NullCache

Inherits: ICache

Description

The NullCache class allows you to implement a dummy cache that doesn’t do anything.

Important points

• It can be used in testing or in situations where a cache is required but must be disabled.

Instance methods

RemoveAsync

Removes a value from the cache by its key.

public override Task Remove(string correlationId, string key)

• correlationId: string - (optional) transaction id used to trace execution through the call chain.
• key: string - unique value key.

RetrieveAsync

Retrieves a cached value from the cache using its key. If value is missing in the cache or expired, it returns null.

public Task<T> RetrieveAsync<T>(string correlationId, string key)

• correlationId: string - (optional) transaction id to used trace execution through the call chain.
• key: string - unique value key.
• returns: Task<T> - cached value or null, if value wasn’t found or timeout expired.

StoreAsync

Stores a value in the cache with expiration time.

public Task<T> StoreAsync<T>(string correlationId, string key, T value, long timeout)

• correlationId: string - (optional) transaction id used to trace execution through the call chain.
• key: string - unique value key.
• value: T - value to store.
• timeout: long - timeout in milliseconds.
• returns: Task<T> - cached value stored in the cache.

See also

• ICache