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NoopCache

Struct NoopCache 

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pub struct NoopCache;
Expand description

A cache that never stores anything — every get returns None.

Used as the default when caching is disabled (TTL = 0) and in unit tests.

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impl<V: Clone + Send + Sync> AuthzCache<V> for NoopCache

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fn get(&self, _key: &str) -> Option<V>

Look up a cached value by key. Returns None on miss.
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fn insert(&self, _key: &str, _value: V)

Insert a value into the cache.
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fn invalidate(&self, _key: &str)

Remove a single entry by key.
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fn invalidate_all(&self)

Remove all entries from the cache.
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fn metrics(&self) -> Box<dyn CacheMetrics>

Get cache performance metrics.

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impl<T> Any for T
where T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

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where T: Any + ?Sized,

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fn coerce_rc_to(self: Rc<X>) -> Rc<T>

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fn coerce_box_to(self: Box<X>) -> Box<T>

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fn coerce_mut_to(&mut self) -> &mut T

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