys.

public loadBulk<T>(correlationId: string, keys: string[]): Promise<StateValue<T>[]>

correlationId: string - (optional) transaction id to trace execution through call chain.
keys: string[] - unique state keys.
returns: Promise<StateValue<T>[]> - an array with state values and their corresponding keys.

Saves state into the store.

public save<T>(correlationId: string, key: string, value: any): Promise<T>

correlationId: string - (optional) transaction id to trace execution through a call chain.
key: string - a unique state key.
value: any - a state value.
returns: Promise<T> - execution duration in milliseconds.