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本地缓存策略 ↑

实现 LocalCache 的缓存会在一个块的持续时间内使用内存缓存作为后备。对于同一键的缓存的重复调用将命中内存缓存以获得更快的访问。

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实例公共方法

local_cache()

当前的本地缓存。

Source: show | on GitHub

# File activesupport/lib/active_support/cache/strategy/local_cache.rb, line 82
def local_cache
  LocalCacheRegistry.cache_for(local_cache_key)
end

middleware()

中间件类可以作为 Rack 处理程序插入，以便在请求期间进行本地缓存。

Source: show | on GitHub

# File activesupport/lib/active_support/cache/strategy/local_cache.rb, line 88
def middleware
  @middleware ||= Middleware.new("ActiveSupport::Cache::Strategy::LocalCache", self)
end

new_local_cache()

设置一个新的本地缓存。

Source: show | on GitHub

# File activesupport/lib/active_support/cache/strategy/local_cache.rb, line 72
def new_local_cache
  LocalCacheRegistry.set_cache_for(local_cache_key, LocalStore.new)
end

unset_local_cache()

取消设置当前的本地缓存。

Source: show | on GitHub

# File activesupport/lib/active_support/cache/strategy/local_cache.rb, line 77
def unset_local_cache
  LocalCacheRegistry.set_cache_for(local_cache_key, nil)
end

with_local_cache(&block)

在块的持续时间内使用本地缓存。

Source: show | on GitHub

# File activesupport/lib/active_support/cache/strategy/local_cache.rb, line 67
def with_local_cache(&block)
  use_temporary_local_cache(LocalStore.new, &block)
end