Comments (3)
bitfaster
commented on May 30, 2024
1
Agree this is useful - I will look at adding two methods:
- TryUpdate(key, value)
- AddOrUpdate(key, value)
The first option can be used in cases where you know a value is changed, but not whether it is cached. So you can try to update it, and if it's not cached the cache will not be polluted.
The second option is effectively a Put, and could be used to seed the cache as you described.
Regarding the GetOrAdd method and the lambda throwing an exception - if it throws nothing is cached and the exception is not caught by the cache code, I assume the caller would catch and take steps to recover. I haven't tried but believe if the lambda returns null, null will be cached.
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prat0088
commented on May 30, 2024
Those additions sound great
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bitfaster
commented on May 30, 2024
Merged implementations of both TryUpdate and GetOrAdd. They will be in the next package update.
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Related Issues (20)
- Serialise contents of LRU HOT 1
- [Feature request] - Enumerate all cached keys HOT 1
- Is it possible to add a method where it'll provide rough memory that is being used by the cache stance? HOT 2
- Is there a way to dump all values in the cache? HOT 1
- FastConcurrentTLru's Constructor timetolive is not precise on liunx mac platform HOT 7
- Any plans to evict expired items on the background? HOT 2
- Expiration based on a Value's property? HOT 2
- NuGet package is missing intellisense xml file HOT 1
- Use NonBlocking instead of ConcurrentDictionary HOT 1
- [Feature request] individual items expiry HOT 1
- Current time provider HOT 6
- [Feature request] Allow to pass additional factory argument to the `GetOrAdd`/`GetOrAddAsync` cache methods HOT 2
- Entry left in cache configured with WithAtomicGetOrAdd when value factory throws HOT 4
- [Feature request] Atomic TryRemove HOT 3
- [Feature request] Expire after access LRU HOT 5
- [Feature request] Add TryRemove(K, out V) overload HOT 1
- [Feature request] Add MRU cache HOT 3
- [Bug] Cold queue increases infinitely for some partitions and cache sizes HOT 3
- [Feature Request] Add TryRemove(KeyValuePair<K, V>) overload HOT 2
- [Feature] Add event for when an item is expired. HOT 6
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