> For the complete documentation index, see [llms.txt](https://docs.zongsoft.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.zongsoft.com/documentation/en/framework/core/caching.md).

# Zongsoft.Caching

Responsibilities and main types of the Zongsoft.Caching namespace.

`Zongsoft.Caching` provides cache abstraction and memory cache implementation in the core class library to support in-process caching, cache expiration, capacity control, buffer refresh and cache event notification.

## Main Responsibilities

* Define cache access abstractions such as `IDistributedCache`.
* Provides in-process cache implementation and configuration such as `MemoryCache` and `MemoryCacheOptions`.
* Express cache expiration policies, cache priorities, eviction reasons, and cache change events.
* Provides `Spooler<T>` asynchronous buffer for batch refresh of high-frequency writes.
* Provide unified cache dependencies for other modules instead of directly binding a specific cache implementation.

## Type

<table data-view="cards"><thead><tr><th></th><th></th><th data-hidden data-card-target data-type="content-ref">Page</th></tr></thead><tbody><tr><td><strong>MemoryCache</strong></td><td>In-process caching, expiration policies, dependency tokens, retirement events, and capacity reminders.</td><td><a href="/documentation/en/framework/core/caching/memory-cache.md">Cache</a></td></tr><tr><td><strong>Spooler&#x3C;T></strong></td><td>Channel-based asynchronous buffer for batch refresh of high-frequency writes.</td><td><a href="/documentation/en/framework/core/caching/spooler.md">Spooler</a></td></tr></tbody></table>

## Related Resources

* [Caching source code directory](https://github.com/Zongsoft/framework/tree/main/Zongsoft.Core/src/Caching)


---

# Agent Instructions
This documentation is published with GitBook. GitBook is the documentation platform designed so that both humans and AI agents can read, navigate, and reason over technical content effectively. Learn more at gitbook.com.

## Querying This Documentation
If you need additional information that is not directly available in this page, you can query the documentation by asking a question.

Perform an HTTP GET request on the following URL with the `ask` and `goal` query parameters:

```
GET https://docs.zongsoft.com/documentation/en/framework/core/caching.md?ask=<question>&goal=<user_goal>
```

`ask` is the immediate question: it should be specific, self-contained, and written in natural language.
`goal` is what the user is ultimately trying to achieve, the reason they need the answer. Sharing it helps GitBook give you a better, more relevant answer. A goal is most helpful when it describes the outcome the user wants rather than restating the question. For example, with `ask=how do I create an API token`, a goal like `automate deployments from our CI pipeline` lets GitBook tailor the answer to that use case.

The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.
