What are the functions of MemoryCache in C#?

6 months ago

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In C#, the MemoryCache class enables storing and retrieving objects in the memory of the application. It has the following capabilities:

MemoryCache stores objects in the form of key-value pairs, allowing retrieval and removal of stored objects based on their keys.
Expiration and expiration strategy of cached objects: Objects stored can be assigned an expiration time, which will automatically remove the object or execute a specified operation after expiration.
Priority of Cached Objects: Objects stored in the cache can be assigned a priority, allowing objects to be automatically removed based on priority when memory is running low.
Setting the relative or absolute expiration time of cached objects: You can specify either a relative expiration time (e.g. expires in 5 minutes) or an absolute expiration time (e.g. expires at 3 PM).
Callback function for cache: It allows setting a callback function for stored objects to be executed when the object expires or is removed from the cache.
Multi-thread safe: MemoryCache is thread-safe, allowing multiple threads to access and manipulate the cache simultaneously.
Monitoring cache changes: You can perform specific operations by monitoring changes in the cache, such as executing specified actions when cache items are added, removed, or expired.

In conclusion, the MemoryCache class offers a convenient and flexible way to manage and manipulate cache objects in an application, aiming to improve the performance and efficiency of the application.